Each of ProShares Ultra 7-10 Year Treasury, ProShares Short 7-10 Year Treasury, ProShares UltraShort 7-10 Year Treasury, ProShares Ultra 20+ Year Treasury, ProShares Short 20+ Year Treasury, ProShares UltraShort 20+ Year Treasury, and ProShares UltraPro Short 20+ Year Treasury is based in whole, or in part, on the ICE U.S. 7-10 Year Bond Index, or ICE U.S. 20+ Year Bond Index, as applicable, owned by Intercontinental Exchange, Inc. or its affiliates and is used by LICENSEE with permission under license by Interactive Data Pricing and Reference Data, LLC, an affiliate of Intercontinental Exchange, Inc. (“Interactive Data”). ICE U.S. 7-10 Year Bond Index™ and ICE U.S. 20+ Year Bond Index™ (collectively, the “Indices”) are trademarks of Intercontinental Exchange, Inc. and its affiliates and used under license.
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.

The Board has determined that its leadership structure is appropriate in light of the characteristics of the Trust and each of the Funds. These characteristics include, among other things, the fact that all Funds are organized under one Trust; all Funds are exchange-traded funds; all Funds have common service providers; and that the majority of Funds are geared funds, with similar principal investment strategies. As a result, the Board addresses governance and management issues that are often common to all or most of the Funds. In light of these characteristics, the Board has determined that a four-member Board, including three Independent

It bears repeating -- when trading futures on leverage, you are not "borrowing" the money, so you don't have to pay a financing rate on your positions. Even though you are 100x exposed, you don't have to pay 100x financing (unless you're trading the perpetual swap, which is not a futures contract, but has similar characteristics). Since bitcoin futures do tend to trade at a premium, you are in a way paying an implied interest rate in the contract, because if you want to go long, you have to pay above spot, so you pay the interest up front in the contract, in a way.
Investment in mortgage-backed securities poses several risks, including among others, prepayment, market and credit risk. Prepayment risk reflects the risk that borrowers may prepay their mortgages faster than expected, thereby affecting the investment’s average life and perhaps its yield. Whether or not a mortgage loan is prepaid is almost entirely controlled by the borrower. Borrowers are most likely to exercise prepayment options at the time when it is least advantageous to investors, generally prepaying mortgages as interest rates fall, and slowing payments as interest rates rise. Besides the effect of prevailing interest rates, the rate of prepayment and refinancing of mortgages may also be affected by appreciation in home values, ease of the refinancing process and local economic conditions. Market risk reflects the risk that the price of a security may fluctuate over time. The price of mortgage-backed securities may be particularly sensitive to prevailing interest rates, the length of time the security is expected to be outstanding, and the liquidity of the issue. In a period of unstable interest rates, there may be decreased demand for certain types of mortgage-backed securities, and each Fund invested in such securities wishing to sell them may find it difficult to find a buyer, which may in turn decrease the price at which they may be sold. Credit risk reflects the risk that a Fund may not receive all or part of its principal because the issuer or credit enhancer has defaulted on its obligations. Obligations issued by U.S. government-related entities are guaranteed as to the payment of principal and interest, but are not backed by the full faith and credit of the U.S. government. The performance of private label mortgage-backed securities, issued by private institutions, is based on the financial health of those institutions. With respect to GNMA certificates, although GNMA guarantees timely payment even if homeowners delay or default, tracking the “pass-through” payments may, at times, be difficult.

The truth is that bitcoin is the hottest trading market right now, hotter than stock trading, oil trading, gold trading and any other market at this point. The reason people believe this is going to continue to be a hot market is because blockchain technology which is what allows transactions to happen without a central exchange. Here is another strategy on how to draw trend lines with fractals.

Here’s what’s Lisk all about: Most developers today rely on centralized giants, such as Google Play and the AppStore to put up their newly developed apps. These giants take much of the profits and attention from these apps, and Lisk believes all this should be going to the developers themselves. This is where its Javascript-based tech comes in. Lisk is incredibly exciting because it aims to offer a decentralized apps platform, one that actually favors the developers, and therefore gives them the bigger piece of the cake. Lisk was previously Crypti, and after proving itself on a community level, it was forked by Max Kordek and Oliver Beddows into Lisk, in 2016.
This Statement of Additional Information (“SAI”) is not a prospectus. It should be read in conjunction with the Prospectus of ProShares Trust (the “Trust”), dated October 1, 2017, the Prospectus dated November 16, 2017 for ProShares Decline of the Retail Store ETF, the Prospectus dated November 16, 2017 for ProShares Long Online/Short Stores ETF, the Prospectus dated             , 2018 for ProShares Bitcoin Futures Strategy ETF, the Prospectus dated             , 2018 for ProShares Short Bitcoin Futures Strategy ETF, the Prospectus dated             , 2018 for ProShares Blockchain/Bitcoin Strategy ETF, and the Prospectus dated             , 2018 for ProShares Bitcoin Futures/Equity Strategy ETF each as may be amended or supplemented, each of which incorporates this SAI by reference. A copy of the Prospectuses and a copy of the Annual Report to shareholders for the Funds that have completed a fiscal year are available, without charge, upon request to the address above, by telephone at the number above, or on the Trust’s website at www.ProShares.com. The Financial Statements and Notes contained in the Annual Report to Shareholders for the fiscal year ended May 31, 2017 are incorporated by reference into and are deemed part of this SAI. The principal U.S. national stock exchange on which all Funds (except those noted below) identified in this SAI are listed is NYSE Arca. The S&P MidCap 400 Dividend Aristocrats ETF, the Russell 2000 Dividend Growers ETF, the ProShares MSCI Emerging Markets Dividend Growers ETF, the ProShares S&P 500 Dividend Aristocrats ETF, the ProShares MSCI EAFE Dividend Growers ETF, the MSCI Europe Dividend Growers ETF, the Morningstar Alternatives Solution ETF, the Global Listed Private Equity ETF, the Large Cap Core Plus, the High Yield—Interest Rate Hedged, the Investment Grade—Interest Rate Hedged, the Short Term USD Emerging Markets Bond ETF, the ProShares Managed Futures Strategy ETF, the Merger ETF, K-1 Free Crude Oil Strategy ETF and the CDS Short North American HY Credit ETF are listed on the Bats BZX Exchange, Inc. The UltraPro Short QQQ®, the UltraShort Nasdaq Biotechnology, the UltraPro Short Nasdaq Biotechnology, the UltraPro QQQ®, the Ultra Nasdaq Biotechnology the UltraPro Nasdaq Biotechnology and the Equities for Rising Rates ETF are listed on The NASDAQ Stock Market.
"It's certainly not a scam," cryptocurrency startup Centra's general counsel said last month about its $30 million initial coin offering, which is not a sentence you'd ideally want your general counsel to have to say to the press. (He said it after Centra's co-founders left the company due to a New York Times profile describing their run-ins with the law and pointing to possibly inaccurate statements about their ICO, which was touted by Floyd Mayweather and DJ Khaled and which, again, raised $30 million.)
It’s reasonable to assume that a product named a future is attempting to predict the future. For Bitcoin futures, this is definitely not what they deliver. The core utility of the futures markets is not predicting the future prices of their product but rather the secure delivery of a product at a known price, quality, and date. If there’s product seasonality (e.g., specific harvest times) or foreseeable shortages/abundances then future’s prices may reflect that but neither of these factors applies to Bitcoin.
There are two "types" of bitcoin -- Quanto and Inverse. Vast majority of bitcoin futures contracts are INVERSE, not Quanto. This means that the PNL is smoothed in USD terms, so that the contract value is maintained through price fluctuations. Put simply, it allows you to make a perfect USD-value hedge when you short with Bitcoin, which makes it ideal for speculators and hedgers. This means that if the BTC/USD value drops 1% you will earn more raw BTC than if it increases 1%. This is because when the price is falling, the USD value of the BTC is also falling, so the payout mathematically adjusts for this and increases as the price falls, compensating for the reduced USD value.
The first timestamping scheme invented was the proof-of-work scheme. The most widely used proof-of-work schemes are based on SHA-256 and scrypt.[18] The latter now dominates over the world of cryptocurrencies, with at least 480 confirmed implementations.[37] Some other hashing algorithms that are used for proof-of-work include CryptoNight, Blake, SHA-3, and X11.
•   Daily Position Limit Risk - Many U.S. futures exchanges limit the amount of fluctuation permitted in futures contract prices during a single trading day. Once the daily limit has been reached in a particular contract, no trades may be made that day at a price beyond that limit or trading may be suspended for specified periods during the trading day. In addition, these exchanges have established limits on the maximum amount of futures positions that any person may hold or control on such exchanges. These limits may restrict the amount of assets the Fund is able to invest in bitcoin futures contracts or have a negative impact on the price of such contracts. In order to comply with such limits, the Fund may be required to reduce the size of its outstanding positions or not enter into new positions that would otherwise be taken for the Fund. This could potentially subject the Funds to substantial losses or periods in which the Fund does not accept additional Creation Units.
Transaction fees payable to the Trust are imposed to compensate the Trust for the transfer and other transaction costs of a Fund associated with the issuance and redemption of Creation Units of Shares. A fixed Transaction Fee is applicable to each creation or redemption transaction, regardless of the number of Creation Units purchased or redeemed. In addition, a variable Transaction Fee equal to a percentage of the value of each Creation Unit purchased or redeemed may be applicable to a creation or redemption transaction. Purchasers of Creation Units of the Matching and Ultra ProShares Funds for cash may also be required to pay an additional charge to compensate the relevant Fund for brokerage, market impact or other expenses. Where the Trust permits an in-kind purchaser to substitute cash in lieu of depositing a portion of the Deposit Securities, the purchaser will be assessed an additional charge for cash purchases. The maximum Transaction Fee on purchases and redemptions will be 2.00% of the NAV of any Creation Unit, except that for the High Yield—Interest Rate Hedged, the Investment Grade—Interest Rate Hedged and the Short Term USD Emerging Markets Bond ETF, a Transaction Fee up to 3.00% will be charged on the cash used in lieu of depositing all or a portion of the Deposit Securities or the cash portion of any redemption transaction. The Transaction Fees charged to each Fund are presented in the Authorized Participant Handbook.
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. 
FOREIGN SOVEREIGN, SUB-SOVEREIGN, QUASI SOVEREIGN AND SUPRANATIONAL SECURITIES. The Funds may invest in fixed-rate debt securities issued by: non-U.S. governments (foreign sovereign bonds); local governments, entities or agencies of a non-U.S. country (foreign sub-sovereign bonds); corporations with significant government ownership (“Quasi-Sovereigns”); or two or more central governments or institutions (supranational bonds). These types of debt securities are typically
For each intervening holiday in the applicable foreign market that is not a holiday observed by the U.S. equity markets, the redemption settlement cycle will be extended by the number of days of such intervening holiday. In addition to holidays, other unforeseeable closings in a foreign market, including due to regulatory action, may also prevent a Fund from delivering securities within the normal settlement period.
I have worked with the CME in the past on product development (specifically CDS futures) and from my experience, they would not have missed anything this simple.  In fact, while I am not a huge fan of the concept of Bitcoin futures, as currently implemented, I do not expect any errors in the operation of the CME or CBOE futures contract.  I am sure that regulators will be questioning them on the back of the OKEX, as they should, and I am also quite positive the exchanges here will pass with flying colors.
At the expiration of the contract you are trading, all positions get closed out and settled. Different exchanges use different anchors to settle against. To avoid manipulation, most of them use an index. OKCoin uses a custom 6-exchange index (3 chinese, 3 Western), while BitMEX, Deribit, Coinpit, and CryptoFacilities use a multi-spot-exchange Index to settle all of its contracts at expiration. This minimizes the risk of any manipulation if contracts settled on a single exchange's price, but it also makes it more difficult to manage your hedges since there's no way to "buy" or "sell" an index. No system is perfect, and each one offers different unique pro's and con's, just like your selection of contract type and length. So depending on your case you may want something different than someone else.
On 25 March 2014, the United States Internal Revenue Service (IRS) ruled that bitcoin will be treated as property for tax purposes. This means bitcoin will be subject to capital gains tax.[80] In a paper published by researchers from Oxford and Warwick, it was shown that bitcoin has some characteristics more like the precious metals market than traditional currencies, hence in agreement with the IRS decision even if based on different reasons.[81]

There's a lot of ins and outs which can get confusing in arbitrage trading. We won't go into the technicals of why futures contracts trade at a premium to spot price. You can read a full explanation here. If it's not of interest to you, all you need to know is that there's a tendency, the further out in time the futures contract expires, for the premium to spot to be higher and higher in nominal percentage terms.