What does “/” and “^” mean in ticker symbols? How to translate these symbols into yahoo?
On NASDAQ the ^ is used to denote other securities and / to denote warrents for the underlying company. Yahoo maybe using some other designators for same. There isn't a single universal way to reference a stock, there are 4 major identifiers with many different flavours of exchange ticker (see xkcd:Standards) I believe CUSIPs and ISINs represent a specific security rather than a specific listed instrument. This means you can have two listed instruments with one ISIN but different SEDOLs because they are listed in different places. The difference is subtle but causes problems with settlement Specifically on your question (sorry I got sidetracked) take a look at  CQS Symbol convention to see what everything means
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. This is just a shot in the dark but it could be intermarket data. If the stock is interlisted and traded on another market exchange that day then the Yahoo Finance data feed might have picked up the data from another market. You'd have to ask Yahoo to explain and they'd have to check their data. This looks more like an aggregation problem. The Dividends and Capital Gains are on quite a few occassions not on same day and hence the way Yahoo is aggregating could be an issue. There is a seperate page with Dividends and capital gains are shown seperately, however as these funds have not given payouts every year, it seems there is some bug in aggregating this info at yahoo's end. For FBMPX http://uk.finance.yahoo.com/q/hp?s=FBMPX&b=2&a=00&c=1987&e=17&d=01&f=2014&g=v https://fundresearch.fidelity.com/mutual-funds/fees-and-prices/316390681 http://uk.finance.yahoo.com/q/pr?s=FBMPX "This is called ""change"" or ""movement"" - the change (in points or percentage) from the last closing value. You can read more about the ticker tape on Investopedia, the format you're referring to comes from there." "I don't understand what the D, to the right of APPLE INC, means. This means the graph below is for the ""D"". There is selection at top and you can change this to Minutes [5,20,60,etc], Day, Week [W], Month [M] I'm not understanding how it can say BATS when in actuality AAPL is listed on the NASDAQ. Do all exchanges have info on every stock even from other exchanges and just give them to end-users at a delayed rate? BATS is an exchange. A stock can be listed on multiple exchange. I am not sure if AAPL is also listed on BATS. However looks like BATS has agreement with major stock exchanges to trade their data and supplies this to trading.com" The difference is that Yahoo is showing the unadjusted price that the security traded for on that date, while google is adjusting for price splits. This means that Google is showing how much you would have had to pay to get what is now one share. Since 1979, JNJ has split 3-for-1 once, and 2-for-1 four times. 3x2x2x2x2 = 48. If you bought 1 share at that time, you would now have 48 shares today. Yahoo is showing a price of $66 for what was then 1 share. $66/48 = 1.375, which Google rounds to 1.38. You can see this if you get the prices from May 14-21, 1981. The stock split 3-for-1, and the price dropped from 108 to 36.38. Yahoo's adjusted close column has not been accurate since they re-wrote the Finance website. It now just represents the closing price. The other relevant field on Yahoo is the Adj. Close. This adjusts for splits, but also adjusts for dividends. Hence why this doesn't match either the Google or Yahoo numbers. My guess is that both the blue and pinkish lines are hand drawn by someone. The blue line indicates 'higher lows' while the pinkish line represents 'higher highs'. Together they form a trading channel in which you can expect future prices to be (unless there is some unanticipated event that occurs).  Edit: since the price broke out above the trading channel at the start of the year (and is verified by the increase in volume at that time) something must have occurred to increase the value of the stock.  Edit2: this news likely explains the breakout in price. Edit3: this chart shows that the stock price is now 'seeking equilibrium'. The price will, likely, be volatile over the next few days or weeks. The biggest issue with Yahoo Finance is the recent change to the API in May. The data is good quality, includes both dividend/split adjusted and raw prices, but it's much more difficult to pull the data with packages like R quantmod than before.  Google is fine as well, but there are some missing data points and you can't unadjust the prices (or is it that they're all unadjusted and you can't get adjusted? I can't recall). I use Google at home, when I can't pull from Bloomberg directly and when I'm not too concerned with accuracy.  Quandl seems quite good but I haven't tried them. There's also a newer website called www.alphavantage.co, I haven't tried them yet either but their data seems to be pretty good quality from what I've heard. You may refer to project http://jstock.sourceforge.net. It is open source and released under GPL. It is fetching data from Yahoo! Finance, include delayed current price and historical price. "BestInvest is a UK site looking at that URL, base on the ""co.uk"" ending. Yahoo! Finance that you use is a US-based site unless you add something else to the URL. UK & Ireland Yahoo! Finance is different from where you were as there is something to be said for where are you looking. If I was looking for a quarter dollar there are Canadian and American coins that meet this so there is something to be said for a higher level of categorization being done. ""EUN.L"" would likely denote the ""London"" exchange as tickers are exchange-specific you do realize, right?" Should be noted that pacoverflow's answer is wrong. Yahoo back-adjusts all the previous (not current or future) values based on a cumulative adjustment factor. So if there's a dividend ex-date on December 19, Yahoo adjusts all the PREVIOUS (December 18 and prior) prices with a factor which is: 1 - dividend / Dec18Close I have watched the ticker when I have made a transaction. About ¼ of the time my buy (or sell) actually moves the going price. But that price movement is wiped out by other transactions within two (or so) munites.  Is your uncle correct? Yes. Will anyone notice? No. "The graphing tools within Yahoo offer a decent level of adjustment. You can easily choose start and end years, and 2 or more symbols to compare.  I caution you. From Jan 1980 through Dec 2011, the S&P would have grown $1 to $29.02, (See Moneychimp) but, the index went up from 107.94 to 1257.60, growing a dollar to only $11.65. The index, and therefore the charts, do not include dividends. So long term analysis will yield false results if this isn't accounted for.  EDIT  - From the type of question this is, I'd suggest you might be interested in a book titled ""Stock Market Logic."" If memory serves me, it offered up patterns like you suggest, seasonal, relations to Presidential cycle, etc. I don't judge these approaches, I just recall this book exists from seeing it about 20 years back." P/E = price per earnings. low P/E (P/E < 4) means stock is undervalued. Go to http://www.isincodes.net/, and enter your data. For example entering Alphabet gives you the ISIN US02079K1079 (for standard US shares). If you want to understand the number format (and build them yourself), check wikipedia: https://en.wikipedia.org/wiki/International_Securities_Identification_Number