The proof-of-stake is a method of securing a cryptocurrency network and achieving distributed consensus through requesting users to show ownership of a certain amount of currency. It is different from proof-of-work systems that run difficult hashing algorithms to validate electronic transactions. The scheme is largely dependent on the coin, and there's currently no standard form of it. Some cryptocurrencies use a combined proof-of-work/proof-of-stake scheme.[18]
Gains or losses attributable to fluctuations in exchange rates that occur between the time a Fund accrues income or other receivables or accrues expenses or other liabilities denominated in a foreign currency and the time the Fund actually collects such receivables or pays such liabilities generally are treated as ordinary income or ordinary loss. Similarly, on disposition of some investments, including debt securities and certain forward contracts denominated in a foreign currency, gains or losses attributable to
The rules regarding the extent to which such subpart F inclusions will be treated as “qualifying income” for purposes of the 90% gross income requirement described above are unclear and currently under consideration. In the absence of further guidance, each Parent Fund will seek to ensure that it satisfies the 90% gross income requirement, including but not limited to by ensuring that its Subsidiary timely distributes to it an amount equal to the Subsidiary’s subpart F income by the end of the Subsidiary’s taxable year. In order to make such distributions, the Subsidiary may be required to sell investments, including at a time when it may be disadvantageous to do so. If a Parent Fund were to fail to qualify as a RIC accorded special tax treatment in any taxable year, it would be subject to tax on its taxable income at corporate rates, and all distributions from earnings and profits, including any distributions of net tax-exempt income and net long-term capital gains, would be taxable to shareholders as ordinary income. In addition, the Parent Fund could be required to pay substantial taxes, penalties and interest, and to make substantial distributions, in order to re-qualify for such special treatment.
A Fund’s ability to invest in MLPs that are treated as qualified publicly traded partnerships (“QPTPs”) for federal income tax purposes is limited by the Fund’s intention to qualify as a RIC, and if the Fund does not appropriately limit such investments or if such investments are recharacterized for U.S. tax purposes, the Fund’s status as a RIC may be jeopardized. Among other limitations, a Fund is permitted to have no more than 25% of the total value if its total assets invested, including through corporations in which the Fund owns a 20% or more voting stock interest, in QPTPs including MLPs. A Fund’s investments in MLPs potentially will result in distributions from that Fund (i) constituting returns of capital not included in a shareholder’s income but reducing the shareholder’s tax basis in his or her shares; (ii) attributable to gain recognized with respect to that is recharacterized as ordinary income and, therefore, not offset by capital losses; or (iii) taxable to such shareholder even though they represent appreciation realized by that Fund prior to the shareholder’s investment therein. That Fund’s investments in MLPs will also potentially cause it to recognize taxable income on its investments in in excess of the cash generated thereby, and therefore require the Fund to sell investments, including when not otherwise advantageous to do so, in order to satisfy the distribution requirements for treatment as a RIC and to eliminate a Fund-level tax.
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.
Start small. Get familiar with the platform you're using before you make any significant trades. BitMEX offers a sandbox using Testnet coins. OKCoin and BitVC do not offer a demo version, but you can start small with 1 contract and test how Open Long, Open Short, Close Long, Close Short and different order types work. If you contact CryptoFacilities you can also get access to a demo platform to use.
With the increased use of technologies such as the Internet and the dependence on computer systems to perform necessary business functions, each Fund is susceptible to operational and information security risks. In general, cyber incidents can result from deliberate attacks or unintentional events. Cyber attacks include, but are not limited to gaining unauthorized access to digital systems for purposes of misappropriating assets or sensitive information, corrupting data, or causing operational disruption. Cyber attacks may also be carried out in a manner that does not require gaining unauthorized access, such as causing denial-of-service attacks on websites. Cyber security failures or breaches of a Fund’s third -party service provider (including, but not limited to, index providers, the administrator and transfer agent) or the issuers of securities in which the Funds invest, have the ability to cause disruptions and impact business operations, potentially resulting in financial losses, the inability of Fund shareholders to transact business, violations of applicable privacy and other laws, regulatory fines, penalties, reputational damage, reimbursement or other compensation costs, and/or additional compliance costs. In addition, substantial costs may be incurred in order to prevent any cyber incidents in the future. The Funds and their shareholders could be negatively impacted as a result. While the Funds have established business continuity plans and systems to prevent such cyber attacks, there are inherent limitations in such plans and systems including the possibility that certain risks have not been identified. Furthermore, the Funds cannot control the cyber security plans and systems put in place by issuers in which the Funds invest.
  (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.
The Funds may purchase and write options on indexes to create investment exposure consistent with their investment objectives, to hedge or limit the exposure of their positions, or to create synthetic money market positions. An index fluctuates with changes in the market values of the assets included in the index. Options on indexes give the holder the right to receive an amount of cash upon exercise of the option. Receipt of this cash amount will depend upon the closing level of the index upon which the option is based being greater than (in the case of a call) or less than (in the case of a put) the level at which the exercise price of the option is set. The amount of cash received, if any, will be the difference between the closing price level of the index and the exercise price of the option, multiplied by a specified dollar multiple. The writer (seller) of the option is obligated, in return for the premiums received from the purchaser of the option, to make delivery of this amount to the purchaser. All settlements of index options transactions are in cash.
The Funds may invest in foreign issuers, securities traded principally in securities markets outside the United States, U.S.-traded securities of foreign issuers and/or securities denominated in foreign currencies (together “foreign securities”). Also, each Fund may seek exposure to foreign securities by investing in Depositary Receipts (discussed below). Foreign securities may involve special risks due to foreign economic, political and legal developments, including unfavorable changes in currency exchange rates, exchange control regulation (including currency blockage), expropriation or nationalization of assets, confiscatory taxation, taxation of income earned in foreign nations, withholding of portions of interest and dividends in certain countries and the possible difficulty of obtaining and enforcing judgments against foreign entities. Default in foreign government securities, political or social instability or diplomatic developments could affect investments in securities of issuers in foreign nations. In addition, in many countries there is less publicly available information about issuers than is available in reports about issuers in the United States. Foreign companies are not generally subject to uniform accounting, auditing and financial reporting standards, and auditing practices and requirements may differ from those applicable to U.S. companies. Further, the growing interconnectivity of global economies and financial markets has increased the possibilities that conditions in any one country or region could have an adverse impact on issuers of securities in a different country or region.
Let's not even go into the paradigm shift that this development implies. The growth of a bitcoin futures market positions it even more as a commodity than a currency (in the US, the Commodity Futures Trading Commission regulates futures markets). And even more as an investment asset than a technology that has the potential to change the plumbing of finance.
Bitcoin Gold (BTG) is the second fork from Bitcoin (i.e. the second version to stem from Bitcoin’s source code). It retains Bitcoin’s transaction history, meaning that if you owned Bitcoin before the fork, you now own the equal amount of Bitcoin Gold. This cryptocurrency aims to introduce an alternative mining algorithm that is less susceptible to ASIC-based optimization, therefore allowing users to earn more with their computer cycles.
The value of such Creation Unit for the Equities for Rising Rates ETF, the S&P MidCap 400 Dividend Aristocrats ETF, the Russell 2000 Dividend Growers ETF, the MSCI Emerging Markets Dividend Growers ETF, the Managed Futures Strategy ETF, the Crude Oil Strategy ETF, the UltraPro Short Nasdaq Biotechnology ETF, the Short 7-10 Year Treasury ETF and the Ultra Gold Miners ETF as of each Fund’s inception was $1,000,000.
And this is where the BRR comes in. The BRR is the reference rate that is relevant for futures contracts and options in Bitcoin. When a futures contract or call option expires on a certain day, the owner will receive the difference between the BRR and the Bitcoin price in the contract as cash (if the BRR is higher than the price in the contract, of course). The BRTI, in contrast, is a real-time statistic that is not binding for any contracts; it tells you for what price you can currently (in this second) buy or sell Bitcoin on the markets.
Each Independent Trustee is paid a $185,000 annual retainer for service as Trustee on the Board and for service as Trustee for other funds in the Fund Complex, $10,000 for attendance at each quarterly in-person meeting of the Board of Trustees, $3,000 for attendance at each special meeting of the Board of Trustees, and $3,000 for attendance at telephonic meetings. Trustees who are also Officers or affiliated persons receive no remuneration from the Trust for their services as Trustees. The Officers, other than the CCO, receive no compensation directly from the Trust for performing the duties of their offices.
The Bitcoin Network and bitcoin, as an asset, currently hold a “first-to-market” advantage, often referred to as a “network effect,” over other digital assets. This first-to-market advantage has resulted in the Bitcoin Network evolving into the most well developed network of any digital asset. The Bitcoin Network enjoys the largest user base of any digital asset and, more importantly, the largest combined mining power in use to secure the Bitcoin Blockchain. Having a large mining network enhances user confidence regarding the security of the Bitcoin Blockchain and long-term stability of the Bitcoin Network. Despite the marked network effect advantage of the Bitcoin Network over other digital assets, it is possible that real or perceived shortcomings in the Bitcoin Network, technological, regulatory or other developments could result in a decline in popularity and acceptance of bitcoin and the Bitcoin Network.

The following individuals have responsibility for the day-to-day management of each Fund as set forth in the Summary Prospectus relating to such Fund. The Portfolio Managers’ business experience for the past five years is listed below. The SAI provides additional information about the Portfolio Managers’ compensation, other accounts managed by the Portfolio Managers and the Portfolio Managers’ ownership of securities in each Fund.
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]
  •   An interruption in Internet service or a limitation of Internet access could have a negative impact on bitcoin. The Bitcoin Network relies on users access to the Internet. A significant disruption of Internet connectivity could impede the functionality of the Bitcoin Network and adversely affect the price of bitcoin. Any technical disruptions or regulatory limitations that affect Internet access may have an adverse effect on the Bitcoin Network, the price of bitcoin and the bitcoin futures contracts in which the Fund invests. In addition to technical disruptions such as cyber-attacks, the potential elimination of the net neutrality regulations in the U.S. may have a negative impact on bitcoin and the Bitcoin ecosystem.
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.
Nothing contained herein is intended to be or to be construed as financial advice. Investors should discuss their individual circumstances with appropriate professionals before making any investment decisions. This information should not be construed as sales or marketing material or an offer or solicitation for the purchase or sale of any financial instrument, product or service.  
Unsponsored ADR programs are organized independently and without the cooperation of the issuer of the underlying securities. As a result, available information concerning the issuers may not be as current for unsponsored ADRs, and the price of unsponsored depositary receipts may be more volatile than if such instruments were sponsored by the issuer and/or there may be no correlation between available information and the market value.

Under Delaware law, the Trust is not required to hold an annual shareholders meeting if the 1940 Act does not require such a meeting. Generally, there will not be annual meetings of Trust shareholders. Trust shareholders may remove Trustees from office by votes cast at a meeting of Trust shareholders or by written consent. If requested by shareholders of at least 10% of the outstanding Shares of the Trust, the Trust will call a meeting of Funds’ shareholders for the purpose of voting upon the question of removal of a Trustee of the Trust and will assist in communications with other Trust shareholders.

​The price of the futures contract can deviate from the underlying price of bitcoin on spot markets, which can vary based on sentiment. But in the end, at expiration of the contract, the contract MUST settle at the price of spot. So you need to watch the main spot market price movements because the futures contracts will track the movements underlying (sometimes leading, sometimes lagging, sometimes simultaneously). There are three Chinese exchanges worth following: OKCoin, Houbi, and BTCC; there are two Western exchanges worth following: Bitfinex and Bitstamp. Other exchanges that are currently less important but still worth keeping an eye on are: ItBit, Coinbase, OKCoin USD, BTC-e, and Kraken (which has the largest BTC/EUR orderbook as of December 2015).
No Independent Trustee (or an immediate family member thereof) had any direct or indirect interest, the value of which exceeded $120,000, in the Advisor, the principal underwriter of the Trust, or any entity controlling, controlled by or under common control with the Advisor or the principal underwriter of the Trust (not including registered investment companies) during the two most recently completed calendar years.
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.
The Trustees, their birth date, term of office and length of time served, principal business occupations during the past five years and the number of portfolios in the Fund Complex overseen and other directorships, if any, held by each Trustee, are shown below. Unless noted otherwise, the addresses of each Trustee is: c/o ProShares Trust, 7501 Wisconsin Avenue, Suite 1000E, Bethesda, MD 20814.
JPMorgan Chase Bank, National Association, One Beacon Street, 19th Floor, Boston, MA 02108, acts as Administrator to the Funds pursuant to an administration agreement dated June 16, 2006, as amended from time to time. The Administrator provides the Funds with all required general administrative services, including, without limitation, office space, equipment, and personnel; clerical and general back office services; bookkeeping and internal accounting; the determination of NAVs; and the preparation and filing of all financial reports, and all other materials, except registration statements and proxy statements, required to be filed or furnished by the Funds under federal and state securities laws. Citi Fund Services Ohio, Inc. (“Citi”), located at 4400 Easton Commons, Suite 200, Columbus, OH 43219, an indirect wholly-owned subsidiary of Citibank N.A., provides regulatory administration services to the Trust (altogether, the “Regulatory Administrative Services”). For its services, Citi is paid a set fee allocated among each of the Funds.
Cardano (ADA) is a fully open-source, decentralized, public blockchain and cryptocurrency. Cardano is very similar to Ethereum, and the team wants to build on that. Cardano aims to operate a global smart-contract platform which will deliver much more advanced features compared to its competitors. Loads of existing investors are excited because Cardano is the first blockchain founded on scientific philosophy, and also the very first provably secure proof of stake algorithm.
Non-Diversified Status (All Funds, except the S&P 500 Dividend Aristocrats ETF, the S&P MidCap 400 Dividend Aristocrats ETF, the Russell 2000 Dividend Growers ETF, the MSCI EAFE Dividend Growers ETF, the MSCI Europe Dividend Growers ETF, the MSCI Emerging Markets Dividend Growers ETF, the DJ Brookfield Global Infrastructure ETF, the Equities for Rising Rates ETF, the S&P 500 Ex-Energy ETF, the S&P 500 Ex-Financials ETF, the S&P 500 Ex-Health Care ETF, the S&P 500 Ex-Technology ETF, the High Yield—Interest Rate Hedged, the Investment Grade—Interest Rate Hedged and the Short Term USD Emerging Markets Bond ETF the ProShares Bitcoin Futures/Equity Strategy ETF, and the ProShares Bitcoin/Blockchain Strategy ETF)

The CME Bitcoin futures contracts will be cash-settled, meaning that you will receive USD on the expiration date if your speculation was successful and you have not sold the derivative before the expiration date. You will not receive Bitcoin – that would be a physical settlement, even though Bitcoin is not a physical asset. This is a crucial difference because it enables traders to trade in Bitcoin futures without having a cryptocurrency wallet. Every transaction is done in USD.Thus, it is easy for mainstream traders to take part in this market.