Is there a reliable way to find, if a stock or company is heading bankruptcy?
You can avoid companies that might go bankrupt by not buying the stock of companies with debt. Every quarter, a public company must file financials with the EDGAR system called a 10-Q. This filing includes unaudited financial statements and provides a continuing view of the company's financial position during the year. Any debt the company has acquired will appear on this filing and their annual report. If servicing the debt is costing the company a substantial fraction of their income, then the company is a bankruptcy risk. Research the company. Obtain and read their current and past financial statements. Find and read news stories about them. Look for patterns and draw conclusions. Or diversify to the point where one company failing doesn't hurt you significantly. Or both.
Today, when finding reliable tenants is a tough task, they leave no stone unturned to search for suitable tenants for your property. The best part is that when you have the support of a good property management company, you can sit back and relax, as they would take away your entire burden about the handling of your property. "This could be another reason.  ""Companies buy their own stock in the market place to reduce the number of shares outstanding, and thus boosts the earnings per share. It also boosts the stock price, which benefits management that has stock options. "" Taken from this article. http://www.forbes.com/sites/investor/2014/01/06/the-most-reliable-indicator-of-an-approaching-market-top/ and this article ""Why are stock rising?"" may help as well.  http://www.forbes.com/sites/investor/2013/12/23/why-are-stocks-rising/" Hopefully, before you invested in this stock, you evaluated the company.  You looked at the financial information about the company and where the company was headed, and evaluated whether the stock was undervalued or overvalued.  Hopefully, you determined that the stock was undervalued at the time you bought it. The thing to do now is to reevaluate the stock.  Do you think the stock is overvalued or undervalued right now?  If you didn't own it, would you buy it today?  Instead of looking at the past performance of the stock, you want to try to determine which direction the stock will go from today.  If you wouldn't buy it today at it's current price, then you should sell. If you have no idea how to do this evaluation, neither do I.  For me, with the investing knowledge I have right now, investing in an individual stock would be way too risky.  If you don't know how to evaluate a stock and determine if it is a good buy or not, then you should stay away from individual stocks and instead invest in stock mutual funds, which lower the risk by diversifying over lots of stocks. "If you look at the biotech breakdown, you'll find a lot of NAs when it comes to P/E since there are many young biotech companies that have yet to make a profit.  Thus, there may be something to be said for how is the entire industry stat computed. Biotechnology can include pharmaceutical companies that can have big profits due to patents on drugs. As an example, look at Shire PLC which has a P/E of 1243 which is pretty high with a Market Capitalization of over a billion dollars, so this isn't a small company.  I wonder what dot-com companies would have looked like in 1998/1999 that could well be similar as some industries will have bubbles you do realize, right? The reason for pointing out the Market Capitalization is that this a way to measure the size of a company, as this is merely the sum of all the stock of the company.  There could be small companies that have low market capitalizations that could have high P/Es as they are relatively young and could be believed to have enough hype that there is a great deal of confidence in the stock.  For example, Amazon.com was public for years before turning a profit.  In being without profits, there is no P/E and thus it is worth understanding the limitations of a P/E as the computation just takes the previous year's earnings for a company divided by the current stock price.  If the expected growth rate is high enough this can be a way to justify a high P/E for a stock.  The question you asked about an industry having this is the derivation from a set of stocks.  If most of the stocks are high enough, then whatever mean or median one wants to use as the ""industry average"" will come from that." There are 2 primary ways to bet against a stock if you think it will decline. The first is to short sell shares of that stock the second is to buy put options (I would also add that selling naked call options would also be a bet against but I don't believe that is as common as the other 2 mentioned methods). The problem with short selling an IPO is that you first have to borrow the shares you are going to sell. Since the shares are privately held prior to the IPO that can be problematic. Even after the IPO you may have to wait a bit before shares become available to borrow.  The problem with options (either buying puts or seeking naked calls) is similar. Options are traded on a different exchange than the stock and they have their own requirements that a stock must meet to have options traded. Both of these problems eventually correct themselves however, not in time for you to catch the initial fall you seem to be looking for. You are omitting how the company made 120 million in the previous year and may be facing a shrinking market and thus have poor future prospects. If the company is shrinking, what will the shares be worth down the road. Remember companies like AOL or Blackberry? There was a time they had big profits before things changed which is the part you aren't considering here. If the company has lost something big on its earnings, e.g. the oil wells it owned have run out of reserves or the patents on its key drugs have expired, then there could be the perception that the company won't be able to compete in the future to continue to deliver earnings. Some companies may well end up going broke as one could look at GM for a company that used to be one of the largest car companies in the world and yet it ended up going broke. You can't know. It's not like every stock has options traded on it, so until you either see the options listed or a company announcement that option will trade on a certain date, there's no way to be sure. I think that's a bad way to look at it. What if the price of that asset never fails below that value again? Do you just never buy?  I think a better way to operate is to do your due diligence, and if the asset you're looking at holds value for you at its current price, then jump in. Otherwise - look somewhere else.