If this sounds confusing to you, then don't worry. In practice, these futures contracts are just like buying and selling spot market value. Just focus on the price of the contract and whether you are LONG or SHORT. If you're long and the futures price goes up, the BTC value of the contract goes up and you have bought an asset that is increasing in value.
• Investments by a Fund in options, futures, forward contracts, swap agreements and other derivative financial instruments are subject to numerous special and complex tax rules. These rules could affect the amount, timing or character of the distributions to shareholders by a Fund. In addition, because the application of these rules may be uncertain under current law, an adverse determination or future Internal Revenue Service guidance with respect to these rules may affect whether a Fund has made sufficient distributions, and otherwise satisfied the relevant requirements, to maintain its qualification as a regulated investment company and avoid fund-level tax.
• Intellectual property claims. A proliferation of recent startups attempting to apply blockchain technology in different contexts means the possibility of conflicting intellectual property claims could be a risk to an issuer, its operations or its business. This could also pose a risk to blockchain platforms that permit transactions in digital securities.
fluctuations in the value of the foreign currency between the acquisition and disposition of the position also are treated as ordinary income or loss. In certain circumstances, a Fund may elect to treat foreign currency gain or loss attributable to a forward contract, a futures contract or an option as capital gain or loss. Furthermore, foreign currency gain or loss arising from certain types of section 1256 contracts is treated as capital gain or loss, although a Fund may elect to treat foreign currency gain or loss from such contracts as ordinary in character. These gains and losses, referred to under the Code as “section 988” gains or losses, increase or decrease the amount of a Fund’s investment company taxable income available (and required) to be distributed to its shareholders as ordinary income. If a Fund’s section 988 losses exceed other investment company taxable income during a taxable year, the Fund would not be able to make any ordinary dividend distributions, or distributions made before the losses were realized would be recharacterized as a return of capital to shareholders, rather than as ordinary dividends, thereby reducing each shareholder’s basis in his or her Fund Shares.
• Bitcoin and investments linked to bitcoin, including bitcoin futures contracts, can be highly volatile and may experience large losses. The price of bitcoin has experienced periods of extreme volatility and low liquidity. Speculators and investors who seek to profit from trading and holding bitcoin currently account for a significant portion of bitcoin demand. Such speculation regarding the potential future appreciation in the value of bitcoin may artificially inflate the price of bitcoin. The price of bitcoin recently has been at or near all-time highs. There can be no guarantee this will continue and the market for bitcoin, and therefore bitcoin futures contracts, may change suddenly and without warning.
A Fund may invest in exchange-traded funds that are organized as trusts. An exchange-traded trust is a pooled trust that invests in assets, including physical commodities, and issues shares that are traded on a securities exchange. When the pool of assets is fixed, exchange traded trusts are treated as transparent for U.S. federal income tax purposes, and thus, the Fund will be treated as holding its share of an exchange traded trust’s assets, and the Fund’s sale of its interest in an exchange-traded trust will be treated as a sale of the underlying assets, for purpose of determining whether the Fund meets the 90 percent gross income test described above . As with investments in commodities and similar assets investments in exchange traded trusts may generate non-qualifying income for purposes of this test. As a result, a Fund’s investments in exchange traded trusts can be limited by the Fund’s intention to qualify as a RIC, and can bear adversely on the Fund’s ability to so qualify.
• 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.
ProShare Advisors is responsible for substantially all expenses of the Unitary Fee Funds except for: (i) brokerage and other transaction expenses and other fees, charges, taxes, levies or expenses (such as stamp taxes) incurred in connection with the execution of portfolio transactions or in connection with creation and redemption transactions (including without limitation any fees, charges, taxes, levies or expenses related to the purchase or sale of an amount of any currency, or the patriation or repatriation of any security or other asset, related to the execution of portfolio transactions or any creation or redemption transactions); (ii) legal fees or expenses in connection with any arbitration, litigation or pending or threatened arbitration or litigation, including any settlements in connection therewith; (iii) compensation and expenses of the Independent Trustees; (iv) compensation and expenses of counsel to the Independent Trustees, (v) compensation and expenses of the Trust’s chief compliance officer and his or her staff; (vi) extraordinary expenses (in each case as determined by a majority of the Independent Trustees); (vii) distribution fees and expenses paid by the Trust under any distribution plan adopted pursuant to Rule 12b-1 under the 1940 Act; (viii) interest and taxes of any kind or nature (including, but not limited to, income, excise, transfer and withholding taxes); (ix) fees and expense related to the provision of securities lending services; and (x) the fee payable to the Adviser. The internal expenses of pooled investment vehicles in which a Unitary Fee Fund may invest (acquired fund fees and expenses) are not expenses of such Unitary Fee Fund, and are not paid by ProShare Advisors. The payment or assumption by ProShare Advisors of any expenses of a Unitary Fee Fund that ProShare Advisors is not required by the investment advisory and management agreement to pay or assume shall not obligate ProShare Advisors to pay or assume the same or any similar expense of such Unitary Fee Fund, on any subsequent occasion.
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.