Derivatives trading is the culmination of a wild year for bitcoin, which captured imaginations and investment around the world, propelled by its stratospheric gains, and its anti-establishment mission as a currency without the backing of a government or a central bank, and a payment system without a reliance on banks. The derivatives contracts should thrust bitcoin more squarely into the realm of regulators, banks and institutional investors. In addition to the contracts at Cboe and CME, which will start trading Dec. 18, Cantor Fitzgerald LP won approval from regulators to trade binary options, and LedgerX, a startup exchange, already trades bitcoin options.
There are other ways you can incorporate "bitcoin stock" into your portfolio as well. The Bitcoin Investment Trust (GBTC) is one notable option that operates similarly to an exchange-traded fund. It is a trust that owns bitcoins it is holding, and by buying shares of it, you can essentially bet on bitcoin value without actually owning any of your own (their bitcoins are secured using Xapo, Inc. as storage).
Just because there is this element of luck, however, does not mean that you necessarily shouldn’t play the odds, if you so believe with very good reason that those odds are in your favor. What you do have to make sure of, however, is that you have such good reason to believe that those odds are in your favor, and that you don’t put up more than you can afford to lose, given the odds. The key takeaway and lesson to be learned, again, is to invest, both in speculations and in ‘safer’ investments, based on firm knowledge of the underlying asset and intrinsic analysis, to the extent possible, and never merely based on price movements.
In the case of a watermelon, what we intuitively grasp is that there is some fundamental, intrinsic value to the watermelon, and a ‘fair’ price for it. We have a general understanding of what this price should be, and are more than happy to buy watermelons when they are on discount relative to their fair price, and are reticent to do so when they are being sold at a premium to their fair price.

According to Tolstoy, what lay behind the successful repelling of the French was not the genius or leadership of Russia’s leaders but rather the acknowledgment that victory could not be attributed to one or even a group of factors but quite simply, everything. To Tolstoy, the role of the individual in history was inevitably subservient to the greater panoply of events within which that actor operated.
No. 3: Institutional quality custody solutions could come to market soon: There is an urgent need for qualified custodians to safeguard the growing amount of crypto assets. Very few crypto custodians meet the strict security requirements demanded by regulators and institutional investors. Coinbase, one of the more popular exchanges, has launched custody services by partnering with Electronic Transaction Clearing (ETC), a regulated broker-dealer. ItBit and Xapo have also begun to offer similar services and we expect more to follow.
Steindorff: Distributed Global Fund II is a long-only, stage agnostic investor in protocols. We invest in the tokens of established protocols and in the seed and pre-ICO rounds of early stage protocols. In either case, we look for protocols that are well positioned to capture market share from centralized incumbents. The protocols we invest in share three common traits: they are tokenized, open source and decentralized. We believe protocols with these characteristics represent a paradigm shift in how human economic behavior is organized and incentivized. This shift has the potential to fundamentally alter many of the world’s largest industries, and create investment opportunities that are desirable for thoughtful, long-term investors. It is important to note that we don’t employ leverage and we seek to be tax efficient, our investors are looking for broad exposure to this new digital asset class while reducing taxable events, transaction costs and exposure to unnecessary risks. 
While the adjusted outlook lists cryptocurrency instability as a possible risk factor, it also states that “we continue to believe that such declines will not negatively impact the performance of broader financial assets, because cryptocurrencies represent just 0.3 percent of world GDP as of mid-2018.” The report adds that cryptocurrencies “would not retain value in their current incarnation.”
Trustlessness in this sense is a huge component and advantage of bitcoin and cryptocurrency at large. Another ground-breaking innovation the blockchain introduces is the concept of a smart contract, or a contract that similarly requires no trust or middleman to mediate, but is rather contractually executed in a deterministic fashion through code run on the blockchain.
While futures products still carry unique and often significant risks, they can potentially provide a more regulated and stable environment to provide some exposure to bitcoin as a commodity as well. You should carefully consider whether trading in bitcoin futures is appropriate for you in light of your experience, objectives, financial resources, and other relevant circumstances.