Decentralized cryptocurrency is produced by the entire cryptocurrency system collectively, at a rate which is defined when the system is created and which is publicly known. In centralized banking and economic systems such as the Federal Reserve System, corporate boards or governments control the supply of currency by printing units of fiat money or demanding additions to digital banking ledgers. In case of decentralized cryptocurrency, companies or governments cannot produce new units, and have not so far provided backing for other firms, banks or corporate entities which hold asset value measured in it. The underlying technical system upon which decentralized cryptocurrencies are based was created by the group or individual known as Satoshi Nakamoto.[28]


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.

and the FTSE Developed Europe Index (the “Indices”) (ii) the figure at which an Index is said to stand at any particular time on any particular day or otherwise, or (iii) the suitability of the Index for the purpose to which it is being put in connection with the ProShares Ultra, Short and UltraShort FTSE China 50 and Ultra and UltraShort FTSE Developed Europe. None of the Licensor Parties have provided or will provide any financial or investment advice or recommendation in relation to the Index to ProShares or its clients. The Index is calculated by FTSE or its agent. None of the Licensor Parties shall be (a) liable (whether in negligence or otherwise) to any person for any error in the Index and (b) under any obligation to advise any person of any error therein.
Although shares of the fund are listed for trading on a stock exchange and may be listed or traded on other U.S. and non-U.S. stock exchanges, there can be no assurance that an active trading market for the Fund’s shares will develop or be maintained. Trading in shares on an exchange may be halted due to market conditions or for reasons that, in the view of an exchange, make trading in shares inadvisable. In addition, trading in shares on an exchange is subject to trading halts caused by extraordinary market volatility pursuant to exchange “circuit breaker” rules. Short selling of shares is also limited pursuant to SEC rules if the trading price of shares varies by more than 10% from the previous day’s closing price on the exchange. There can be no assurance that the requirements of the exchange necessary to maintain the listing of the Fund will continue to be met or will remain unchanged or that the shares will trade with any volume, or at all, on any stock exchange.
price of a particular asset, whether a Fund will realize a gain or loss from the purchase or writing (sale) of options on an index depends upon movements in the level of prices for specific underlying assets generally or, in the case of certain indexes, in an industry or market segment. A Fund will not enter into an option position that exposes the Fund to an obligation to another party, unless the Fund either (i) owns an offsetting position in the underlying securities or other options and/or (ii) earmarks or segregates with the Fund’s custodian bank cash or liquid instruments that, when added to the premiums deposited with respect to the option, are equal to the market value of the underlying assets not otherwise covered.
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.
Do you remember, like, two weeks ago, when people were talking about how the launch of bitcoin futures at Cboe Global Markets Inc. and CME Group Inc. would allow for efficient short-selling of bitcoin and finally deflate the bubble? Smart hedge-fund money was lining up to bet against bitcoin, the thinking went, but had no convenient way to do it on the actual bitcoin exchanges. The only people trading bitcoin were the true believers, so of course it kept going up, but once it was opened up to normal financial players that would end. "The futures reduce the frictions of going short more than they do of going long, so it’s probably net bearish," said Craig Pirrong. 
(ix) limit-up or limit-down trading halts on options or futures contracts which may prevent a Fund from purchasing or selling options or futures contracts; (x) early and unanticipated closings of the markets on which the holdings of a Fund trade, resulting in the inability of the Fund to execute intended portfolio transactions; and (xi) fluctuations in currency exchange rates.

In the event that a Fund invests in an Underlying RIC that is not publicly offered within the meaning of the Code, the Fund’s redemption of shares of such Underlying RIC may cause the Fund to be treated as receiving a dividend taxable as ordinary income on the full amount of the redemption instead of being treated as realizing capital gain (or loss) on the redemption of the shares of the Underlying RIC.
The audited Financial Statements, for each Fund that commenced operations prior to May 31, 2017, and the report of PricewaterhouseCoopers LLP, as independent registered public accounting firm, for the fiscal year ended May 31,2017, that appear in the Annual Report to shareholders dated May 31, 2017, are hereby incorporated by reference in this SAI. The Annual Report to shareholders is delivered with this SAI to shareholders requesting this SAI.
  •   A decline in the adoption of bitcoin could have a negative effect on the price of bitcoin and bitcoin-related investments. Bitcoin’s adoption has been on a generally continuous climb since bitcoin first gained mass media attention in 2013. However, there can be no guarantees this growth will continue. Further, adoption of bitcoin as a means of payment has been limited when compared with the increase in the price of bitcoin, indicating that the majority of bitcoin’s use is for investment and speculative purposes. A lack of acceptance of bitcoin as a means of payment could negatively impact the price of the Bitcoin Futures contracts in which the Fund invests.
BitMEX is a derivatives exchange that offers leveraged contracts that are bought and sold in Bitcoin. This is a platform that provides trading in bitcoin derivatives. The derivative traded is a perpetual swap contract, which is a derivative product similar to a traditional Futures Contract. Swap contracts trade like spots, tracking the underlying assets.
Additions such as Zerocoin have been suggested, which would allow for true anonymity.[54][55][56] In recent years, anonymizing technologies like zero-knowledge proofs and ring signatures have been employed in the cryptocurrencies Zcash and Monero, respectively. Cryptocurrency anonymizing implementations such as Cloakcoin, Dash, and PIVX use built in mixing services, also known as tumblers.[57]
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Each Fund seeks performance that corresponds to the performance of an index. There is no guarantee or assurance that the methodology used to create any index will result in a Fund achieving high, or even positive, returns. Any index may underperform more traditional indices. In turn, the Fund could lose value while other indices or measures of market performance increase in level or performance. In addition, each Fund may be subject to the risk that an index provider may not follow its stated methodology for determining the level of the index and/or achieve the index provider’s intended performance objective.

Traders A and B in the previous example are hedgers. However, futures contracts, once they exist, can also be bought and sold in their own right. This is where futures get interesting for speculators. Say that Speculator X believes the price of a ton of pork belly will rise to 1,200 USD in 3 months’ time, so buying the futures contract at 1,000 USD is a good deal. He can then sell the contract to bacon producers who want to buy pork bellies at 1,000 USD. The option to buy at a specified price in the future is known as a call option. The price of call options rise when traders assume that the price of the underlying asset will rise.
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