How come I can't sell short certain stocks? My broker says “no shares are available”
In finance, short selling (also known as shorting or going short) is the practice of selling assets, usually securities, that have been borrowed from a third party (usually a broker) with the intention of buying identical assets back at a later date to return to the lender. Remember your broker has to borrow it from somewhere, other clients or if they hold those specific stocks themselves. So if it isn't possible for them to lend you those stocks, they wouldn't. High P/E stocks would find more sellers than buyers, and if the broker has to deliver them, it would be a nightmare for him to deliver all those stocks, which he had lent you(others) back to whom he had borrowed from, as well as to people who had gone long(buy) when you went short(sell). And if every body is selling there is going to be a dearth of stocks to be borrowed from as everybody around is selling instead of buying. Shorts are difficult because you have to find someone to lend the stock to you. In contrast, put options don't require that. They also have some nice properties like you're only out the contract price. The options chain for BSFT will give you an idea of where the market is.  Keep in mind that BSFT only IPO'd last year and announced blowout earnings recently. Make sure the P:E you're looking at is using recent earnings reports! "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."
"I used to be in research department for big financial data company.   Tell your son that there are three factors: Most people think that net sales vs. expectations is the only factor.  It might not even be the biggest.  It is simply how much money did company make.  Note that this is not how many units they sold.  For most companies they will have adjustable pricing and incentives in their sector.  For example let's talk about a new company selling Superman Kid's Bikes (with a cape the flips out when you hit a certain speed).  The company has it in Walmart at one price, Target at another, Toys R' Us even cheaper, Amazon (making more profit there), and other stores.  They are doing ""OK"" come Dec. 1 but holiday season being half way over they slash price from $100 to $80 because they have tons of inventory.  What are looking at her is how much money did they make.  Note that marketing, advertising, legal (setting up contracts) are a bit fixed. In my opinion consumer sentiment is the #1 thing for a company that sells a product.  Incredible consumer sentiment is like millions of dollars in free advertising.  So let's say Dec. 15th comes and the reviews on the Superman Bike are through the roof.  Every loves it, no major defects.  Company can't even supply the retailers now because after slashing the price it became a great buy.  A common investor might be pissed that some dummy at the company slashed the prices so they could have had a much better profit margin, but at the same time it wouldn't have led to an onslaught of sales and consumer sentiment. And the last area is product sell-off.  This doesn't apply to all product but most.  Some products will only have a technology shelf life, some will actually go bad or out of fashion, and even selling Superman bikes you want to get those to the store because the product is so big.  So ignoring making a profit can a company sell off inventory at or around cost.  If they can't, even if they made a profit, their risk factor goes up. So let's get back to Superman Bikes.  This is the only product company ABC has.  They had expected holiday sales at 100 million and profits at 40 million.  They ended up at 120 million and 44 million.   Let's say their stock was $20 before any information was gathered by the public (remember for most companies info is gathered daily now so this is rather simplistic).  So you might expect that the stock would rise to maybe $24 - to which if you were an investor is a great profit. However this company has a cult consumer following who are waiting for the Captain America Bike (shoots discs) and the Hulk Bike (turns green when you go fast).  Let's say consumer sentiment and projections base off that put next holiday sales at $250 million.  So maybe the company is worth $40 a share now.  But consumer sentiment is funny because not only does it effect future projections but it also effects perceived present value of company - which may have the stock trading at $60 a share (think earnings and companies like Google).  Having a company people feel proud owning or thinking is cool is also a indicator or share worth. I gave you a really good example of a very successful company selling Superman Bikes... There are just as many companies that have the opposite happening.  Imagine missing sales goals by a few million with bad consumer feedback and all of a sudden your company goes from $20 to $5 a share." "It depends on many factors, but generally, the bid/ask spread will give you an idea. There are typically two ways to buy (or sell) a security: With a limit order, you would place a buy for 100 shares at $30-. Then it's easy, in the worst case you will get your 100 shares at $30 each exactly. You may get lucky and have the price fall, then you will pay less than $30. Of course if the price immediately goes up to say $35, nobody will sell at the $30 you want, so your broker will happily sit on his hands and rake in the commission while waiting on what is now a hail Mary ask. With a market order, you have the problem you mention: The ticker says $30, but say after you buy the first 5 shares at $30 the price shoots up and the rest are $32 each - you have now paid on average $31.9 per share. This could happen because there is a limit order for 5 at $30 and 200 at $32 (you would have filled only part of that 200). You would be able to see these in the order book (sometimes shown as bid/ask spread or market depth). However, the order book is not law. Just because there's an ask for 10k shares at $35 each for your $30 X stock, doesn't mean that by the time the price comes up to $35, the offer will still be up. The guy (or algorithm) who put it up may see the price going up and decide he now wants $40 each for his 10k shares. Also, people aren't obligated to put in their order: Maybe there's a trader who intends to trade a large volume when the price hits a certain level, like a limit order, but he elected to not put in a limit order and instead watch the ticker and react in real time. Then you will see a huge order suddenly come in out of nowhere. So while the order book is informative, what you are asking is actually fundamentally impossible to know fully, unless you can read the minds of every interested trader. As others said, in ""normal"" securities (meaning traded at a major exchange, especially those in the S&P500) you simply can't move the price, the market is too deep. You would need millions of dollars to budge the price, and if you had that much money, you wouldn't be asking here on a QA site, you would have a professional financial advisor (or even a team) that specializes in distributing your large transaction over a longer time to minimize the effect on the market. With crazier stocks, such as OTC and especially worthless penny stocks with market caps of $1 mil or less, what you say is a real problem (you can end up paying multiples of the last ticker if not careful) and you do have to be careful about it. Which is why you shouldn't trade penny stocks unless you know what you're doing (and if you're asking this question here, you don't)." "Stock prices are set by bidding. In principle, a seller will say, ""I want $80."" If he can't find anyone willing to buy at that price, he'll either decide not to sell after all, or he'll lower his price. Likewise, a buyer will say, ""I'll pay $70."" If he can't find anyone willing to pay that price, he'll either decide not to buy or he'll increase his price. For most stocks there are many buyers and many sellers all the time, so there's a constant interplay. The typical small investor has VERY little control of the price. You say, ""I want to buy 10 shares of XYZ Corporation and my maximum price is $20."" If the current trending price is below $20, your broker will buy it for you. If not, he won't. You normally have some time limit on the order, so if the price falls within your range within that time period, your broker will buy. That is, your choice is basically to buy or not buy, or sell or not sell, at the current price. You have little opportunity to really negotiate a better price. If you have a significant percentage of a company's total stock, different story. In real life, most stocks are being traded constantly, so buyers and sellers both have a pretty good idea of the current price. If the last sale was ten minutes ago for $20, it's unlikely anyone's going to now bid $100. They're going to bid $20.50 or $19.25 or some such. If the last sale was for $20 and your broker really came to the floor and offered to buy for $100, I suppose someone would sell to him very quickly before he realized what an outrageous price this was. I use TD Ameritrade, and on their web site, if I give a price limit on a buy that's more than a small percentage above the last sale, they reject it as an error. I forget the exact number but they won't even accept a bid of $80 if the stock is going for $40. They might accept $41 or $42, something like that." "Not all call options that have value at expiration, exercise by purchasing the security (or attempting to, with funds in your account).   On ETNs, they often (always?) settle in cash.  As an example of an option I'm currently looking at, AVSPY, it settles in cash (please confirm by reading the documentation on this set of options at http://www.nasdaqomxtrader.com/Micro.aspx?id=Alpha, but it is an example of this).  There's nothing it can settle into (as you can't purchase the AVSPY index, only options on it).  You may quickly look (wikipedia) at the difference between ""American Style"" options and ""European Style"" options, for more understanding here. Interestingly I just spoke to my broker about this subject for a trade execution.  Before I go into that, let me also quickly refer to Joe's answer:  what you buy, you can sell.  That's one of the jobs of a market maker, to provide liquidity in a market.  So, when you buy a stock, you can sell it.  When you buy an option, you can sell it.  That's at any time before expiration (although how close you do it before the closing bell on expiration Friday/Saturday is your discretion).  When a market maker lists an option price, they list a bid and an ask.  If you are willing to sell at the bid price, they need to purchase it (generally speaking).  That's why they put a spread between the bid and ask price, but that's another topic not related to your question -- just note the point of them buying at the bid price, and selling at the ask price -- that's what they're saying they'll do. Now, one major difference with options vs. stocks is that options are contracts. So, therefore, we can note just as easily that YOU can sell the option on something (particularly if you own either the underlying, or an option deeper in the money).  If you own the underlying instrument/stock, and you sell a CALL option on it, this is a strategy typically referred to as a covered call, considered a ""risk reduction"" strategy.  You forfeit (potential) gains on the upside, for money you receive in selling the option. The point of this discussion is, is simply: what one buys one can sell;  what one sells one can buy -- that's how a ""market"" is supposed to work.  And also, not to think that making money in options is buying first, then selling.  It may be selling, and either buying back or ideally that option expiring worthless. -- Now, a final example.  Let's say you buy a deep in the money call on a stock trading at $150, and you own the $100 calls.  At expiration, these have a value of $50.  But let's say, you don't have any money in your account, to take ownership of the underlying security (you have to come up with the additional $100 per share you are missing).  In that case, need to call  your broker and see how they handle it, and it will depend on the type of account you have (e.g. margin or not, IRA, etc).  Generally speaking though, the ""margin department"" makes these decisions, and they look through folks that have options on things that have value, and are expiring, and whether they have the funds in their account to absorb the security they are going to need to own.  Exchange-wise, options that have value at expiration, are exercised.  But what if the person who has the option, doesn't have the funds to own the whole stock? Well, ideally on Monday they'll buy all the shares with the options you have at the current price, and immediately liquidate the amount you can't afford to own, but they don't have to.  I'm mentioning this detail so that it helps you see what's going or needs to go on with exchanges and brokerages and individuals, so you have a broader picture." "First, you are not exactly ""giving"" the brokerage $2000. That money is the margin requirement to protect them in the case the stock price rises. If you short 200 shares as in your example and they are holding $6000 from you then they are protected in the event of the stock price increasing to $30/share. Sometime before it gets there the brokerage will require you to deposit more money or they will cover your position by repurchasing the shares for your account. The way you make money on the short sale is if the stock price declines. It is a buy low sell high idea but in reverse. If you believe that prices are going to drop then you could sell now when it is high and buy back later when it is lower. In your example, you are selling 200 shares at $20 and later, buying those at $19. Thus, your profit is $200, not counting any interest or fees you have paid. It's a bit confusing because you are selling something you'll buy in the future. Selling short is usually considered quite risky as your gain is limited to the amount that you sold at initially (if I sell at $20/share the most I can make is if the stock declines to $0).  Your potential to lose is unlimited in theory. There is no limit to how high the stock could go in theory so I could end up buying it back at an infinitely high price. Neither of these extremes are likely but they do show the limits of your potential gain and loss.  I used $20/share for simplicity assuming you are shorting with a market order vs a limit order. If you are shorting it would be better for you to sell at 20 instead of 19 anyway. If someone says I would like to give you $20 for that item you are selling you aren't likely to tell them ""no, I'd really only like $19 for it""" Some ADRs have standardized options that trade on US exchanges.  If your stock/ADR is one of those, then you find the put option through most brokerages that deal with stock options and trade the option like you would on a regular stock.  If your ADR does not have standardized options, then your options will depend on where the ADR trades.  If it's OTC, you might not even be able to short it.  If it trades on a major exchange, the shorting the ADR may be a viable choice. "First, your question contains a couple of false premises: Options in the U.S. do not trade on the NYSE, which is a stock exchange.  You must have been looking at a listing from an options exchange. There are a handful of options exchanges in the U.S., and while two of these have ""NYSE"" in the name, referring to ""NYSE"" by itself still refers to the stock exchange. Companies typically don't decide themselves whether options will trade for their stock.  The exchange and other market participants (market makers) decide whether to create a market for them. The Toronto Stock Exchange (TSX) is also a stock exchange.  It doesn't list any options.  If you want to see Canadian-listed options on equities, you're looking in the wrong place. Next, yes, RY does have listed options in Canada. Here are some.  Did you know about the Montreal Exchange (MX)?  The MX is part of the TMX Group, which owns both the Toronto Stock Exchange (TSX) and the Montreal Exchange. You'll find lots of Canadian equity and index options trading at the MX.  If you have an options trading account with a decent Canadian broker, you should have access to trade options at the MX. Finally, even considering the existence of the MX, you'll still find that a lot of Canadian companies don't have any options listed.  Simply: smaller and/or less liquid stocks don't have enough demand for options, so the options exchange & market makers don't offer any. It isn't cost-effective for them to create a market where there will be very few participants." "Could have done a [put option](http://en.wikipedia.org/wiki/Put_option) if you wanted to bet against it in another way. It's not technically ""shorting"", but in a layman-shorthand it's the same thing - making money gambling on the ""pessimistic side"" of possibility. You don't actually need to borrow any shares to do that, just find someone who thinks the price at some later date will be higher than you think it will be."