Now, if that margin-call does not get filled and the price continues to fall, then I'm making profits on my contract but nobody is paying for it since the counterparty who got margin-called didn't get the liquidation order filled. So what happens is that at settlement time of the contract, that unfilled liquidation loss to the system will be deducted from the profits of ALL traders before they are distributed.
One of the biggest issues for institutional investors is the fragmented nature of the market, requiring them to operate on several exchanges. Often, this forces them to come up with customized ways to deal with the limitations of each exchange — a time-consuming and frustrating exercise. Not only that, but this can lead to liquidity and slippage problems, as even small trades can consume liquidity and cause prices to slip.
(c) distribute with respect to each taxable year at least 90% of the sum of its investment company taxable income (as that term is defined in the Code without regard to the deduction for dividends paid—generally, taxable ordinary income and the excess, if any, of net short-term capital gains over net long-term capital losses) and net tax-exempt interest income, for such year.
When the Fund has an open futures contract position, it is subject to daily variation margin calls that could be substantial in the event of adverse price movements. If the Fund has insufficient cash to meet daily variation margin requirements, it might need to sell securities at a time when such sales are disadvantageous. Futures markets are highly volatile and the use of or exposure to futures contracts may increase volatility of the Fund’s NAV. Futures contracts are also subject to liquidity risk.
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.
Municipal notes with maturities of three years or less are usually given note ratings (designated SP-1 or SP-2) to distinguish more clearly the credit quality of notes as compared to bonds. Notes rated SP-1 have a very strong or strong capacity to pay principal and interest. Those issues determined to possess overwhelming safety characteristics are given the designation of SP-1+. Notes rated SP-2 have a satisfactory capacity to pay principal and interest.
  •   The technology is new and many of its uses may be untested. Blockchain technology is a new and developing technology protocol that is relatively untested and unregulated. The mechanics of using distributed ledger technology to transact in other types of assets, such as securities or derivatives, is less clear. Blockchain technology may never develop optimized transactional processes that lead to realized economic returns for any company in which the Fund invests.

Update 1st October 2018: The cryptocurrency market has been volatile as ever over the last 6 months. Unless you are a skilled trader, it is harder to make money in a bear market than in a bull market – and we have been in a bear market for some time now. Personally, I have stopped trading and I am now focussing on growing my portfolio passively using a cryptocurrency trading bot – you can find out more about this here.  If you are new to crypto, read on!
CCC/CC/C – Very highly speculative credit quality. In danger of defaulting on financial obligations. There is little difference between these three categories, although CC and C ratings are normally applied to obligations that are seen as highly likely to default, or subordinated to obligations rated in the CCC to B range. Obligations in respect of which default has not technically taken place but is considered inevitable may be rated in the C category.
Note: This Prospectus provides general U.S. federal income tax information only. Your investment in the Fund may have other tax implications. If you are investing through a tax-deferred retirement account, such as an individual retirement account (IRA), special tax rules apply. Please consult your tax advisor for detailed information about a Fund’s tax consequences for you. See “Taxation” in the SAI for more information.
A Fund may invest in exchange-traded funds that are organized as trusts. An exchange-traded trust is a pooled trust that invests in assets, including physical commodities, and issues shares that are traded on a securities exchange. When the pool of assets is fixed, exchange traded trusts are treated as transparent for U.S. federal income tax purposes, and thus, the Fund will be treated as holding its share of an exchange traded trust’s assets, and the Fund’s sale of its interest in an exchange-traded trust will be treated as a sale of the underlying assets, for purpose of determining whether the Fund meets the 90 percent gross income test described above . As with investments in commodities and similar assets investments in exchange traded trusts may generate non-qualifying income for purposes of this test. As a result, a Fund’s investments in exchange traded trusts can be limited by the Fund’s intention to qualify as a RIC, and can bear adversely on the Fund’s ability to so qualify.
Currently, Bitcoin futures have very high margin requirements. The Cboe requires 40% of the notional amount for maintenance margin, the CME requires 43%. Your broker will likely require more than that. The culprit behind these high requirements is Bitcoin’s high volatility—until that calms down the exchanges will protect themselves by requiring a bunch of up-front money. If you don’t come up with the money for a margin call they want to close out your position without leaving a negative balance.
Ultimately, if you want to make money with crypto you have a couple of options. The easiest thing to do is to build a diversified portfolio of carefully selected coins and then to simply wait a couple of years. However, this is not the most effective way to make mad money. If you want to truly crush it at crypto, you need access to truly knowledgable people.
Mass adoption of bitcoin will also require an accommodating regulatory environment. A lack of expansion in usage of bitcoin and the Bitcoin Blockchain could adversely affect the market for bitcoin and may have a negative impact on the performance of the Bitcoin Instruments and the performance of the Funds. Even if growth in bitcoin adoption continues in the near or medium-term, there is no assurance that bitcoin usage, or the market for Bitcoin Instruments, will continue to grow over the long-term. A contraction in use of bitcoin may result in increased volatility or a reduction in the price of bitcoin, as well as increased volatility or a reduction in the price of Bitcoin Derivatives, which could adversely impact the value of an investment in a Fund. Conversely, a rapid expansion in the use of bitcoin may result in rapid appreciation in the price of bitcoin, which could adversely impact the value of a Fund which takes a short position in bitcoin futures contracts.

risk of loss of the amount expected to be received under a swap agreement in the event of the default or bankruptcy of a swap agreement counterparty. If such a default occurs, a Fund will have contractual remedies pursuant to the swap agreements, but such remedies may be subject to bankruptcy and insolvency laws that could affect the Fund’s right as a creditor. The counterparty risk for cleared swaps is generally lower than for uncleared over-the-counter swaps because generally a clearing organization becomes substituted for each counterparty to a cleared swap agreement and, in effect, guarantees the parties’ performance under the contract as each party to a trade looks only to the clearing organization for performance of financial obligations. However, there can be no assurance that the clearing organization, or its members, will satisfy its obligations to a Fund. Upon entering into a cleared swap, a Fund may be required to deposit with the broker an amount of cash or cash equivalents in the range of approximately 3% to 6% of the notional amount for CDS on high yield debt issuers and 1% to 5% for CDS on investment grade debt issuers (this amount is subject to change by the clearing organization that clears the trade). This amount, known as “initial margin,” is in the nature of a performance bond or good faith deposit on the cleared swap and is returned to a Fund upon termination of the swap, assuming all contractual obligations have been satisfied. Subsequent payments, known as “variation margin” to and from the broker will be made daily as the price of the swap fluctuates, making the long and short position in the swap contract more or less valuable, a process known as “marking-to-market.” The premium (discount) payments are built into the daily price of the swap and thus are amortized through the variation margin. The variation margin payment also includes the daily portion of the periodic payment stream.

The table below shows a performance example of a Short ProShares Fund that has an investment objective to correspond to the inverse (-1x) of the daily performance of an index. In the chart below, areas shaded lighter represent those scenarios where a Short ProShares Fund will return the same or outperform (i.e., return more than) the index performance; conversely, areas shaded darker represent those scenarios where a Short ProShares Fund will underperform (i.e., return less than) the index performance.
•   Early Close/Late Close/Trading Halt Risk — An exchange or market may close early, close late or issue trading halts on specific securities, or the ability to trade certain securities or financial instruments may be restricted, which may disrupt the Fund’s creation and redemption process, potentially affect the price at which the Fund’s shares trade in the secondary market, and/or result in the Fund being unable to trade certain securities or financial instruments. In these circumstances, the Fund may be unable to rebalance its portfolio, may be unable to accurately price its investments and/or may incur substantial trading losses. If trading in the Fund’s shares halt, shareholders may be temporarily unable to trade shares of the Fund at an advantageous time or price.
You might buy in to your Ethereum position at $1000, you set your sell position $1300. Your sell order could take days, weeks, months, years or till the end of time to be filled. Once it has been filled, you then take that profit and you roll it over in to a new buy over at, say, $1100. Choosing good targets for your buy and sell orders is crucial if you want to be a successful swing trader but overall swing trading cryptocurrency is pretty easy – set your orders and then just wait.
•   Tax Risk — In order to qualify for the special tax treatment accorded a regulated investment company (“RIC”) and its shareholders, the Fund must derive at least 90% of its gross income for each taxable year from “qualifying income,” meet certain asset diversification tests at the end of each taxable quarter, and meet annual distribution requirements. The Fund’s pursuit of its investment strategies will potentially be limited by the Fund’s intention to qualify for such treatment and could adversely affect the Fund’s ability to so qualify. The Fund can make certain investments, the treatment of which for these purposes is unclear. If, in any year, the Fund were to fail to qualify for the special tax treatment accorded a RIC and its
Nothing contained herein is intended to be or to be construed as financial advice. Investors should discuss their individual circumstances with appropriate professionals before making any investment decisions. This information should not be construed as sales or marketing material or an offer or solicitation for the purchase or sale of any financial instrument, product or service.  
As an example: if you have Quarterlies contracts that you made profits on over the weekend, then this profit needs to be withheld because of the risk of socialised losses. By Friday, however, this profit is available to be withdrawn and the positions are all rebalanced. Technically this is not a "settlement", because if you are holding an open Quarterlies contract when the weekly settlement occurs, your position will remain open, it will just experience a step-up in cost-basis and the unrealised Pnl is applied, so that socialised losses can be handled.

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.

Note: This Prospectus provides general U.S. federal income tax information only. Your investment in the Fund may have other tax implications. If you are investing through a tax-deferred retirement account, such as an individual retirement account (IRA), special tax rules apply. Please consult your tax advisor for detailed information about a Fund’s tax consequences for you. See “Taxation” in the SAI for more information.
Source: MV Index Solutions GmbH (MVIS®). MVIS is a wholly owned subsidiary of Van Eck Associates Corporation. Data as of December 8, 2017 (synthesized data from BitMEX, OKCoin, CryptoFacilities, and BTCC which represents non-U.S. listed bitcoin futures trading on these exchanges). Not intended to be a forecast of future events, a guarantee of future results or investment advice. Current market conditions may not continue.  

Shares will be continuously offered for sale by the Trust through the Distributor only in Creation Units, as described below under “Purchase and Issuance of Creation Units.” Shares in less than Creation Units are not distributed by the Distributor. The Distributor also acts as agent for the Trust. The Distributor will deliver a Prospectus to persons purchasing Shares in Creation Units and will maintain records of both orders placed with it and confirmations of acceptance furnished by it. The Distributor is a broker-dealer registered under the 1934 Act and a member of the Financial Industry Regulatory Authority, Inc. The Distributor has no role in determining the investment policies of the Funds or which securities are to be purchased or sold by the Funds.
The Fund is an actively managed exchange traded fund. The Fund seeks to achieve its investment objective by investing substantially all of its assets in U.S. large capitalization equity securities and bitcoin futures contracts. The Fund is designed to benefit when the prices of U.S. large capitalization equity securities and bitcoin futures contracts increases. The Fund generally seeks to have 70% of the value of its portfolio invested in the equity securities of the 500 largest U.S. public companies and 30% of the value of its portfolio invested in bitcoin futures contracts. The Fund does not invest directly in bitcoin.
When a Fund purchases or sells a futures contract, or buys or sells an option thereon, the Fund “covers” its position. To cover its position, a Fund may enter into an offsetting position, earmark or segregate with its custodian bank or on the official books and records of the Fund cash or liquid instruments (marked-to-market on a daily basis) that, when added to any amounts deposited with a futures commission merchant as margin, are equal to the market value of the futures contract or otherwise “cover” its position. When required by law, a Fund will segregate liquid assets in an amount equal to the value of the Fund’s total assets committed to the consummation of such futures contracts. Obligations under futures contracts so covered will not be considered senior securities for purposes of a Fund’s investment restriction concerning senior securities.
The Advisor’s proxy voting policies and procedures (the “Guidelines”) are reasonably designed to maximize shareholder value and protect shareowner interests when voting proxies. The Advisor’s Brokerage Allocation and Proxy Voting Committee (the “Committee”) exercises and documents the Advisor’s responsibilities with regard to voting of client proxies. The Committee is composed of employees of the Advisor. The Proxy Committee reviews and monitors the effectiveness of the Guidelines.

Consistent with a client’s investment objective, the Advisor may enter into guarantee close agreements with certain brokers. In all such cases, the agreement calls for the execution price at least to match the closing price of the security. In some cases, depending upon the circumstances, the broker may obtain a price that is better than the closing price and which under the agreement provides additional benefits to clients. The Advisor will generally distribute such benefits pro rata to applicable client trades.
The concept of universal money that can be traded worldwide, which is surging in value and price every day is the most lucrative aspect for traders. At the very initial stages 1 bitcoin was traded at 0.003$, it was cheaper than 1 cent! The currency quickly surged in value to be worth many hundreds of US Dollars. As of today, 1 Bitcoin is equal to 9881 US Dollars.

You could imagine the spread going the other way, though. If everyone really was clamoring to short bitcoin, and if the futures offered a more convenient way to do it than the bitcoin exchanges, then you'd expect the short sellers to pay a premium to short via futures. Instead of selling a bitcoin at $18,000 today, they'd be willing to sell a synthetic bitcoin for $17,500, paying the spread to an arbitrageur who was willing to do the actual shorting for them. But the fact that the spread is mostly positive, and that bitcoin's price has been mostly going up, suggests that the demand has mostly been for synthetic long positions, not short.
Most swap agreements entered into by a Fund (but generally not CDS) calculate and settle the obligations of the parties to the agreement on a “net basis” with a single payment. Consequently, a Fund’s current obligations (or rights) under a swap agreement will generally be equal only to the net amount to be paid or received under the agreement based on the relative values of the positions held by each party to the agreement (the “net amount”). Other swap agreements, such as CDS, may require initial premium (discount) payments as well as periodic payments (receipts) related to the interest leg of the swap or to the default of the reference entity.
The Distribution and Service Plan is intended to permit the financing of a broad array of distribution-related activities and services, as well as shareholder services, for the benefit of investors. These activities and services are intended to make the Shares an attractive investment alternative, which may lead to increased assets, increased investment opportunities and diversification, and reduced per share operating expenses. There are currently no plans to impose distribution fees.
Commodity Swaps. Commodity swaps are used either as substitutes for owning a specific physical commodities or as a means of obtaining non-leveraged exposure in markets where a specific commodity is not available. Commodity swaps provide the Fund with the additional flexibility of gaining exposure to commodities by using the most cost-effective vehicle available.
Cryptocurrencies allow traders to diversify their investment portfolio, as their price is mainly determined by demand and supply; Their value has a low correlation to national economies or political scenarios. Once Bitcoin surpassed the price of gold in 2017, US markets introduced 2 ETFs on Bitcoin and drew more and more institutional money into the world of cryptocurrencies. In 2017, Indian PM Narendra Modi has announced the gradual replacement of paper currency with electronic currency; In March 2018, the Marshall Islands announced that they would be introducing a cryptocurrency to replace US dollars as their main currency; other central banks are investigating the adoption of blockchain-like technologies… in short cryptocurrencies are probably here to stay. A growing number of crypto investors all over the world have already discovered the benefits:

Currently there are a several digital asset trading platforms that provide investors with forms of derivative products such as futures, so one could estimate and synthesize the discrete futures curve from the averages of various curves. MVIS research used BitMEX, OKCoin, CryptoFacilities, and BTCC as sources, to construct and approximate bitcoin futures curve based on non-U.S. bitcoin futures trading on these exchanges.

•   Active Management Risk — The performance of actively managed funds reflects, in part, the ability of ProShare Advisors to select investments and make investment decisions that are suited to achieving the Fund’s investment objective. ProShare Advisors’ judgments about the Fund’s investments may prove to be incorrect. If the investments selected and strategies employed by ProShares Advisors fail to produce the intended results, the Fund may not achieve its investment objective and could underperform other funds with a similar investment objective and/or strategies.
As of May 2018, over 1,800 cryptocurrency specifications existed.[29] Within a cryptocurrency system, the safety, integrity and balance of ledgers is maintained by a community of mutually distrustful parties referred to as miners: who use their computers to help validate and timestamp transactions, adding them to the ledger in accordance with a particular timestamping scheme.[16]
A key attribute of a futures market is how its contract’s prices vary by expiration date. The succession of futures prices over time is called the “term structure”. If supply is stable (no seasonality or shortages) then typically futures prices will increase with expirations further in the future. This term structure configuration is called “contango” and it accounts for the fact that carry costs (e.g., time value of money) and profit expectations increase with time. Unless there are big changes in interest rates or the way that Bitcoin exchanges work I expect the level of contango in the Bitcoin futures term structure to be small. Bitcoins don’t cost much to hodl (once you have your hardware wallet) and there’s no apparent seasonality. The chart below from VIX Central shows a typical Bitcoin term structure (click on chart to get current data):