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):

The Funds are exchange-traded funds (“ETFs”) and the shares of each Fund (“Shares”) are listed on NYSE Arca, The NASDAQ Stock Market or the Bats BZX Exchange, Inc., (each, an “Exchange”). The Shares trade on the relevant Exchange at market prices that may differ to some degree from the Shares’ NAVs. Each Fund issues and redeems Shares on a continuous basis at NAV in large, specified numbers of Shares called “Creation Units.” Creation Units of the Funds are issued and redeemed in-kind for securities and an amount of cash or entirely in cash, in each case at the discretion of ProShare Advisors LLC (the “Advisor” or “ProShare Advisors”). Except when aggregated in Creation Units, Shares cannot be purchased from and are not redeemable securities of the Funds. Retail investors, therefore, generally will not be able to purchase or redeem the Shares directly. Rather, most retail investors will purchase and sell Shares in the secondary market with the assistance of a broker. Reference is made to the Prospectus for a discussion of the investment objectives and policies of each of the Funds. The discussion below supplements, and should be read in conjunction with, the Prospectus. Portfolio management is provided to the Funds by ProShare Advisors, a Maryland limited liability company with offices at 7501 Wisconsin Avenue, Suite 1000E, Bethesda, MD 20814.
“Bitcoin Improvement Proposals”, or “BIPs.” If accepted by a sufficient number of miners, BIPs may result in substantial changes to the Bitcoin Network, including changes that result in “forks.” Such changes may influence the price of Bitcoin and Bitcoin Futures Contracts. In particular, it is possible that the price of the Bitcoin Futures Contracts subsequent to a “fork” may be linked to the price of bitcoin on only one of the resulting Bitcoin Networks, rather than the aggregate price of bitcoin on all resulting Bitcoin Networks. The CBOE Futures Exchange (“CFE”) and Chicago Mercantile Exchange (“CME”) have announced different protocols for addressing forks.
  •   Inverse Correlation Risk — Since a portion of the Fund’s assets are invested in short positions in bitcoin futures contracts, the Fund will likely decline in value when the price of bitcoin futures contracts goes up (unless such losses are offset by gains in the value of the Fund’s positions in other investments), a result that is the opposite from the results of taking long positions in bitcoin futures contracts.
Paul Krugman, Nobel Memorial Prize in Economic Sciences winner does not like bitcoin, has repeated numerous times that it is a bubble that will not last[110] and links it to Tulip mania.[111] American business magnate Warren Buffett thinks that cryptocurrency will come to a bad ending.[112] In October 2017, BlackRock CEO Laurence D. Fink called bitcoin an 'index of money laundering'.[113] "Bitcoin just shows you how much demand for money laundering there is in the world," he said.

The exceptions to withholding for Capital Gain Dividends and short-term capital gain dividends do not apply to (A) distributions to an individual foreign shareholder who is present in the United States for a period or periods aggregating 183 days or more during the year of the distribution and (B) distributions attributable to gain that is treated as effectively connected with the conduct by the foreign shareholder of a trade or business within the United States under special rules regarding the disposition of U.S. real property interests as described below. The exception to withholding for interest-related dividends does not apply to distributions to a foreign shareholder (A) that has not provided a satisfactory statement that the beneficial owner is not a U.S. person, (B) to the extent that the dividend is attributable to certain interest on an obligation if the foreign shareholder is the issuer or is a 10% shareholder of the issuer, (C) that is within certain foreign countries that have inadequate information exchange with the United States, or (D) to the extent the dividend is attributable to interest paid by a person that is a related person of the foreign shareholder and the foreign shareholder is a controlled foreign corporation. If a Fund invests in a RIC that pays Capital Gain Dividends, short-term capital gain dividends or interest-related dividends to the Fund, such distributions retain their character as not subject to withholding if properly reported when paid by the Fund to foreign shareholders. A Fund is permitted to report such part of its dividends as interest-related and/or short-term capital gain dividends as are eligible, but is not required to do so.
Total Return Swaps. Total return swaps are used either as substitutes for owning the physical securities that comprise a given market index or as a means of obtaining non-leveraged exposure in markets where securities are not available. “Total return” refers to the payment (or receipt) of an index’s total return, which is then exchanged for the receipt (or payment) of a floating interest rate. Total return swaps provide the Fund with the additional flexibility of gaining exposure to a market or sector index by using the most cost-effective vehicle available.
As a general matter, the Short ProShares Funds, the CDS Short North American HY Credit ETF and the Short Bitcoin Futures Strategy ETF respond differently in response to market conditions than the Matching ProShares Funds, the Ultra ProShares Funds, the Managed Futures Strategy ETF or the Crude Oil Strategy ETF. The terms “favorable market conditions” and “adverse market conditions,” as used in this SAI, are Fund-specific.
The Trust reserves the absolute right to reject a purchase order transmitted to it by the Distributor in respect of any Fund if (a) the purchaser or group of purchasers, upon obtaining the Shares ordered, would own 80% or more of the currently outstanding Shares of any Fund; (b) the Deposit Securities delivered are not as specified by ProShare Advisors and ProShare Advisors has not consented to acceptance of an in-kind deposit that varies from the designated Deposit Securities; (c) acceptance of the purchase transaction order would have certain adverse tax consequences to the Fund; (d) the acceptance of the purchase transaction order would, in the opinion of counsel, be unlawful; (e) the acceptance of the purchase order transaction would otherwise, in the discretion of the Trust or ProShare Advisors, have an adverse effect on the Trust or the rights of beneficial owners; (f) the value of a Cash Purchase Amount, or the value of the Balancing Amount to accompany an in-kind deposit, exceeds a purchase authorization limit extended to an Authorized Participant by the Custodian and the Authorized Participant has not deposited an amount in excess of such purchase authorization with the Custodian prior to the relevant cut-off time for the Fund on the transmittal date; or (g) in the event that circumstances outside the control of the Trust, the Distributor and ProShare Advisors make it impractical to process purchase orders. The Trust shall notify a prospective purchaser of its rejection of the order of such person. The Trust and the Distributor are under no duty, however, to give notification of any defects or irregularities in the delivery of purchase transaction orders nor shall either of them incur any liability for the failure to give any such notification.
While cryptocurrencies are digital currencies that are managed through advanced encryption techniques, many governments have taken a cautious approach toward them, fearing their lack of central control and the effects they could have on financial security.[99] Regulators in several countries have warned against cryptocurrency and some have taken concrete regulatory measures to dissuade users.[100] Additionally, many banks do not offer services for cryptocurrencies and can refuse to offer services to virtual-currency companies.[101] Gareth Murphy, a senior central banking officer has stated "widespread use [of cryptocurrency] would also make it more difficult for statistical agencies to gather data on economic activity, which are used by governments to steer the economy". He cautioned that virtual currencies pose a new challenge to central banks' control over the important functions of monetary and exchange rate policy.[102] While traditional financial products have strong consumer protections in place, there is no intermediary with the power to limit consumer losses if bitcoins are lost or stolen.[103] One of the features cryptocurrency lacks in comparison to credit cards, for example, is consumer protection against fraud, such as chargebacks.
  •   The bitcoin exchanges on which bitcoin trades are relatively new and, in most cases, largely unregulated and, therefore, may be more exposed to fraud and security breaches than established, regulated exchanges for other products. Over the past several years, a number of Bitcoin Exchanges have been closed due to fraud, failure, security breaches or governmental regulations. The nature of the assets held at Bitcoin Exchanges make them appealing targets for hackers and a number of Bitcoin Exchanges have been victims of cybercrimes. No Bitcoin Exchange is immune from these risks. Fraudulent activity can increase volatility and have an adverse effect on the price of bitcoin, the general acceptance of bitcoin as an investment or means of currency and could have a negative impact on the bitcoin futures contracts in which the Fund invests and the value of the Fund.
An increase in cryptocurrency mining increased the demand of graphics cards (GPU) in 2017.[49] Popular favorites of cryptocurrency miners such as Nvidia’s GTX 1060 and GTX 1070 graphics cards, as well as AMD’s RX 570 and RX 580 GPUs, doubled or tripled in price – or were out of stock.[50] A GTX 1070 Ti which was released at a price of $450 sold for as much as $1100. Another popular card GTX 1060's 6 GB model was released at an MSRP of $250, sold for almost $500. RX 570 and RX 580 cards from AMD were out of stock for almost a year. Miners regularly buy up the entire stock of new GPU's as soon as they are available.[51]
From time to time, proxy issues may pose a material conflict of interest between Fund shareholders and the Advisor, the Distributor or any affiliates thereof. Due to the limited nature of the Advisor’s activities (e.g., no underwriting business, no publicly traded affiliates, no investment banking activities and no research recommendations), conflicts of interest are likely to be infrequent. Nevertheless, it shall be the duty of the Committee to monitor potential conflicts of interest. In the event a conflict of interest arises, the Advisor will direct ISS to use its independent judgment to vote affected proxies in accordance with approved guidelines. The Committee will disclose to the Board of Trustees the voting issues that created the conflict of interest and the manner in which voted such proxies were voted.

Bitrex provides comprehensive vetting of new Cryptocurrency tokens and places a strong emphasis on user security. Hence has the reputation for being a secure wallet with a good security module. The platform trades vastly in Altcoin. Trading fees at the platform are 0.25 %. The minimum transaction fee of the blockchain governs the charge for deposit and withdrawal.

•   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.

It is expected that each Subsidiary will neither be subject to taxation on its net income in the same manner as a corporation formed in the United States nor subject to branch profits tax on the income and gain derived from its activities in the United States. A foreign corporation will generally not be subject to such taxation unless it is engaged in or is treated as engaged in a U.S. trade or business. Each Subsidiary expects to operate in a manner such that it is not so engaged or so treated.
Market makers are challenged in fast markets—when either buyers or sellers are dominating and prices are moving rapidly. When this happens market makers are obligated to continue quoting bid and ask prices that maintain some semblance of an orderly market. If they start accumulating uncomfortably large net long or short inventories they may start hedging their positions to protect themselves. For example, if they are short Bitcoin futures they can buy Bitcoin futures with different expirations or directly buy Bitcoins to hedge their positions. The hedged portion of the market maker’s portfolio is not sensitive to Bitcoin price movements—their profit/losses on the short side are offset by their long positions.
Although currently bitcoin is not regulated or is lightly regulated in most countries, including the United States, some countries have and one or more countries may in the future take regulatory actions that severely restrict the right to acquire, own, hold, sell or use bitcoin or to exchange bitcoin for fiat currency. Such restrictions could have an adverse effect on the price of bitcoin and the Bitcoin Instruments in which the Funds invest and may adversely affect an investment in the Funds.
Index options are subject to substantial risks, including the risk of imperfect correlation between the option price and the value of the underlying assets composing the index selected, the possibility of an illiquid market for the option or the inability of counterparties to perform. Because the value of an index option depends upon movements in the level of the index rather than the
As we have seen above, a futures contract has an expiration date. This is the date on which you can purchase the ton of pork bellies for 1,000 USD – this is called a physical settlement. Alternatively, futures contracts can be settled with cash as well. In these contracts, you receive the difference between the current price of the underlying asset and the price in your contract as cash.