The promoters of these products promise traders a way to beat the market by arbitraging prices between different exchanges. Don’t believe the hype. Bitcoin exchanges often have expensive withdrawal processes and hefty fees for trading bitcoin with fiat currencies, such as dollars or euros. Also, settlement of bitcoin trades can take hours. These factors will eliminate any profits from bitcoin arbitrage and may even lead to losses.

Ethereum (ETH) is more than just a currency – it’s like one giant computer housing many computers around the globe. Ethereum can respond to sophisticated requests. Its ability to store revolutionary computer programs, known as smart contracts, gives Ethereum an edge over Bitcoin and has attracted attention from banks around the world. This, among other factors, has led to a jump of almost 10,000% in 2017!


D – An obligation rated ‘D’ is in default or in breach of an imputed promise. For non-hybrid capital instruments, the ‘D’ rating category is used when payments on an obligation are not made on the date due, unless Standard & Poor’s believes that such payments will be made within five business days in the absence of a stated grace period or within the earlier of the stated grace period or 30 calendar days. The ‘D’ rating also will be used upon the filing of a bankruptcy petition or the taking of similar action and where default on an obligation is a virtual certainty, for example due to automatic stay provisions. An obligation’s rating is lowered to ‘D’ if it is subject to a distressed exchange offer.
Basically, if you trade margin spot on a site like Kraken or Bitfinex, you will pay financing fees while you hold the position open. The same goes for CFD sites like WhaleClub or 1Broker. With bitcoin futures, you are able to trade margin without expending interest, because counterparties to the contract pay a fee to open and close the contract, and the exchange just manages the risk, so no money is really being lent!
Trader A is a producer of pork bellies. In order to insure herself against a price drop in pork bellies in the future, she enters a futures contract with Trader B. Trader B uses these pork bellies to manufacture sliced breakfast bacon. Thus, he is not worried that prices might fall in the future – his worry is that prices will go up. Both traders agree that Trader A will sell a metric ton of pork bellies for 1,000 USD 3 months from now. This increases security for both of their businesses. Because a futures contract is a binding contract between two parties, neither party can drop out of the contract: Even if the price for pork bellies is 1,200 USD at the time of execution, trader A is still contractually obliged to sell for 1,000 USD.
Bitcoin is a relatively new type of currency—a digital or cryptocurrency secured through cryptography, or codes that can’t be read without a key. Traditional currencies are made up of paper bills and coins. Unlike traditional currencies, the bitcoin is not issued by any central government. Rather, a computer algorithm determines how many bitcoins are produced and added to the economy. This is much different than a traditional currency, where central banks typically determine how much money to print.
With the increased use of technologies such as the Internet and the dependence on computer systems to perform necessary business functions, the Funds and the digital assets that underline the bitcoin futures contracts in which the Funds invest are susceptible to operational and information security risk. The digital nature of bitcoins and the irreversible nature of bitcoin transactions makes bitcoin an attractive target for theft, hacking and other cyber-attacks. In general, cyber incidents can result from deliberate attacks or unintentional events. Cyber-attacks include, but are not limited to gaining unauthorized access to digital systems for purposes of misappropriating assets such as bitcoin or other cryptocurrencies or gaining access to sensitive information, corrupting data, or causing operational disruption. Cyber-attacks may also be carried out in a manner that does not require gaining unauthorized access, such as causing denial-of-service attacks on websites. Such events have historically correlated with a drop in the price of bitcoin, which may adversely affect your investment in a Fund. Cyber security failures or breaches of a Fund’s third party service provider (including, but not limited to, index providers, the administrator and transfer agent) or the issuers of the bitcoin futures contracts in which the Funds invest, have the ability to cause disruptions and impact business operations, potentially resulting in financial losses, the inability of a Fund’s shareholders to transact business, violations of applicable privacy and other laws, regulatory fines, penalties, reputational damage, reimbursement or other compensation costs, and/or additional compliance costs. In addition, substantial costs may be incurred in order to prevent any cyber incidents in the future. The Funds their service providers, counterparties and other market participants on which the Funds rely could be negatively impacted as a result. While the Funds have established business continuity plans and systems to prevent such cyber-attacks, there are inherent limitations in such plans and systems including the possibility that certain risks have not been identified.
Credit Default Swaps (“CDS”): In the case of a CDS, the agreement will reference one or more debt securities or reference entities. The protection “buyer” in a credit default contract is generally obligated to pay the protection “seller” an upfront or a periodic stream of payments over the term of the contract until a credit event, such as a default, on a reference entity has occurred. If a credit event occurs, the seller generally must pay the buyer: a) the full notional value of the swap; or b) the difference between the notional value of the defaulted reference entity and the recovery price/rate for the defaulted reference entity. CDS are designed to reflect changes in credit quality, including events of default. The CDS Short North American HY Credit ETF will normally be a “buyer” of CDS (also referred to as a buyer of protection or a seller of risk). The CDS Short North American HY Credit ETF will primarily invest in centrally cleared, index-based CDS that provide credit exposure through a single trade to a basket of reference entities. The CDS Short North American HY Credit ETF may also invest in single-name CDS. Single-name CDS provide exposure to a single reference entity and are not centrally cleared.
Each Fund bears all expenses of its operations other than those assumed by ProShare Advisors or the Administrator. Fund expenses include but are not limited to: the investment advisory fee; management services fee; administrative fees, index receipt agent fees, principal financial officer/treasurer services fees; compliance service fees, anti-money laundering administration fees; custodian and accounting fees and expenses, legal and auditing fees; securities valuation expenses; fidelity bonds and other insurance premiums; expenses of preparing and printing prospectuses, proxy statements, and shareholder reports and notices; registration fees and expenses; proxy and annual meeting expenses, if any; licensing fees; listing fees; all federal, state, and local taxes (including, without limitation, stamp, excise, income, and franchise taxes); organizational costs; and Independent Trustees’ fees and expenses.
Special Note Regarding the Correlation Risks of Geared Funds (All Funds, except the Matching ProShares Funds, the Managed Futures Strategy ETF, the Crude Oil Strategy ETF, the Bitcoin Futures Strategy ETF, the Short Bitcoin Futures Strategy ETF, the Blockchain/Bitcoin Strategy ETF, and the Bitcoin Futures/Equity Strategy ETF and the CDS Short North American HY Credit ETF)
Each Fund has adopted certain investment restrictions as fundamental policies that cannot be changed without a “vote of a majority of the outstanding voting securities” of the Fund. The phrase “majority of outstanding voting securities” is defined in the 1940 Act as the lesser of: (i) 67% or more of the shares of the Fund present at a duly-called meeting of shareholders, if the holders of more than 50% of the outstanding shares of the Fund are present or represented by proxy; or (ii) more than 50% of the outstanding shares of the Fund. (All policies of a Fund not specifically identified in this Statement of Additional Information or its Prospectus as fundamental may be changed without a vote of the shareholders of the Fund.) For purposes of the following limitations, all percentage limitations apply immediately after a purchase or initial investment.
Disclaimer: I am not a professional (or even a veteran) trader. I am an intermediate trader with a passion for cryptocurrency. I am disclosing my own ventures in crypto because cryptocurrency trading does make up a chunk of my online income and I want to be 100% transparent with you when it comes to making money online. Investing in cryptocurrencies carries a risk – you may lose some or all of your investment. Always do your own research and draw your own conclusions. Again – this article is aimed purely at advising; draw your own conclusions on whether cryptocurrency trading is right for you.

To seek to achieve its investment objective, as a cash reserve, for liquidity purposes, or as cover for positions it has taken, each Fund may invest all or part of its assets in cash or cash equivalents, which include, but are not limited to, short-term money market instruments, U.S. government securities, certificates of deposit, bankers acceptances, or repurchase agreements secured by U.S. government securities.
While it is likely that regulatory laws surrounding ICOs will only be settled in court (perhaps even the Supreme Court), if ICO tokens are legally classified as securities, any exchange that wants to list those tokens needs to either register as a national securities exchange or operate under an exemption and set itself up as an alternative trading system (ATS).
form, number and at such place as such DTC Participant may reasonably request, in order that such notice, statement or communication may be transmitted by such DTC Participant, directly or indirectly, to such Beneficial owners. In addition, the Trust shall pay to each such DTC Participant a fair and reasonable amount as reimbursement for the expenses attendant to such transmittal, all subject to applicable statutory and regulatory requirements.
Floating and variable rate notes generally are unsecured obligations issued by financial institutions and other entities. They typically have a stated maturity of more than one year and an interest rate that changes either at specific intervals or whenever a benchmark rate changes. The effective maturity of each floating or variable rate note in a Fund’s portfolio will be based on these periodic adjustments. The interest rate adjustments are designed to help stabilize the note’s price. While this feature helps protect against a decline in the note’s market price when interest rates rise, it lowers a Fund’s income when interest rates fall. Of course, a Fund’s income from its floating and variable rate investments also may increase if interest rates rise.

•   If a Fund qualifies for treatment as a regulated investment company, it is not subject to federal income tax on net investment income and net realized capital gains that the Fund timely distributes to its shareholders. If a Fund were to fail to so qualify, and were ineligible to or otherwise did not cure such failure, its taxable income and gains would be subject to tax at the Fund level, and distributions from earnings and profits would be taxable to shareholders as ordinary income.
While it is likely that regulatory laws surrounding ICOs will only be settled in court (perhaps even the Supreme Court), if ICO tokens are legally classified as securities, any exchange that wants to list those tokens needs to either register as a national securities exchange or operate under an exemption and set itself up as an alternative trading system (ATS).

As noted above, swap agreements typically are settled on a net basis, which means that the payment streams are netted out, with the Fund receiving or paying, as the case may be, only the net amount of the two payments. Payments may be made at the conclusion of a swap agreement or periodically during its term. The timing and character of any income, gain or loss recognized by a Fund on the payment or payments made or received on a swap will vary depending upon the terms of the particular swap. Swap agreements do not involve the delivery of securities or other underlying assets. Accordingly, the risk of loss with respect to swap agreements is limited to the net amount of payments that a Fund is contractually obligated to make. If the other party to a swap agreement defaults, a Fund’s risk of loss consists of the net amount of payments that such Fund is contractually entitled to receive, if any. The net amount of the excess, if any, of a Fund’s obligations over its entitlements with respect to each swap will be accrued on a daily basis and an amount of cash or liquid assets, having an aggregate NAV at least equal to such accrued excess will be earmarked or segregated by a Fund’s custodian (though, as noted above, in connection with CDS in which a Fund is a “seller”, the Fund will segregate or earmark cash or assets determined to be liquid, with a value at least equal to the full notional amount of the swap (minus any variation margin or amounts owed to the Fund under an offsetting transaction)). Inasmuch as these transactions are entered into for hedging purposes or are offset by earmarked or segregated cash or liquid assets, as permitted by applicable law, the Funds and their Advisor believe that these transactions do not constitute senior securities within the meaning of the 1940 Act, and, accordingly, will not treat them as being subject to a Fund’s borrowing restrictions.
COVERED BONDS. The Funds may invest in covered bonds, which are debt securities issued by banks or other credit institutions that are backed by both the issuing institution and underlying pool of assets that compose the bond (a “cover pool”). The cover pool for a covered bond is typically composed of residential or commercial mortgage loans or loans to public sector institutions. A covered bond may lose value if the credit rating of the issuing bank or credit institution is downgraded or the quality of the assets in the cover pool deteriorates.
A Parent Fund’s investment in its Subsidiary will potentially have the effect of accelerating the Fund’s recognition of income and causing its income to be treated as ordinary income, regardless of the character of such subsidiary’s income. If a net loss is realized by a Subsidiary, such loss is generally not available to offset the income earned by a Parent Fund. In addition, the net losses incurred during a taxable year by a Subsidiary cannot be carried forward by such Subsidiary to offset gains realized by it in subsequent taxable years. The Parent Funds will not receive any credit in respect of any non-U.S. tax borne by a Subsidiary.

On March 18, 2013, the Financial Crimes Enforcement Network (“FinCEN”) a bureau of the US Department of the Treasury, issued interpretive guidance relating to the application of the Bank Secrecy Act to distributing, exchanging and transmitting “virtual currencies.” More specifically, it determined that a user of virtual currencies (such as bitcoin) for its own account will not be considered a money service business (“MSB”) or be required to register, report and perform recordkeeping; however, an administrator or exchanger of virtual currency must be a registered money services business under FinCEN’s money transmitter regulations. As a result, Bitcoin Exchanges that deal with U.S. residents or otherwise fall under U.S. jurisdiction are required to obtain licenses and comply with FinCEN regulations. FinCEN released additional guidance clarifying that, under the facts presented, miners acting solely for their own benefit, software developers, hardware manufacturers, escrow service providers and investors in bitcoin would not be required to register with FinCEN on the basis of such activity alone, but that Bitcoin Exchanges, certain types of payment processors and convertible digital asset administrators would likely be required to register with FinCEN on the basis of the activities described in the October 2014 and August 2015 letters. FinCEN has also taken significant enforcement steps against companies alleged to have violated its regulations, including the assessment in July 2017 of a civil money penalty in excess of $110 million against BTC-e for alleged willful violation of U.S. anti-money laundering laws.
If anything, the problem seems to start with incredibly lax risk management at this exchange.  According to the OKEX statement, the risk management team 'immediately' contacted the client to reduce the size of the trade - begging the question - how did their risk management system allow the trade to occur in the first place?  On the bright side, something like that should be easy to fix, but it is indicative, potentially of how many simple things are being overlooked in the rush to make money from crypto trading.
Investment in mortgage-backed securities poses several risks, including among others, prepayment, market and credit risk. Prepayment risk reflects the risk that borrowers may prepay their mortgages faster than expected, thereby affecting the investment’s average life and perhaps its yield. Whether or not a mortgage loan is prepaid is almost entirely controlled by the borrower. Borrowers are most likely to exercise prepayment options at the time when it is least advantageous to investors, generally prepaying mortgages as interest rates fall, and slowing payments as interest rates rise. Besides the effect of prevailing interest rates, the rate of prepayment and refinancing of mortgages may also be affected by appreciation in home values, ease of the refinancing process and local economic conditions. Market risk reflects the risk that the price of a security may fluctuate over time. The price of mortgage-backed securities may be particularly sensitive to prevailing interest rates, the length of time the security is expected to be outstanding, and the liquidity of the issue. In a period of unstable interest rates, there may be decreased demand for certain types of mortgage-backed securities, and each Fund invested in such securities wishing to sell them may find it difficult to find a buyer, which may in turn decrease the price at which they may be sold. Credit risk reflects the risk that a Fund may not receive all or part of its principal because the issuer or credit enhancer has defaulted on its obligations. Obligations issued by U.S. government-related entities are guaranteed as to the payment of principal and interest, but are not backed by the full faith and credit of the U.S. government. The performance of private label mortgage-backed securities, issued by private institutions, is based on the financial health of those institutions. With respect to GNMA certificates, although GNMA guarantees timely payment even if homeowners delay or default, tracking the “pass-through” payments may, at times, be difficult.
Bitcoin has been on a tear this year, surging at least 1,000 percent in 2017. As the cryptocurrency gained even more attention from investors recently, the Commodity Futures Trading Commission announced on Friday that it would allow the CME and Cboe to launch bitcoin futures. The Cboe plans to launch on Dec. 10 and the CME intends to launch on Dec. 18.
  •   Intellectual property rights claims may adversely affect the operation of the Bitcoin Network. Third parties may assert intellectual property rights claims relating to the operation of the Bitcoin Network. Regardless of the merit of any intellectual property or other legal action, any threatened action that reduces confidence in the Bitcoin Network’s long-term viability or the ability of end-users to hold and transfer bitcoin may adversely affect the price of bitcoin and adversely affect the price of the Bitcoin Futures Contracts held by the Fund.

Any distribution of income that is attributable to (i) income received by a Fund in lieu of dividends with respect to securities on loan pursuant to a securities lending transaction or (ii) dividend income received by a Fund on securities it temporarily purchased from a counterparty pursuant to a repurchase agreement that is treated for U.S. federal income tax purposes as a loan by the Fund, will not constitute qualified dividend income to individual shareholders and will not be eligible for the dividends-received deduction for corporate shareholders.


•   Rolling Futures Contract Risk — The Fund will invest in and have exposure to bitcoin futures contracts and is subject to risks related to “rolling” such contracts. Rolling occurs when the Fund closes out of a futures contract as it nears its expiration and replaces it with a contract that has a later expiration. The Fund does not intend to hold futures contracts through expiration, but instead intends to “roll” its futures positions. When the market for these futures contracts is such that the prices are higher in the more distant delivery months than in the nearer delivery months, the sale during the course of the rolling process of the more nearby contract would take place at a price that is lower than the price of the more distant contract. This pattern of higher futures contract prices for longer expiration contracts is often referred to as “contango.” Alternatively, when the market for futures contracts is such that the prices are higher in the nearer months than in the more distant months, the sale during the course of the rolling process of the more nearby contract would take place at a price that is higher than the price of the more distant contract. This pattern of higher futures prices for shorter expiration futures contracts is referred to as “backwardation.” Extended periods of contango could cause significant losses for the Fund. The Advisor will utilize active management techniques to seek to mitigate the negative impact or, in certain cases, benefit from the contango or backwardation present in the various futures contract markets, but there can be no guarantee that it will be successful in doing so.
In addition, the securities of some foreign governments, companies and markets are less liquid, and may be more volatile, than comparable securities of domestic governments, companies and markets. Some foreign investments may be subject to brokerage commissions and fees that are higher than those applicable to U.S. investments. A Fund also may be affected by different settlement practices or delayed settlements in some foreign markets. Moreover, some foreign jurisdictions regulate and limit U.S. investments in the securities of certain issuers.
These are NOT linked to or related in any way, to the futures contracts that trade on the CME or CBOE.  Not every article I have read makes this clear.  So the bright side of this story is that the contracts listed and traded on U.S. exchanges were not involved.  That is encouraging from both a regulatory aspect and for the future potential growth of cryptocurrency linked products in the U.S.
I’m an elderly gentleman, closing in on 68 years of age. My son introduced me to Crypto in late 2012. After doing a lot of researching Btc I felt strongly that It had a lot of growth and potential ahead of it. So my son and I built my 1st rig and I started mining in January 2013, pulled $5,000 from my IRA and bought Btc at $13.44 and have never looked back since. The sweetest sound that I’ve ever heard was the clink of my 1st mined Bitcoin way back when. That was as satisfying a note as there ever was on any musical scale. Nothing but happy days ahead since. Don’t get me wrong, there have been bumps in this Crypto highway, the demise of the Silk Road, Mt Gox, DAO hack to name a few but as a HOLDer (holding on for the long duration) not a HODLer (hanging on for dear life) and not day trading, has rewarded me with quite a decent profit. It just takes a lot of patience (Sisu) and doing your research with due diligence. I have since invested in Ethereum (Dec 2015), Monero (Jan 2016) and lately Omisego (July 2017) all purchased from some of my profits from Btc to go along with my newly acquired free Bch and recently free Omg. I’m currently operating 3 rigs equipped with 6 gpus each. 2 mining Eth and 1 Monero for now, all of which will be re-evaluated after Metropolis kicks in to see which direction I go from here. So I ‘m back to doing more research in order to help with my next moves but I’ll always be a strong believer in Ethereum which is where I’ve made my money so far. HOLDing on to the rest for now. Btc $5,000-10,000, Eth $2,500- 5,000, Monero $200-400, Omg $100-1,000 no one ever really knows but MY research says yes and so far MY research has not proven me wrong. Bought Btc at $13.44, Eth at .80, Monero at .48, Omg at .43 Bch for free. No where to go but up for me. Just biding my time. It’s taken me over 4 and a half years to get here but I’ve made over $4,000,000 so far with just my original investment plus the cost of my rigs and I’m still sitting on a lot more. Taking a position and HOLDing is where the real profit is and it isn’t going to happen overnight. So if you want aggravation and ulcers go ahead and day trade, try and beat the Market I wish you luck but the real money comes with Research, HOLDing and Patience. Hope this advice helps because in the long run what it all comes down to, its just Eths, You and Me hopefully making the right decisions.
Disclosure: We are a professional and educational website for bitcoin servies that sometimes receives compensation from the companies whose products we review or discuss. We test each product thoroughly and are fully independent in our recommendations and information presented. We do no endorse or promote products which we do not believe in. Many hyperlinks contain promotional links which result in compensation for the website owner(s). Some links to products or services contain affiliate IDs. If you create an account and use a service after clicking a link, Bitcoin Futures Guide may receive commission. This commission comes at no charge to you and in many cases you get special deals or discounts from our links. We are in compliance with FTC regulations. Contact owner through web form if there are any issues or concerns and we will react as soon as possible.
JPMorgan Chase Bank, National Association, One Beacon Street, 19th Floor, Boston, MA 02108, acts as Administrator to the Funds pursuant to an administration agreement dated June 16, 2006, as amended from time to time. The Administrator provides the Funds with all required general administrative services, including, without limitation, office space, equipment, and personnel; clerical and general back office services; bookkeeping and internal accounting; the determination of NAVs; and the preparation and filing of all financial reports, and all other materials, except registration statements and proxy statements, required to be filed or furnished by the Funds under federal and state securities laws. Citi Fund Services Ohio, Inc. (“Citi”), located at 4400 Easton Commons, Suite 200, Columbus, OH 43219, an indirect wholly-owned subsidiary of Citibank N.A., provides regulatory administration services to the Trust (altogether, the “Regulatory Administrative Services”). For its services, Citi is paid a set fee allocated among each of the Funds.
Each Fund may invest in money market instruments, which short-term cash instruments that have a remaining maturity of 397 days or less and exhibit high credit profiles, or cash or cash equivalents such as other high credit quality, short-term fixed income or similar securities, including (i) money market funds, (ii) U.S. Treasury Bills, which are U.S. government securities that have initial maturities of one year or less, and are supported by the full faith and credit of the U.S. government, and (iii) Repurchase Agreements, which are contracts in which a seller of securities, usually U.S. government securities or other money market instruments, agrees to buy them back at a specified time and price. Repurchase agreements are primarily used by the Funds as a short-term investment vehicle for cash positions.
The Index Receipt Agent makes available through the NSCC on each Business Day, either immediately prior to the opening of business on the Exchange or the night before, the list of the names and the required number of shares of each Deposit Security to be included in the current Portfolio Deposit (based on information at the end of the previous Business Day) for each applicable Fund. Such Portfolio Deposit is applicable, subject to any adjustments as described below, in order to effect purchases of Creation Units of Shares of such Fund until the next-announced Portfolio Deposit composition is made available.
The Bitcoin Network’s functionality relies on the Internet. A broadly accepted and widely adopted decentralized network is necessary for a fully-functional blockchain network, such as the Bitcoin Network. Features of the Bitcoin Network, such as decentralization, open source protocol, and reliance on peer-to-peer connectivity, are essential to preserve the stability of the network and decrease the risk of fraud or cyber-attacks. A significant disruption of Internet connectivity affecting large numbers of users or geographic areas could impede the functionality of the Bitcoin Network and adversely affect a Fund. In addition to technical disruptions such as cyber-attacks, the potential elimination of the net neutrality regulations in the U.S. may have a negative impact on miners, Bitcoin Markets and the Bitcoin ecosystem. Any technical disruptions or regulatory limitations that affect Internet access may have an adverse effect on the Bitcoin Network, the price of bitcoin and the Bitcoin Instruments in which the Funds invest.
  •   Swap Agreements are agreements entered into primarily with major global financial institutions for a specified period ranging from a day to more than one year. In a standard “swap” transaction, two parties agree to exchange the return (or differentials in rates of return) earned or realized on particular predetermined investments or instruments.
You have to be the best story in the entire world of crypto currency that I have heard to date, and I have to say that you have got to be feeling about the best in your life! Congrats! I’m not anywhere near the same, but quite the opposite I might have to say. I’m learning as I go, and I have never been so dedicated to my success and I’m more interested in this as my possibly one chance to get to pay for the rest of my Mom’s mortgage and let her stop driving a school bus all to pay for a single signature that she was trying to get dinner for 7 as always and with 2&4 year old girls screaming and the stress that I now have as a little bit of motivation to help. Only one little signature from her husband and my step father, with no explanation, well, he’s passed on and the grieving process was not enough, she’s just been buried with a contract that she is the responsible person for the signature that 25 years later is a million dollar loan and the details are not my business but I’m told it has ballooned to be several million with the late fees and penalties… if you have any time to contact me please send me a message through Facebook or email. I just need a little more of a clear strategy and I just don’t have anyone to ask that has any level of success as you
The existence of market makers (e.g., Virtu Financial) refutes a common assertion about futures—that there‘s always a loser for every winner, that it’s a zero-sum game. It’s true that derivatives like stock options and futures are created in matched pairs—a long and a short contract. If two speculators own those two contracts the profits on one side are offset by losses on the other but market makers are not speculators. In general, they’re not betting on the direction of the market. They act as intermediaries, selling to buyers at the higher ask price and buying from sellers at the lower bid price— collecting the difference.
×