Return on asset (ROA) value for a stock is reported differently on Yahoo Finance and MarketWatch
"Why there is this huge difference? I am not able to reconcile Yahoo's answer of 5.75%, even using their definition for ROA of: Return on Assets Formula: Earnings from Continuing Operations / Average Total Equity This ratio shows percentage of Returns to Total Assets of the company.   This is a useful measure in analyzing how well a company uses its   assets to produce earnings. I suspect the ""Average Total Equity"" in their formula is a typo, but using either measure I cannot come up with 5.75% for any 12-month period. I can, however, match MarketWatch's answer by looking at the 2016 fiscal year totals and using a ""traditional"" formula of Net Income / Average Total Assets: I'm NOT saying that MatketWatch is right and Yahoo is wrong - MW is using fiscal year totals while Yahoo is using trailing 12-month numbers, and Yahoo uses ""Earnings from Continuing Operations"", but even using that number (which Yahoo calculates) I am not able to reconcile the 5.75% they give." IESC has a one-time, non-repeatable event in its operating income stream.  It magnifies operating income by about a factor of five.  It impacts both the numerator and the denominator.  Without knowing exactly how the adjustments are made it would take too much work for me to calculate it exactly, but I did get close to their number using a relatively crude adjustment rule. Basically, Yahoo is excluding one-time events from its definitions since, although they are classified as operating events, they distort the financial record.  I teach securities analysis and have done it as a profession.  If I had to choose between Yahoo and Marketwatch, at least for this security, I would clearly choose Yahoo.
"In 2014 the IRS announced that it published guidance in Notice 2014-21. In that notice, the answer to the first question describes the general tax treatment of virtual currency: For federal tax purposes, virtual currency is treated as property. General tax principles applicable to property transactions apply to transactions using virtual currency. As it's property like any other, capital gains if and when you sell are taxed. As with any capital gains, you're taxed on the ""profit"" you made, that is the ""proceeds"" (how much you got when you sold) minus your ""basis"" (how much you paid to get the property that you sold). Until you sell, it's just an asset (like a house, or a share of stock, or a rare collectible card) that doesn't require any reporting. If your initial cryptocurrency acquisition was through mining, then this section of that Notice applies: Q-8: Does a taxpayer who “mines” virtual currency (for example, uses computer resources to validate Bitcoin transactions and maintain the public Bitcoin transaction ledger) realize gross income upon receipt of the virtual currency resulting from those activities? A-8: Yes, when a taxpayer successfully “mines” virtual currency, the fair market value of the virtual currency as of the date of receipt is includible in gross income. See Publication 525, Taxable and Nontaxable Income, for more information on taxable income. That is to say, when it was mined the market value of the amount generated should have been included in income (probably on either Line 21 Other Income, or on Schedule C if it's from your own business). At that point, the market value would also qualify as your basis. Though I doubt there'd be a whole lot of enforcement action for not amending your 2011 return to include $0.75. (Technically if you find a dollar bill on the street it should be included in income, but usually the government cares about bigger fish than that.) It sounds like your basis is close enough to zero that it's not worth trying to calculate a more accurate value. Since your basis couldn't be less than zero, there's no way that using zero as your basis would cause you to pay less tax than you ought, so the government won't have any objections to it.  One thing to be careful of is to document that your holdings qualify for long-term capital gains treatment (held longer than a year) if applicable. Also, as you're trading in multiple cryptocurrencies, each transaction may count as a ""sale"" of one kind followed by a ""purchase"" of the other kind, much like if you traded your Apple stock for Google stock. It's possible that ""1031 like kind exchange"" rules apply, and in June 2016 the American Institute of CPAs sent a letter asking about it (among other things), but as far as I know there's been no official IRS guidance on the matter. There are also some related questions here; see ""Do altcoin trades count as like-kind exchanges?"" and ""Assuming 1031 Doesn't Apply To Cryptocurrency Trading"". But if in fact those exchange rules do not apply and it is just considered a sale followed by a purchase, then you would need to report each exchange as a sale with that asset's basis (probably $0 for the initial one), and proceeds of the fair market value at the time, and then that same value would be the basis of the new asset you're purchasing. Using a $0 basis is how I treat my bitcoin sales, though I haven't dealt with other cryptocurrencies. As long as all the USD income is being reported when you get USD, I find it unlikely you'll run into a lot of trouble, even if you technically were supposed to report the individual transactions when they happened. Though, I'm not in charge of IRS enforcement, and I'm not aware of any high-profile cases, so it's hard to know anything for sure. Obviously, if there's a lot of money involved, you may want to involve a professional rather than random strangers on the Internet. You could also try contacting the IRS directly, as believe-it-or-not, their job is in fact helping you to comply with the tax laws correctly. Also, there are phone numbers at the end of Notice 2014-21 of people which might be able to provide further guidance, including this statement: The principal author of this notice is Keith A. Aqui of the Office of Associate Chief Counsel (Income Tax & Accounting). For further information about income tax issues addressed in this notice, please contact Mr. Aqui at (202) 317-4718" If you have 100% of your money in one security that is inherently more risky than splitting your money 50/50 between two securities, regardless of the purported riskiness of the two securities. The calculations people use to justify their particular breed of diversification may carry some assumptions related risk/reward calculations.  But these particular justifications don't change the fact that spreading your money across different assets protects your money from value variances of the individual assets.  Splitting your $100 between Apple and Microsoft stock is probably less valuable (less well diversified) than splitting your money between Apple and Whole Foods stock but either way you're carrying less risk than putting all $100 in to Apple stock regardless of the assumed rates of return for any of these companies stock specifically. Edit: I'm sure the downvotes are because I didn't make a big deal about correlation and measuring correlation and standard deviations of returns and detailed portfolio theory.  Measuring efficacy and justifying your particular allocations (that generally uses data from the past to project the future) is all well and good.  Fact of the matter is, if you have 100% of your money in stock that's more stock risk than 25% in cash, 25% in bonds and 50% in stock would be because now you're in different asset classes.  You can measure to your hearts delight the effects of splitting your money between different specific companies, or different industries, or different market capitalizations, or different countries or different fund managers or different whatever-metrics and doing any of those things will reduce your exposure to those specific allocations.   It may be worth pointing out that currently the hot recommendation is a plain vanilla market tracking S&P 500 index fund (that just buys some of each of the 500 largest US companies without any consideration given to risk correlation) over standard deviation calculating actively managed funds.  If you ask me that speaks volumes of the true efficacy of hyper analyzing the purported correlations of various securities. Brokerage firms are required to report the number of shares being shorted.  This information is reported to the exchange (NYSE of NASDAQ) and is made public.  Most financial sites indicate the number of shares being shorted for a particular stock.  The image below from Yahoo finance shows 3.29 million shares of CMG were being shorted at the close of 9-28-2012.  This is over 12% of the total outstanding shares of CMG.  For naked short selling additional information is tracked.  If the brokerage is unable to borrow shares to deliver before the settlement date of a short sale then the transaction is recorded as fails-to-deliver.  No money or shares are exchanged since the brokerage is unable to deliver the shares that were agreed upon.  A large amount of fails-to-deliver transactions for a stock usually indicates an excessive amount of naked shorting.  When investors and brokerage firms start to aggressively short a stock they will do so without having borrowed the shares to sell.  This will result in a large amount of naked short selling.  When there are a large number of naked short sellers not all the sellers will be able to borrow the necessary shares before the settlement date and many fails-to-deliver transactions will be recorded. The SEC records the number of fails-to-deliver transactions. The table below summarizes the fails-to-deliver transactions from 1-1-2012 through 9-14-2012 (data obtained from here). The “Ext Amount” column shows the total dollar value of the transactions that failed ( i.e. Fail Qty * Share price ).  The “Volume” column is the total number of shares traded in the same time period.  The “% Volume” shows the percentage of shares that failed to deliver as a percentage of the total market volume. The table orders the data in descending order by the quantity of shares that were not delivered.  Most of the companies at the top of the list no longer exist.  For many of these companies, the quantity of shares that failed to deliver where many multiples of the number of shares traded during the same time period.  This indicates massive naked short selling as many brokerages where unable to find shares to borrow before the settlement date. More information here. The idea of a stockmarket is multiple people betting on the value of an asset and then getting paid the difference between their bet and the real value of the asset.  The goal being to keep the value of the stock as accurate as possible so capital is allocated to companies that will use it most efficiently.  The reward for people making these bets is a portion of that capital.    What you are suggesting is just a graph of the average happiness.  The difficult part of turning this into a market, is being able to assign value to happiness, value that you can gain or lose by choice.      Ironically, money is a indicator of happiness.  When apple came out with the iPhone, people saw it and decided it would make them happier if they owned it creating demand.  Investors noticed that people believed owning an iphone would make them happier so they bid up the price of AAPL stock.  People are happier with their iPhones and investors benefitted from this happiness and got cash allowing them to spend money on things to increase their happiness.    In order to extract happiness from the stock market a lot of other things come into play.  A biotech company curing cancer would be a solution to something that drastically decreases happiness.  Increasing alcohol sales might be a result of people trying to offset the sadness in the short term but in the long term it is a depressant and doesn't make you happy.  An individual might be happier with an extra $10B but overall 1 million people getting $10k each would increase average happiness much more.  But somebody like buffet can invest in companies that can generate way more happiness than just handing out cash.    The happiness report is an annual report of happiness.  Looking at these results next to the Gini coefficient (income inequality), and industry growth by country might start to give you an idea of what affects happiness.  For instance in Africa income inequality could sky rocket while the stock market plummets and happiness could still increase because of public health investments made years ago, causing the infant mortality rate to plummet.  If you want to think about this topic I recommend reading the great escape by Angus Deaton. You bought 1 share of Google at $67.05 while it has a current trading price of $1204.11. Now, if you bought a widget for under $70 and it currently sells for over $1200 that is quite the increase, no? Be careful of what prices you enter into a portfolio tool as some people may be able to use options to have a strike price different than the current trading price by a sizable difference. Take the gain of $1122.06 on an initial cost of $82.05 for seeing where the 1367% is coming. User error on the portfolio will lead to misleading statistics I think as you meant to put in something else, right? I wouldn't put too much stock in the guidance generically... it's more a measure of confidence in the company. When you listen to the earnings calls and start following a particular analyst, you'll understand where they come from when they kick out a number. Some personal finance packages can track basis cost of individual purchase lots or fractions thereof. I believe Quicken does, for example. And the mutual funds I'm invested in tell me this when I redeem shares. I can't vouch for who/what would make this visible at times other than sale; I've never had that need. For that matter I'm not sure what value the info would have unless you're going to try to explicitly sell specific lots rather than doing FIFO or Average accounting. I have not looked in details but apparently the company has (at least) a dual listing in Hong Kong (its main listing, ticker 700) and in the US (ticker TCTZF). It also has an ADR (TCEHY), the underlying of which is the HK line. The two US listings essentially trade at the same price and will provide very similar returns but a major difference is that TCTZF pays dividends in HKD whereas TCEHY pays its dividends in USD. The latter may be more convenient depending on the account you use to trade the stock. The ADR line is also more liquid.