Successful Trader's Cheat Sheet
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To realize digital cash you need a payment network with accounts, balances, and transaction. That‘s easy to understand. One major problem every payment network has to solve is to prevent the so-called double spending: to prevent that one entity spends the same amount twice. Usually, this is done by a central server who keeps record about the balances.
Only Invest in Mutual Funds You Understand: If you can't explain, quickly, succinctly, and with specificity, exactly how a mutual fund invests, what its underlying holdings are, what the risks of the mutual fund's investment strategy are, and why you own a particular mutual fund, you probably shouldn't have it in your portfolio.  It's much easier to measure, contain, and appreciate risk when you keep things simple.
Institutional prime and institutional municipal money market mutual funds are funds that do not qualify as retail funds—i.e., they may be held by institutional investors. These funds are subject to potential liquidity fees and redemption gates, and will price and transact at a floating NAV (meaning that the NAV will be priced to 4 decimal places, e.g. $1.0000, and will experience fluctuations from time to time).
Cryptocurrencies have been compared to Ponzi schemes, pyramid schemes[76] and economic bubbles,[77] such as housing market bubbles.[78] Howard Marks of Oaktree Capital Management stated in 2017 that digital currencies were "nothing but an unfounded fad (or perhaps even a pyramid scheme), based on a willingness to ascribe value to something that has little or none beyond what people will pay for it", and compared them to the tulip mania (1637), South Sea Bubble (1720), and dot-com bubble (1999).[79] The New Yorker has explained the debate based on interviews with blockchain founders in an article about the “argument over whether Bitcoin, Ethereum, and the blockchain are transforming the world”.[80]

Interest is usually calculated by compounding on a daily, monthly, quarterly or annual basis on money market accounts. Most money market accounts are likely to compound interest on a daily or monthly basis. The APY on an account includes the effect of compounding. So, when you compare APYs, you can tell which account is going to help your money grow the most.
The legal status of cryptocurrencies varies substantially from country to country and is still undefined or changing in many of them. While some countries have explicitly allowed their use and trade,[51] others have banned or restricted it. According to the Library of Congress, an "absolute ban" on trading or using cryptocurrencies applies in eight countries: Algeria, Bolivia, Egypt, Iraq, Morocco, Nepal, Pakistan, and the United Arab Emirates. An "implicit ban" applies in another 15 countries, which include Bahrain, Bangladesh, China, Colombia, the Dominican Republic, Indonesia, Iran, Kuwait, Lesotho, Lithuania, Macau, Oman, Qatar, Saudi Arabia and Taiwan.[52] In the United States and Canada, state and provincial securities regulators, coordinated through the North American Securities Administrators Association, are investigating "bitcoin scams" and ICOs in 40 jurisdictions.[53]
footnote*For the 10-year period ended June 30, 2019, 9 of 9 Vanguard money market funds outperformed their Lipper peer-group averages. Results will vary for other time periods. Only mutual funds and ETFs (exchange-traded funds) with a minimum 10-year history were included in the comparison. Source: Lipper, a Thomson Reuters Company. The competitive performance data shown represent past performance, which is not a guarantee of future results. View fund performance

As of November 2017, Bitcoin and other digital currencies are outlawed only in Bangladesh, Bolivia, Ecuador, Kyrgyzstan and Vietnam, with China and Russia being on the verge of banning them as well. Other jurisdictions, however, do not make the usage of cryptocurrencies illegal as of yet, but the laws and regulations can vary drastically depending on the country.
Industries generally need long-term loans, which are provided in the capital market. However, the capital market depends upon the nature of and the conditions in the money market. The short-term interest rates of the money market influence the long-term interest rates of the capital market. Thus, money market indirectly helps the industries through its link with and influence on long-term capital market.
What to watch for: Balances less than $5,000 earn 0.05 percent APY. So if you’re going to go below that amount, you probably should get an account with a lower minimum balance to get a competitive APY. There is also a $50 account closing fee if you close the platinum money market account within 90 days of account opening. Residents of Arizona, Florida, Illinois, Indiana, Kansas, Minnesota, Missouri and Wisconsin are excluded from opening this account.
It is important to note that, while money market funds are typically managed in a fairly safe manner, there would have been many more failures over this period if the companies offering the money market funds had not stepped in when necessary to support their fund (by way of infusing capital to reimburse security losses) and avoid having the funds break the buck. This was done because the expected cost to the business from allowing the fund value to drop—in lost customers and reputation—was greater than the amount needed to bail it out.[8]
As of February 2018, the Chinese Government halted trading of virtual currency, banned initial coin offerings and shut down mining. Some Chinese miners have since relocated to Canada.[32] One company is operating data centers for mining operations at Canadian oil and gas field sites, due to low gas prices.[33] In June 2018, Hydro Quebec proposed to the provincial government to allocate 500 MW to crypto companies for mining.[34] According to a February 2018 report from Fortune,[35] Iceland has become a haven for cryptocurrency miners in part because of its cheap electricity. Prices are contained because nearly all of the country's energy comes from renewable sources, prompting more mining companies to consider opening operations in Iceland.[citation needed]
Government Normally at least 99.5% of the fund’s total assets are invested in cash, U.S. government securities and/or repurchase agreements that are collateralized fully (i.e., collateralized by cash or government securities)—including at least 80% in U.S. government securities and repurchase agreements for those securities. Certain issuers of U.S. government securities (e.g., “Government-Sponsored Enterprises” such as Fannie Mae, Freddie Mac, and the Federal Home Loan Banks) are sponsored or chartered by Congress, but their securities are neither issued by nor guaranteed by the U.S. Treasury.
footnote*For the 10-year period ended June 30, 2019, 9 of 9 Vanguard money market funds outperformed their Lipper peer-group averages. Results will vary for other time periods. Only mutual funds and ETFs (exchange-traded funds) with a minimum 10-year history were included in the comparison. Source: Lipper, a Thomson Reuters Company. The competitive performance data shown represent past performance, which is not a guarantee of future results. View fund performance
Perks: One of the biggest perks you'll find with TIAA Bank is its "Yield Pledge," which maintains that its yield pledge money market account rate will always be competitive and in the top 5 percent. Its money market account also has no monthly fee, allows for mobile check deposits and is IRA-eligible. As long as you keep at least $5,000 in your yield pledge money market account, TIAA Bank will reimburse all ATM fees charged by other banks. Regardless of your balance, you’ll be reimbursed up to $15 for ATM fees incurred by using non-TIAA Bank ATMs.
“If the trend continues, the average person will not be able to afford to purchase one whole bitcoin in 2 years. As global economies inflate and markets exhibit signs of recession, the world will turn to Bitcoin as a hedge against fiat turmoil and an escape against capital controls. Bitcoin is the way out, and cryptocurrency as a whole is never going away, it’s going to grow in use and acceptance as it matures.”
Government Normally at least 99.5% of the fund’s total assets are invested in cash, U.S. government securities and/or repurchase agreements that are collateralized fully (i.e., collateralized by cash or government securities)—including at least 80% in U.S. government securities and repurchase agreements for those securities. Certain issuers of U.S. government securities (e.g., “Government-Sponsored Enterprises” such as Fannie Mae, Freddie Mac, and the Federal Home Loan Banks) are sponsored or chartered by Congress, but their securities are neither issued by nor guaranteed by the U.S. Treasury.