Jump up ^ Iansiti, Marco; Lakhani, Karim R. (January 2017). "The Truth About Blockchain". Harvard Business Review. Harvard University. Archived from the original on 18 January 2017. Retrieved 17 January 2017. The technology at the heart of bitcoin and other virtual currencies, blockchain is an open, distributed ledger that can record transactions between two parties efficiently and in a verifiable and permanent way.
If SupermegahedgefundX can offset any potential losses with futures trading, then maybe it will be more willing to buy bitcoin – although why it would allow its potential gains to be reduced with the same futures trade is beyond me. And, why hold the bitcoin when you can get similar profits with less initial outlay just by trading the synthetic derivatives?
•   Interest Rate Risk — The Fund intends to invest a substantial portion of its assets in U.S. Treasury securities and is subject to interest rate risk. Interest rate risk is the risk that debt securities may fluctuate in value due to changes in interest rates. Commonly, investments subject to interest rate risk will decrease in value when interest rates rise and increase in value when interest rates decline. The value of securities with longer maturities may fluctuate more in response to interest rate changes than securities with shorter maturities. A wide variety of factors can cause interest rates to rise (e.g., central bank monetary policies, inflation rates, general economic conditions, etc.). This risk may be elevated under current economic conditions because interest rates are at historically low levels. Returns on investment in debt instruments may trail the returns on other investment options, including investments in equity securities.
Short Term USD Emerging Markets Bond ETF; Crude Oil Strategy ETF; Inflation Expectations ETF; CDS Short North American HY Credit ETF and Short or Ultra Fixed Income ProShares Funds    2:30 p.m. (3:00 p.m., if transmitted by mail; except 4:00 p.m., if transmitted by mail on behalf of Short High Yield or Ultra High Yield) in order to receive that day’s closing NAV per Share
* The “Fund Complex” consists of all operational registered investment companies under the 1940 Act that are advised by ProShare Advisors LLC and any registered investment companies that have an investment adviser that is an affiliated person of ProShare Advisors LLC. Investment companies that are non-operational (and therefore, not publicly offered) as of the date of this SAI are excluded from these figures.
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.
The Funds may enter into forward contracts to attempt to gain exposure to an index or asset without actually purchasing such asset, or to hedge a position. Forward contracts are two-party contracts pursuant to which one party agrees to pay the counterparty a fixed price for an agreed-upon amount of an underlying asset or the cash value of the underlying asset at an agreed-upon date. 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 forward contracts. Obligations under forward contracts so covered will not be considered senior securities for purposes of a Fund’s investment restriction concerning senior securities. Forward contracts that cannot be terminated in the ordinary course of business within seven days at approximately the amount at which a Fund has valued the asset may be considered to be illiquid for purposes of the Fund’s illiquid investment limitations. A Fund will not enter into a forward contract unless the Advisor believes that the other party to the transaction is creditworthy. The counterparty to any forward contract will typically be a major, global financial institution. A Fund bears the risk of loss of the amount expected to be received under a forward contract in the event of the default or bankruptcy of a counterparty. If such a default occurs, a Fund will have contractual remedies pursuant to the forward contract, but such remedies may be subject to bankruptcy and insolvency laws, which could affect the Fund’s rights as a creditor. 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 may each invest in forward contracts where commodities are the underlying asset.
The Fund will issue and redeem shares only to Authorized Participants (typically, broker-dealers) in exchange for the deposit or delivery of a basket of assets (securities and/or cash) in large blocks, known as Creation Units, each of which is comprised of [                ] shares. Retail investors may only purchase and sell Fund shares on a national securities exchange through a broker-dealer. Because the Fund’s shares trade at market prices rather than NAV, shares may trade at a price greater than NAV (a premium) or less than NAV (a discount).
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,
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.

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.
Fundamental securities analysis is not used by ProShare Advisors in seeking to correlate a Matching Fund’s investment returns with its index. Rather, ProShare Advisors primarily uses a passive or mathematical approach to determine the investments a Matching Fund makes and techniques it employs. While ProShare Advisors attempts to minimize any “tracking error,” certain factors tend to cause a Matching Fund’s investment results to vary from a perfect correlation to its index, as applicable. See “Special Considerations” below for additional details.
A distribution will be treated as paid on December 31 of a calendar year if it is declared by a Fund in October, November or December of that year with a record date in such a month and is paid by the Fund during January of the following year. Such distributions will be taxable to shareholders in the calendar year in which the distributions are declared, rather than the calendar year in which the distributions are received.
A Fund’s current obligations under most swap agreements (total return swaps, equity/index swaps, interest rate swaps) will be accrued daily (offset against any amounts owed to the Fund) and any accrued but unpaid net amounts owed to a swap counterparty will be covered by segregating or earmarking cash or other assets determined to be liquid, but typically no payments will be made until the settlement date. In connection with CDS in which a Fund is a “buyer”, the Fund will segregate or earmark cash or assets determined to be liquid by the Advisor, with a value at least equal to the Fund’s maximum potential exposure under the swap (e.g., any accrued but unpaid net amounts owed by the Fund to any clearinghouse counterparty). In connection with CDS in which a Fund is a “seller”, however, the Fund will segregate or earmark cash or assets determined to be liquid by the Advisor, 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 cleared transaction). This segregation or earmarking is intended to ensure that a Fund has assets available to satisfy its potential obligations with respect to the transaction. Each Fund reserves the right to modify its asset segregation policies in the future, including modifications to comply with any changes in the positions articulated by the SEC or its staff regarding asset segregation. Swap agreements that cannot be terminated in the ordinary course of business within seven days at approximately the amount a Fund has valued the asset may be considered to be illiquid for purposes of the Fund’s illiquid investment limitations.
On top of that, the cryptocurrency market travels at lightspeed compared to other markets. New coins enter the market on a daily basis (in 2016, there were about 550 different coins, today there are about 1,500), and each one has news every day. I’m not doubting your ability to consume and analyze news, but that level of information bombardment will always be more effectively consumed as a group. In these communities, you’ll see members link news and relevant articles about coins you’ve invested in and coins you’ve never heard of. The community will definitely expand your knowledge much faster than doing it all yourself.
You can find additional information about the Funds in the current Statement of Additional Information (“SAI”), dated October 1, 2017, as may be amended from time to time, which has been filed electronically with the Securities and Exchange Commission (“SEC”) and is incorporated by reference into, and is legally a part of, this Prospectus. A copy of the SAI is available, free of charge, online at ProShares.com. You may also receive a free copy of the SAI or make inquiries to ProShares by writing us at the address set forth above or calling us toll-free at the telephone number set forth above.
The Board has established an Audit Committee to assist the Board in performing oversight responsibilities. The Audit Committee is composed exclusively of Independent Trustees. Currently, the Audit Committee is composed of Messrs. Reynolds, Wachs and Fertig. Among other things, the Audit Committee makes recommendations to the full Board of Trustees with respect to the engagement of an independent registered public accounting firm and reviews with the independent registered public accounting firm the plan and results of the internal controls, audit engagement and matters having a material effect on the Trust’s financial operations. During the past fiscal year, the Audit Committee met five times, and the Board of Trustees met four times.

The Advisor and its affiliated persons may come into possession from time to time of material nonpublic and other confidential information about companies which, if disclosed, might affect an investor’s decision to buy, sell, or hold a security. Under applicable law, the Advisor and its affiliated persons would be prohibited from improperly disclosing or using this information for their personal benefit or for the benefit of any person, regardless of whether the person is a client of the Advisor. Accordingly, should the Advisor or any affiliated person come into possession of material nonpublic or other confidential information with respect to any company, the Advisor and its affiliated persons will have no responsibility or liability for failing to disclose the information to clients as a result of following its policies and procedures designed to comply with applicable law. However, each Matching Fund is managed using what is commonly referred to as an index strategy in an attempt to simulate either the daily movement or a multiple, the inverse or an inverse multiple of the daily movement of its index, and the use of such index strategies may reduce conflicts of interest compared to funds using non-index investment strategies.

The Global Listed Private Equity ETF and the Short Term USD Emerging Markets Bond ETF each pay ProShare Advisors a fee at an annualized rate based on its average daily net assets of 0.50%. The Inflation Expectations ETF pays ProShare Advisors a fee at an annualized rate based on its average daily net assets of 0.55%. The CDS Short North American HY Credit ETF pays ProShare Advisors a fee at an annualized rate based on its average daily net assets of 0.65%. ProShare Advisors manages the investment and the reinvestment of the assets of each of the Funds in accordance with the investment objectives, policies, and limitations of the Fund, subject to the general supervision and control of the Trustees and the Officers of the Trust. ProShare Advisors bears all costs associated with providing these advisory services. Except for the Morningstar Alternatives Solution ETF, ProShare Advisors has contractually agreed to waive investment advisory and management services fees and to reimburse other expenses (exclusive of transaction costs,

Since you bought 68.4246 BTC, you want to short 68 BTC and lock in the USD value. You will have 0.4246 BTC left over, which will give you a slightly long bias. You can either fix this by only buying 68 BTC in step 1 or by giving yourself more short exposure by shorting 69 BTC. Remember that CryptoFacilities contracts are inverse (which allow locking in USD) and are denominated in BTC