Ex-dividend date and time zones
Ex-Date is a function of the exchange, as well as the dividend. Consider Deutsche Bank AG, DB on the NYSE, DKR on Xetra. For a given dividend, each exchange sets the ex-date for trades on that exchange.  (See http://www.sec.gov/answers/dividen.htm for a description of how it works in the US; other exchanges/countries are similar.) This ex-date is normally based on the dividends record date, which is when you must be on the company's books as a shareholder to receive the dividend, and based on when trades for an exchange are settled. The ex-date is the first date for which trades on that date will not settle until after the record date. This means that the ex-date can be different for different exchanges. If you sell your shares on an exchange before the ex-date for that exchange, you will not get the dividend. If you sell your shares on or after the ex-date for the exchange, you do not get the dividend. So it depends on the time zone of the exchange. Most stock exchanges trade T+3, but this can still come into play if there are bank holidays in different countries at different times.
An option is freely tradable, and all options (of the same kind) are equal. If your position is 0 and you sell 1 option, your new position in that option is -1. If the counterparty to your trade buys or sells more options to close, open, or even reopen their position afterwards, that doesn't matter to your position at all. Of course there's also the issue with American and European Options. European Options expire at their due date, but American Options expire at their due date or at any time before their due date if the holder decides they expire. With American Options, if a holder of an American Option decides to exercise the option, someone who is short the same option will be assigned as the counterparty (this is usually random). Expiry is after market close, so if one of your short American Options expires early, you will need to reopen the position the next day. Keep in mind dividends for slightly increased complexity. American and European Options do not in any way refer to the continents they are traded on, or to the location of the companies. These terms simply describe the expiry rules. I know that in the case of cash dividends I will get the dividend as long as I bought the stock before the ex-date but what happens in the case of an stock dividend? This is same as cash dividends. You would receive the additional stock. "Oddly enough, in the USA, there are enough cost and tax savings between buy-and-hold of a static portfolio and buying into a fund that a few brokerages have sprung up around the concept, such as FolioFN, to make it easier for small investors to manage numerous small holdings via fractional shares and no commission window trades. A static buy-and-hold portfolio of stocks can be had for a few dollars per trade.  Buying into a fund involves various annual and one time fees that are quoted as percentages of the investment.  Even 1-2% can be a lot, especially if it is every year.  Typically, a US mutual fund must send out a 1099 tax form to each investor, stating that investors share of the dividends and capital gains for each year. The true impact of this is not obvious until you get a tax bill for gains that you did not enjoy, which can happen when you buy into a fund late in the year that has realized capital gains.  What fund investors sometimes fail to appreciate is that they are taxed both on their own holding period of fund shares and the fund's capital gains distributions determined by the fund's holding period of its investments. For example, if ABC tech fund bought Google stock several years ago for $100/share, and sold it for $500/share in the same year you bought into the ABC fund, then you will receive a ""capital gains distribution"" on your 1099 that will include some dollar amount, which is considered your share of that long-term profit for tax purposes. The amount is not customized for your holding period, capital gains are distributed pro-rata among all current fund shareholders as of the ex-distribution date. Morningstar tracks this as Potential Capital Gains Exposure and so there is a way to check this possibility before investing. Funds who have unsold losers in their portfolio are also affected by these same rules, have been called ""free rides"" because those funds, if they find some winners, will have losers that they can sell simultaneously with the winners to remain tax neutral.  See ""On the Lookout for Tax Traps and Free Riders"", Morningstar, pdf In contrast, buying-and-holding a portfolio does not attract any capital gains taxes until the stocks in the portfolio are sold at a profit.  A fund often is actively managed.  That is, experts will alter the portfolio from time to time or advise the fund to buy or sell particular investments. Note however, that even the experts are required to tell you that ""past performance is no guarantee of future results.""" I second the Yahoo! Finance key stats suggestion, but I like Morningstar even better: http://quote.morningstar.com/stock/s.aspx?t=roic They show projected yield, based on the most recent dividend; the declared and ex-dividend dates, and the declared amount; and a table of the last handful of dividend payments. Back to Yahoo, if you want to see the whole dividend history, select Historical Prices, and from there, select Dividends Only. http://finance.yahoo.com/q/hp?s=ROIC&a=10&b=3&c=2009&d=00&e=4&f=2012&g=v Are these PFIC rules new? No, PFIC rules are not new, they've been around for a very long time. what would that mean if a person owned a non-US company stock, like a   company in Europe that makes chocolate? Is that considered assets that   produces passive income? No. But if a person owned a non-US company stock like a company that holds a company that makes chocolate - that would be passive income. this is non-US mutual funds that hold foreign shares, like a mutual fund in India, not a US fund which owns Indian stocks? Non-US fund. For those of you who are tax advisors, is the time length (30 hours)   true for filing form 8621? I would suggest not to fill this form on your own. Find a tax adviser specializing on providing services to expats, and have her do this. 30 hours for a person who has never dealt with taxes on this level before is probably not enough to learn all about PFIC, the real number is closer to 300 hours. While ZeroHedge article may be a sales pitch, PFIC rules should frighten you if they apply to your investments. Do not take them lightly, as penalties are steep and if you don't plan ahead you may end up paying way too much taxes than you could have. Here is the definition of Ex-dividend date from the SEC: Once the company sets the record date, the stock exchanges or the National Association of Securities Dealers, Inc. fix the ex-dividend date. The ex-dividend date is normally set for stocks two business days before the record date. If you purchase a stock on its ex-dividend date or after, you will not receive the next dividend payment. Instead, the seller gets the dividend. If you purchase before the ex-dividend date, you get the dividend. The linked document discusses weekend, and holidays involved in the calculation. The difference between the record date and the ex-dividend is to allow for the three days of settlement. "At the bottom of Yahoo! Finance's S & P 500 quote Quotes are real-time for NASDAQ, NYSE, and NYSE MKT. See also delay   times for other exchanges. All information provided ""as is"" for   informational purposes only, not intended for trading purposes or   advice. Neither Yahoo! nor any of independent providers is liable for   any informational errors, incompleteness, or delays, or for any   actions taken in reliance on information contained herein. By   accessing the Yahoo! site, you agree not to redistribute the   information found therein. Fundamental company data provided by Capital IQ. Historical chart data   and daily updates provided by Commodity Systems, Inc. (CSI).   International historical chart data, daily updates, fund summary, fund   performance, dividend data and Morningstar Index data provided by   Morningstar, Inc. Orderbook quotes are provided by BATS Exchange. US   Financials data provided by Edgar Online and all other Financials   provided by Capital IQ. International historical chart data, daily   updates, fundAnalyst estimates data provided by Thomson Financial   Network. All data povided by Thomson Financial Network is based solely   upon research information provided by third party analysts. Yahoo! has   not reviewed, and in no way endorses the validity of such data. Yahoo!   and ThomsonFN shall not be liable for any actions taken in reliance   thereon. Thus, yes there is a DB being accessed that there is likely an agreement between Yahoo! and the providers." Here in Australia a stock price is usually highest just before a dividend and lowest just after a dividend. If you buy just after the dividend then you missed out until next time. There may be many other reasons why a stock may exhibit yearly, quarterly and monthly cycles.