Ripple is an open-source digital payment network, and it’s already being used by some of the world’s largest banks – such as the bank of Tokyo and Santandar. XRP has shown significant potential recently and has been turning a lot of heads. Ripple aims to become the go-to tool for banks on a global scale, while still giving an exciting investment opportunity to crypto advocates and solo investors. Ripple has many haters and I’ve been burned by it myself in the past – I sold 30,000 XRP at 20 cents… painful. Still, I did buy them at 3 cents a pop, so it could have been worse. I hold 10,000 XRP today and will hold until 2022.
  •   Futures Position Limit Risk — Limits on the amount of futures any one entity can hold may negatively impact the Fund’s ability to meet its investment objective if such limits are reached and exceptions to such limits are not granted. Currently the position limits for bitcoin futures contracts are much lower than they are for most other futures contracts.
For purposes of the diversification test described in subparagraph (b) above, the term “outstanding voting securities of such issuer” will include the equity securities of a qualified publicly traded partnership. Also, for purposes of the diversification test in (b) above, the identification of the issuer (or, in some cases, issuers) of a particular Fund investment can depend on the terms and conditions of that investment. In some cases, identification of the issuer (or issuers) is uncertain under current law, and an adverse determination or future guidance by the IRS with respect to issuer identification for a particular type of investment may adversely affect the Fund’s ability to meet the diversification test in (b) above.
In February 2014 the world's largest bitcoin exchange, Mt. Gox, declared bankruptcy. The company stated that it had lost nearly $473 million of their customers' bitcoins likely due to theft. This was equivalent to approximately 750,000 bitcoins, or about 7% of all the bitcoins in existence. The price of a bitcoin fell from a high of about $1,160 in December to under $400 in February.[85]
Institutional-tier offerings such as those detailed above are seen as much-needed catalysts to stimulate the flow of institutional money into the market, offering heavyweight financial players a less-risky way to buy into assets like bitcoin. For the same reason, custody services like those offered by Coinbase, BitGo and others are necessary for safely storing and managing these investments as well.

Institutional-tier offerings such as those detailed above are seen as much-needed catalysts to stimulate the flow of institutional money into the market, offering heavyweight financial players a less-risky way to buy into assets like bitcoin. For the same reason, custody services like those offered by Coinbase, BitGo and others are necessary for safely storing and managing these investments as well.
reduce the amount of the Fund’s borrowings to the extent necessary to meet this 300% coverage requirement. Maintenance of this percentage limitation may result in the sale of portfolio securities at a time when investment considerations would not favor such sale. In addition to the foregoing, the Funds are authorized to borrow money as a temporary measure for extraordinary or emergency purposes in amounts not in excess of 5% of the value of each Fund’s total assets. This borrowing is not subject to the foregoing 300% asset coverage requirement. The Funds are authorized to pledge portfolio securities as ProShare Advisors deems appropriate in connection with any borrowings.
Altcoins is the general term associated with the cryptocurrencies launched after Bitcoin’s success. At first, these were mere copies mimicking the original Bitcoin. Today, there are over 1,000 of these, and the list just keeps growing. Most crypto coins are launched following an ICO (Initial Coin Offering – a form of crowdfunding) in which the developers raise cash by offering a limited number of initial coins to finance technological development. So far, besides the list below, we can find names, such as Namecoin, Peercoin, Bytecoin, Deutsche eMark, Novacoin, Cryptogenic Bullion, Quark, DarkCoin and Mangocoinz (for smartphones).
When the Advisor determines that the price of a security is not readily available or deems the price unreliable, it may, in good faith, establish a fair value for that security in accordance with procedures established by and under the general supervision and responsibility of the Trust’s Board of Trustees. The use of a fair valuation method may be appropriate if, for example, market quotations do not accurately reflect fair value for an investment, an investment’s value has been materially affected by events occurring after the close of the exchange or market on which the investment is principally traded (for example, a foreign exchange or market), a trading halt closes an exchange or market early, or other events result in an exchange or market delaying its normal close.

As discussed in more detail below, FATCA (as defined below) generally imposes a reporting and 30% withholding tax regime with respect to certain U.S.-source income (“withholdable payments”) paid to “foreign financial institutions” and certain other non-U.S. entities when those entities fail to satisfy the applicable account documentation, information reporting, withholding, registration, certification and/or other requirements applicable to their status under FATCA. A Subsidiary will be subject to the 30% withholding tax in respect of any withholdable payment it receives if it fails to satisfy these requirements, as may be applicable to the Subsidiary. Each Subsidiary expects to satisfy these requirements, as may be applicable to it, so as to avoid this additional 30% withholding. See “Certain Additional Reporting and Withholding Requirements” below for more discussion of these rules.
Don’t be greedy. No one ever lost money taking a profit. As a coin begins to grow, the greed inside us grows along with it. If a coin increases by 30%, why not consider taking profit? Even if goals are set to 40% or 50%, you should at least pull out some of the profit on the way up in case a coin doesn’t reach the goal. If you wait too long or try to get out at a higher point, you risk losing profit you already earned or even turning that profit into a loss. Get into the habit of taking profits and scouting for re-entry if you want to continue reaping potential profits.
Elsewhere, here is the story of, which "has raised about $700 million and counting" by selling EOS tokens that it says "do not have any rights, uses, purpose, attributes, functionalities or features." is using the money to build "a new blockchain architecture designed to enable vertical and horizontal scaling of decentralized applications," as its white paper explains, and the white paper also includes a disclaimer in bold capitals:
There are also purely technical elements to consider. For example, technological advancement in cryptocurrencies such as bitcoin result in high up-front costs to miners in the form of specialized hardware and software.[105] Cryptocurrency transactions are normally irreversible after a number of blocks confirm the transaction. Additionally, cryptocurrency can be permanently lost from local storage due to malware or data loss. This can also happen through the destruction of the physical media, effectively removing lost cryptocurrencies forever from their markets.[106]
The Registrant (also, the “Trust”) is organized as a Delaware business trust is operated pursuant to an Amended and Restated Declaration of Trust, dated December 13, 2010 (the “Declaration of Trust”), that permits the Registrant to indemnify every person who is, or has been, a Trustee, officer, employee or agent of the Trust, including persons who serve at the request of the Trust as directors, trustees, officers, employees or agents of another organization in which the Trust has an interest as a shareholder, creditor or otherwise (hereinafter referred to as a “Covered Person”), shall be indemnified by the Trust to the fullest extent permitted by law against liability and against all expenses reasonably incurred or paid by him in connection with any claim, action, suit or proceeding in which he becomes involved as a party or otherwise by virtue of his being or having been such a Trustee, director, officer, employee or agent and against amounts paid or incurred by him in settlement thereof. This indemnification is subject to the following conditions:
The CME considers a hard fork of the Bitcoin Blockchain where both forks continue to be actively mined and traded but may not be fungible with each other, as an unusual and extreme circumstance. As such, CME provides that Crypto Facilities Ltd. (CME’s administrator) shall be responsible for recommending the necessary actions and responses to ensure the relevance and integrity of the Bitcoin Pricing Products.

Elaborating a bit on the concept of Cryptocurrency and the blockchain effect before we move onto the central theme. As put in words by Daniel Gasteiger on the topic ‘Blockchain Demystified’ at TEDxLausanne,‘A blockchain is nothing but a database, a database that is public, therefore not owned by anybody. Distributed hence not stored centrally on one computer but on many computers across the world. Constantly synchronized to keep the transactions up to date and secured overall by the art of cryptography to make it tamper proof and hacker proof. These four features make this technology exceptional.’ Daniel’s strong belief in the solidarity of the concept of Cryptocurrency motivated him to leave his full-fledged career of 20 years in financial services to focus on the concept of Blockchain. Looking to know more about how to formulate Cryptocurrency strategies? Read our blog on Cryptocurrencies Trading Strategy With Data Extraction Technique. 
If this sounds confusing to you, then don't worry. In practice, these futures contracts are just like buying and selling spot market value. Just focus on the price of the contract and whether you are LONG or SHORT. If you're long and the futures price goes up, the BTC value of the contract goes up and you have bought an asset that is increasing in value.
MSCI ® is a registered trademark of Morgan Stanley & Company, Inc. The Funds are not sponsored, endorsed, sold or promoted by Morgan Stanley or any affiliate of Morgan Stanley. Neither Morgan Stanley, any of its affiliates nor any other party involved in making or compiling the MSCI Indexes makes any representation or warranty, express or implied, to the owners of the Funds or any member of the public regarding the advisability of investing in securities generally or in the Funds particularly or the ability of the MSCI Indexes to track general stock market performance. Morgan Stanley is the licensor of certain trademarks, service marks and trade names of MSCI and of the MSCI Indexes, which are determined, composed and calculated by Morgan Stanley without regard to the Funds. Morgan Stanley has no obligation to take the needs of the Funds into consideration in determining, composing or calculating the MSCI Indexes. Morgan Stanley is not responsible for and has not participated in the determination of the prices and amount of Shares of the Funds or the timing of the issuance or sale of such Shares. Neither Morgan Stanley, any of its affiliates nor any other party involved in making or compiling the MSCI Indexes has any obligation or liability to owners of the Funds in connection with the administration of the Funds, or the marketing or trading of Shares of the Funds. Although Morgan Stanley obtains information for inclusion in or for use in the calculation of the MSCI Indexes from sources which Morgan Stanley considers reliable, neither Morgan Stanley, any of its affiliates nor any other party involved in making or compiling the MSCI Indexes guarantees the accuracy and or the completeness of the MSCI Indexes or any data included therein. Neither Morgan Stanley, any of its affiliates nor any other party involved in making or compiling the MSCI Indexes makes any warranty, express or implied, as to results to be obtained by the Funds,
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.

An Authorized Participant who exchanges securities for Creation Units generally will recognize a gain or a loss. The gain or loss will be equal to the difference between the market value of the Creation Units at the time and the sum of the exchanger’s aggregate basis in the securities surrendered plus the amount of cash paid for such Creation Units. An Authorized Participant who redeems Creation Units will generally recognize a gain or loss equal to the difference between the exchanger’s basis in the Creation Units and the sum of the aggregate market value of any securities received plus the amount of any cash received for such Creation Units. The IRS, however, may assert that a loss realized upon an exchange of securities for Creation Units cannot be deducted currently under the rules governing “wash sales,” or on the basis that there has been no significant change in economic position. Persons purchasing or redeeming Creation Units should consult their own tax advisors with respect to the tax treatment of any creation or redemption transaction.
  •   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.

Bitcoin isn’t just an unknown commodity: it will always be an unknown commodity. Bitcoin doesn’t have the fundamentals that investors typically use to analyze an asset. Most stocks or bonds can be analyzed based on some trait of the instrument. Stocks have P/E ratios and dividends, for example, while bonds have return percentages. Bitcoin has no fundamentals that can be easily measured.

Upon a sale, exchange or other disposition of shares of a Fund, a shareholder will generally realize a taxable gain or loss depending upon his or her basis in the shares. A gain or loss will be treated as capital gain or loss if the shares are capital assets in the shareholder’s hands, and generally will be long-term or short-term capital gain or loss depending upon the shareholder’s holding period for the shares. Any loss realized on a sale, exchange or other disposition will be disallowed to the extent the shares disposed of are replaced (including through reinvestment of dividends) within a period of 61 days beginning 30 days before and ending 30 days after the shares are disposed of. In such a case, the basis of the shares acquired will be adjusted to reflect the disallowed loss. Any loss realized by a shareholder on the disposition of a Fund’s Shares held by the shareholder for six months or less will be treated for tax purposes as a long-term capital loss to the extent of any distributions of Capital Gain Dividends received or treated as having been received by the shareholder with respect to such shares.

Assume there is 0 contracts open and 2 traders, and a new futures contract expiring in 7 days opens. You can "create" a contract by putting a limit sell order in the orderbook at a given price. If someone market buys that limit order, an open contract is created between you and the other trader. This is how you can go from a position of 0 to a negative exposure just by selling a contract.
Investments by a Fund in a wholly-owned foreign subsidiary, debt obligations issued or purchased at a discount and certain derivative instruments could cause the Fund to recognize taxable income in excess of the cash generated by such investments, potentially requiring the Fund to dispose of investments (including when otherwise disadvantageous to do so) in order to meet
The Fund generally does not expect to invest directly in futures contracts, option contracts and swap agreements (“Bitcoin Instruments”). The Fund expects to gain exposure to these investments by investing a portion of its assets in the ProShares Cayman Short Bitcoin Futures Strategy Portfolio, a wholly-owned subsidiary of the Fund organized under the laws of the Cayman Islands (the “Subsidiary”). The Subsidiary is advised by ProShare Advisors, the Fund’s investment advisor, and invests directly in Bitcoin Instruments. Unlike the Fund, the Subsidiary is not an investment company registered under the 1940 Act. The Fund’s investment in the Subsidiary is intended to provide the Fund with exposure to commodity markets related to bitcoin in accordance with applicable rules and regulations. The Fund will invest up to 25% of its total assets in the Subsidiary. Except as otherwise noted, references to the Fund’s investment strategies and risks include the investment strategies and risks of the Subsidiary.

•   ETN Risk — The Fund is likely to obtain substantial exposure to the price movements of bitcoin by holding ETNs that provide exposure to the price of bitcoin. ETNs are unsecured, unsubordinated debt securities of an issuer that are listed and traded on a U.S. stock exchange. An ETN’s returns are generally linked to the performance of a particular market benchmark or strategy minus applicable fees. ETNs do not provide principal protection and may or may not make periodic coupon payments. ETNs are subject to credit risk, which is the risk that the issuer cannot pay interest or repay principal when it is due. Additionally, the value of an ETN may be influenced by time to maturity, level of supply and demand, volatility and lack of liquidity in the underlying market (e.g., the commodities market), changes in interest rates or the issuer’s credit rating, and other economic, legal, political or geographic events. The value of an investment in an ETN may be impacted by fees associated with the ETN. Structural aspects of the ETNs may impact their market value. Trading by affiliates of an ETN sponsor may create conflicts of interest. The issuer of an ETN may be unable to meet its obligations. The potential impact of Bitcoin Network forks on the value of a bitcoin ETN is unclear. ETNs issued by special purpose vehicles may include greater risk. ETNs are subject to risks associated with the underlying asset.
As for why you should buy a put option instead of the asset itself, the answer is simple. By buying the asset itself, you can never profit from falling prices. With put options you can, simply because their value rises as the price of the underlying stock is falling. In addition to this feature, they offer the same kind of potential for leverage that calls options do, as described above. The price of put options is calculated in a similar manner, but with the important difference being that the intrinsic value is calculated as a predetermined price of the option minus the current market price of the asset – not the other way round as is the case for call options.