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 a combination of (i) the equity securities of blockchain technology companies, (ii) bitcoin futures, options and swap contracts that provide exposure to the price movements of bitcoin (“Bitcoin Derivatives”) and (iii) bitcoin related securities, such as bitcoin linked exchange traded notes (“ETNs”), funds and trusts (“Bitcoin Securities”) (collectively, with Bitcoin Securities, “Bitcoin Investments”). The Fund targets a minimum of 30% exposure to Bitcoin Investments. The Fund’s other assets will be invested in the equity securities of blockchain technology companies — companies that the Fund’s investment advisor determines are well-positioned to benefit from blockchain technology. The securities of blockchain technology companies may be listed on U.S. or non-U.S. exchanges and must meet certain minimum capitalization and liquidity requirements. The Fund intends to concentrate its investment in blockchain technology companies and/or technology companies.
For the three most recent fiscal years, each Fund that was operational for the period indicated paid ProShare Advisors the amount set forth below pursuant to the Management Services Agreement. Because the New Fund was not operational at the end of the Trust’s last fiscal year, information on fees paid pursuant to the Management Services Agreement by the New Fund is not included in this SAI.
All Shares of the Trust are freely transferable. The Shares do not have preemptive rights or cumulative voting rights, and none of the Shares have any preference to conversion, exchange, dividends, retirements, liquidation, redemption or any other feature. Shares have equal voting rights, except that, in a matter affecting a particular series or class of Shares, only Shares of that series or class may be entitled to vote on the matter. Trust shareholders are entitled to require the Trust to redeem Creation Units of their Shares. The Declaration of Trust confers upon the Board of Trustees the power, by resolution, to alter the number of Shares constituting a Creation Unit or to specify that Shares may be individually redeemable. The Trust reserves the right to adjust the stock prices of Shares to maintain convenient trading ranges for investors. Any such adjustments would be accomplished through stock splits or reverse stock splits which would have no effect on the net assets of the applicable Fund.

Changes in the laws of the United States and/or the Cayman Islands, under which the Parent Funds and the Subsidiaries are organized, respectively, could result in the inability of a Parent Fund and/or its respective Subsidiary to operate as described in this SAI and could negatively affect a Parent Fund and its shareholders. For example, the Cayman Islands does not currently impose any income, corporate or capital gains tax, estate duty, inheritance tax, gift tax or withholding tax on the Subsidiaries. If Cayman Islands law changes such that a Subsidiary must pay Cayman Islands taxes, Parent Fund shareholders would likely suffer decreased investment returns. See “Taxation” below for more information.
That's why liquidity and volume are essential to a quality exchange. If you enter that contract at $400 and you see bitcoin spot price jumping to $500 but nobody is trading futures so you can't sell it to them, you get screwed. Luckily at this point in 2016 there are numerous options for trading futures that are liquid and settle on short time horizons. So you can typically trade contracts and get in and out of them with decent spreads and reasonable fees.
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.
The tables below show performance examples of an UltraPro and UltraPro Short ProShares Fund that have investment objectives to correspond to three times (3x) and three times the inverse (-3x) of, respectively, the daily performance of an index. In the charts below, areas shaded lighter represent those scenarios where a Fund will return the same as or outperform (i.e., return more than) the index performance times the stated multiple in the Fund’s investment objective; conversely, areas shaded darker represent those scenarios where the Fund will underperform (i.e., return less than) the index performance times the stated multiple in the Fund’s investment objective.
The Trust’s website has information about the premiums and discounts for each Fund. Premiums or discounts are the differences between the NAV and market price of a Fund on a given day, generally at the time NAV is calculated. A premium is the amount that a Fund is trading above the NAV. A discount is the amount that the Fund is trading below the NAV.

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.

If I held the opinion that an asset was going to go one way, but then made the research and it turned out that I started thinking it might actually be headed the other way, I should feel no obligation to hold on to my original opinion, just because I didnt want to feel I’ve been initially wrong. This seems obvious but is much tougher in practice for inexperienced investors.
One traditional attraction of trading futures is the ability to use relatively small amounts of money to potentially achieve outsized returns. In many futures markets the margin, the amount of money that your broker requires up-front before executing the trade can be quite small compared to the ultimate value of the contract. For example, as of 22-Dec-2017, each E-mini S&P 500 contract was worth $134K ($50*S&P 500 index value)—this “list price” of the contract is called its notional value.  The CME only requires you to maintain a minimum margin of $4.5K (3.4% of notional) to control this contract (brokers often require additional margin). Margin requirements this low are only possible because the volatility of the S&P 500 is well understood and your margin account balance is adjusted at the end of every trading day to account for the winnings or losses of the day. If your account balance falls below the margin minimum of $4.5K you’ll need to quickly add money to your account or your position will be summarily closed out by your broker. On the plus side, if you’ve predicted the S&P’s direction correctly your profits will be that same as if you completely owned the underlying stocks in the index. A +1% daily move in the S&P500 would yield $1340 in profit even though you only have $4500 invested— a 29% return—this multiplier effect is called leverage.
Each Fund may consider changing its index at any time, including if, for example: the current index becomes unavailable; the Board believes that the current index no longer serves the investment needs of a majority of shareholders or that another index may better serve their needs; or the financial or economic environment makes it difficult for the Fund’s investment results to correspond sufficiently to its current index. If believed appropriate, a Fund may specify an index for itself that is “leveraged” or proprietary. There can be no assurance that a Fund will achieve its objective.
Some Centra investors have their doubts, and a plaintiffs' law firm has brought a class action complaint against Centra demanding the investors' money back. The complaint is fun -- Centra had a “Blog/Media Bounty” program to "Reward Experienced Writers who write quality Reviews, Articles About the Centra Project and the ICO crowdsale" -- but not that fun, because the plaintiffs' lawyers don't actually need to prove that Centra was a scam. Their job is much easier: All they need to do is prove that the tokens Centra sold in its initial coin offering were securities. If they were securities, they were sold illegally: They were offered publicly without being registered with the Securities and Exchange Commission, or being exempt from registration. And one remedy for the illegal sale of securities is that the buyers can demand their money back -- whether or not Centra is legitimate, whether or not it is actually using the money to build a cryptocurrency debit card, whether or not it made any misleading statements in the ICO.
Caspian is a full-stack cryptoasset management platform tying together the biggest crypto exchanges in a single interface, so as to facilitate investments in crypto instruments for newcomers and veterans alike. The joint venture between heavyweights Tora and Kenetic brings to the table a wealth of experience in asset management, accumulated over decades of building and operating trading platforms and technologies.

  •   Developmental risk. Blockchain technology is not a product or service within an individually attributable revenue stream. Blockchain technology may never develop optimized transactional processes that lead to realized economic returns for any company in which the Fund invests. Blockchain Companies that are developing applications of blockchain technology applications may not in fact do so or may not be able to capitalize on those blockchain technologies. The development of new or competing platforms may cause consumers and investors to use alternatives to blockchains.

  •   Lack of regulation. Digital commodities and their associated platforms are largely unregulated, and the regulatory environment is rapidly evolving. As a result, blockchain companies may be exposed to adverse regulatory action, fraudulent activity or even failure. Blockchain companies may face political or legal challenges from competitors, industry groups or local and national governments. New regulations may have a negative impact on blockchain technology and blockchain technology companies.
  (b) A majority of the Disinterested Trustees acting on the matter (provided that a majority of the Disinterested Trustees then in office act on the matter) or independent legal counsel in a written opinion shall determine, based upon a review of the readily available facts (as opposed to the facts available upon a full trial), that there is reason to believe that the recipient ultimately will be found entitled to indemnification.
It can often be confusing to traders who are using multiple futures exchanges with different contract types -- inverse and qunato, dailies or quarterlies, 5x or 100x -- so people wonder: what should I trade? Well, it depends on what your goals are. If you are trying to do a little hedge for a medium term, you would want to use a quarterlies expiration contract instead, because otherwise you'd have to reopen shorter-term contracts after they expire and settle. 
In traditional financial markets, derivatives are used as speculation objects as well as insurance against losses. The latter is known as hedging. One popular variety of derivatives used for hedging are called futures. A future is a contract between two parties in which one party agrees to pay the other a predetermined amount of money for an underlying asset at a specific point in time.