Total returns include changes in share price and reinvestment of dividends and capital gains, if any.
You may lose money by investing in a money market fund.
There's no "official" price -- just the last trade.
It only updates the prices for your other accounts. You put the ticker symbols in two lists, one for stocks and one for mutual funds.
Ok so the price changes every time a trade has occurred, sure.
Now I suppose for AAPL that happens almost every 500 microseconds or so, does NASDAQ present the public this course change, I doubt that. Stocks prices are determined whenever a buyer and seller agree to trade at a given price.
Performance data shown represents past performance and is no guarantee of future results.
Investment return and principal value will fluctuate, so you may have a gain or loss when shares are sold.