How can I make a profit by selling a stock short?
"Being ""long"" - expecting the price to go up to make a profit - is a two step process:  1) buy 2) sell Being ""short"" - expecting the price to go down to make a profit - is a 5 step process:  1) borrow someone else's asset 2) sell their asset on the open market to somebody else a third party 3) pocket the proceeds of the sell for your own account 4) buy an identical asset for a cheaper price 5) return this identical asset to the person that let you borrow their asset if this is successful you keep the difference between 3) and 4)" How so? If i sell short, then i make a profit only if the price goes down so i can buy back at a lower price. Yes, but if the price is going up then you would go long instead. Shorting a stock (or any other asset) allows you to profit when the price is going down. Going long allows you to profit when the price is going up. In the opposite cases, you lose money. In order to make a profit in either of those situations, you have to accurately assess which way the price will trade over the period of time you are dealing with. If you make the wrong judgment, then you lose money because you'll either sell for a lower price than you bought (if you went long), or have to buy back at a higher price than you sold for (if you went short). In either case, unless the trader can live with making a short-term loss and recouperating it later, one needs a good stop-loss strategy.
I'm just began playing in the stock   market. I assume you mean that you're not using real money, but rather you have an account with a stock simulator like the one Investopedia offers. I am hopeful that's the case due to the high level of risk involved in short selling like you're describing. Here is another post about short selling that expands a bit on that point. To learn much more about the ins and outs of short selling I will point again to Investopedia. I swear I don't work for them, but they do have a great short selling tutorial.  When you short sell a stock you are borrowing the stock from your broker. (The broker typically uses stock held by one or more of his clients to cover the loan.) Since it's basically a loan you pay interest. Of course the longer you hold it the more interest you pay. Also, as Joe mentioned there are scenarios in which you may be forced to buy the stock (at a higher price than you sold it). This tends to happen when the stock price is going against the short sell (i.e. you lose money). Finally, did anyone mention that the potential losses in a short sell are infinite? "Pay someone a fee to borrow their private Uber shares, then sell those private shares to someone else, then find someone else you can buy their private shares from for less than the net of the proceeds you made selling the borrowed shares you sold plus the fees you've paid to the first person and return your newly purchased shares back to the person you initially borrowed the shares from. On a serious note, Uber is private; there is no liquid public market for the shares so there is no mechanism to short the company.  The valuations you see might not even be legitimate because the company's financials are not public.  You could try to short a proxy for Uber but to my knowledge there is no public ""rideshare""/taxi service business similar enough to Uber to be a reasonably legitimate proxy." "Aganju has mentioned put options, which are one good possibility. I would suggest considering an even easier strategy: short selling.  Technically you are borrowing the stock from someone and selling it.  At some point you repurchase the stock to return to the lender (""covering your short"").  If the stock price has fallen, then when you repurchase it, it will be cheaper and you keep the profit. Short selling sounds complicated but it's actually very easy--your broker takes care of all the details.  Just go to your brokerage and click ""sell"" or ""sell short.""  You can use a market or limit order just like you were selling something you own.  When it sells, you are done.  The money gets credited to your account.  At some point (after the price falls) you should repurchase it so you don't have a negative position any more, but your brokerage isn't going to hassle you for this unless you bought a lot and the stock price starts rising.  There will be limits on how much you can short, depending on how much money is in your account.  Some stocks (distressed and small stocks) may sometimes be hard to short, meaning your broker will charge you a kind of interest and/or may not be able to complete your transaction. You will need a margin account (a type of brokerage account) to either use options or short sell.  They are easy to come by, though. Note that for a given amount of starting money in your account, puts can give you a much more dramatic gain if the stock price falls.  But they can (and often do) expire worthless, causing you to lose all money you have spent on them.  If you want to maximize how much you make, use puts.  Otherwise I'd short sell. About IPOs, it depends on what you mean.  If the IPO has just completed and you want to bet that the share price will fall, either puts or short selling will work.  Before an IPO you can't short sell and I doubt you would be able to buy an option either. Foreign stocks?  Depends on whether there is an ADR for them that trades on the domestic market and on the details of your brokerage account.  Let me put it this way, if you can buy it, you can short sell it." You could hold a long position in some company XXXX and then short your own shares (assuming your broker will let you do that).  The dividend that would have gone to you would then go to whoever is holding the shares you short sold.  You just don't get a dividend.  If you're going to short in a smart way...  do it on a stock you otherwise believe in, but use it to minimize the pull-backs on the way up. When you want to short a stock, you are trying to sell shares (that you are borrowing from your broker), therefore you need buyers for the shares you are selling.  The ask prices represent people who are trying to sell shares, and the bid prices represent people who are trying to buy shares. Using your example, you could put in a limit order to short (sell) 1000 shares at $3.01, meaning that your order would become the ask price at $3.01.  There is an ask price ahead of you for 500 shares at $3.00.  So people would have to buy those 500 shares at $3.00 before anyone could buy your 1000 shares at $3.01. But it's possible that your order to sell 1000 shares at $3.01 never gets filled, if the buyers don't buy all the shares ahead of you.  The price could drop to $1.00 without hitting $3.01 and you will have missed out on the trade. If you really wanted to short 1000 shares, you could use a market order.  Let's say there's a bid for 750 shares at $2.50, and another bid for 250 shares at $2.49.  If you entered a market order to sell 1000 shares, your order would get filled at the best bid prices, so first you would sell 750 shares at $2.50 and then you would sell 250 shares at $2.49. I was just using your example to explain things.  In reality there won't be such a wide spread between the bid and ask prices.  A stock might have a bid price of $10.50 and an ask price of $10.51, so there would only be a 1 cent difference between putting in a limit order to sell 1000 shares at $10.51 and just using a market order to sell 1000 shares and getting them filled at $10.50. Also, your example probably wouldn't work in real life, because brokers typically don't allow people to short stocks that are trading under $5 per share. As for your question about how often you are unable to make a short sale, it can sometimes happen with stocks that are heavily shorted and your broker may not be able to find any more shares to borrow. Also remember that you can only short stocks with a margin account, you cannot short stocks with a cash account. When you set up a short sale for equities you are borrowing stock from someone else; typically another client at the broker.  The broker usually buries an agreement to let your shares be borrowed for short sales in your account details.  So if Client A wants to short a stock, he borrows stock from Client B to do the short sale (it's usually not this direct as they can borrow from many clients).  If Client B then wants to sell his shares; if the broker can't shift around assets to find another client's shares to let Client A borrow; then he has to close the short position out because he doesn't have the shares in the brokerage to let Client A borrow to short anymore. Short sellers have to pay interest on the borrowings to the shareholders. Although many times brokers don't pass on these earnings to the shareholders, this is the exchange. "They are not selling stocks. They are selling OJ futures contracts. Selling a futures contract at 142 gives the buyer the right to buy a fixed number of pounds of orange juice concentrate (""OJ"") on a future date at 142 cents per pound. The seller has an obligation to suppy that fixed number of pounds of OJ to the buyer on the future date for 142 cents per pound. When the seller turns around and buys future contracts at 29, the seller gets the right to buy OJ on a future date at 29. This ""zeros his position"" -- meaning he's guaranteed himself the ability to deliver the pounds of OJ he was obligated to supply when he sold futures contracts at 142. And since he'll only have to pay 29 cents per pound, and he'll be selling the OJ for 142 per pound, he'll walk away with 113 cents of profit for every pound sold. You can read a blow-by-blow account of what Winthorpe and Valentine did at the end of ""Trading Places"" here and here. Note that what they did would not be legal today under the ""Eddie Murphy rule"", which prohibits trades based on illicitly obtained government information." The point of short-selling as a separate instrument is that you can you do it when you can't sell the underlying asset... usually because you don't actually own any of it and in fact believe that it will go down. Shorting allows you to profit from a falling price. Another (non-speculative) possibility is that you don't have the underlying asset right now (and thus can't sell it) but will get it at a certain point in the future, e.g. because it's bonds that you've used to guarantee a loan... or grain that's still growing on your fields. I'm not saying I'm so sure as to start shorting tech stocks (with market volatility what it is nowadays, you could lose money because bankers got a bailout and everything went up irrespective of its actual earnings).  But I'm so sure as to say that selling any stock you've got in small tech companies and avoiding investing in start-ups is probably a good idea. You sold a call, and have a risk if the stock rises.  You bought a put and gain when the stock drops. You, sir, have a synthetic short position.  It's Case 3 from your linked example: Suppose you own Long Stock and the company is going to report earnings   but you’re going on vacation. How can you hedge your position without   selling your stock? You can short the stock synthetically with   options! Short Stock = Short Call + Long Put They conclude with the net zero remark, because the premise was an existing long position. A long plus this synthetic short results in a neutral set of positions (and the author's ability to go on vacation not concerned about any movement in the stock.) "You can't short a stock unless there is someone willing and able to ""lend"" shares to you. And there are several reasons why that might not be the case. First, BSFT is a ""new"" stock, which means that NO ONE has held it very long. It's much easier to short IBM or Exxon Mobil, where there are some long-term holders who would like to earn a little extra money lending you THEIR shares. But if ""everyone"" involved is busy buying or selling the stock, there won't be many people to lend it. That's not manipulation, that's just the market. Another reason may be a large ""short"" interest. That is many OTHERS have shorted it before you. That's dangerous for you, because if some lenders want to pull their shares off the market, they can cause a ""short squeeze"" that will drive the price much higher.  And stock shortages can be orchestrated by the company or large investors to artificially drive the price higher. Unless you have a lot of experience, don't try shorting small cap stocks. Try to gain some experience with large caps like IBM or Exxon Mobil first. Those are stocks that people at least can't ""play games"" with. YOu will win or lose based on the market itself." Yes, you call the broker and tell him to use those shares to deliver to the short position. You can buy and sell stocks, if you like. You'll have to pay taxes on any profits. And short-term is speculating, not investing, and has high risk "Your statement - ""not practical"" -  presumes that the primary goal of having the store is to allow the store to thrive. But if you subscribe to the idea that stores and other companies are just organizations of people, that presumption is false  we humans form social structures that benefit people who live within the social structures - towns, cities, teams, companies, political parties.   the success of ""the store""  or the company or the team, or the ""city"", is not the primary goal. The success of the people ought to be the primary goal.   Example: hospitals weren't originally conceived to make money and grow. They were conceived to aid people who were sick. These days hospitals make a LOT OF MONEY , despite being classified as nonprofit institutions in the USA. As a result we have bad medical practice - over prescription of opioids, over use of surgeries, over-use of diagnostic tests, etc., - all of which benefits the hospital but not the patients.   It's not always a clear line - look at the real jobs vs environment issues in mining or fracking.   But the balance we have struck now, gives great profits to the companies (profits are at record highs) while income inequality is also at record highs. How is that sensible or sustainable. Or moral?   My key point here is that your statement that ""it's not practical for the store"" is misguided. The store's well being cannot be the primary goal of commerce. We need to place a higher priority on benefiting people. (Broadly framed - not just owners of the store)"