How to bet against IPOs?
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.
I doubt that this exists, but it could theoretically. After all, a share is kind of an option to a company's future success, and so a call is already a second level on indirection. The better approach would be to 'create your own Put-Puts', by investing less money (A) in the Put you wanted to invest into, and put the smaller rest (B) in the share itself or a Call. That way, if the original Put is successful, at max (B) is lost, and if it is unsuccessful, the loss on (A) is covered by a gain on (B). Potentially, if you do the math, you can reach a mathematical equivalent situation to a Put-Put by buying the right amount and kind of Calls. However, we know already that buying a Put and a Call is a poor strategy, so that would mean a Put-Put would also be a poor strategy. "There are no ""rules"" about how the price should act after an IPO, so there are no guarantee that a ""pop"" would appear at the opening day. But when an IPO is done, it's typically underpriced. On average, the shares are 10% up at the end of the first day after the IPO (I don't have the source that, I just remember that from some finance course). Also, after the IPO, the underwriter can be asked to support the trading of the share for a certain period of time. That is the so called stabilizing agent. They have few obligations like: This price support in often done by a repurchase of some of the shares of poorly performing IPO. EDIT: Informations about the overallotment pool. When the IPO is done, a certain number of client buy the shares issued by the company. The underwriter, with the clients, can decide to create an overallotment pool, where the clients would get a little more shares (hence ""overallotment""), but this time the shares are not issued by the company but by the underwriter. To put it another way, the underwriter oversell and becomes short by a certain number of shares (limited to 15% of the IPO). In exchange for the risk taken by this overallotment, the underwriter gets a greenshoe option from the clients, that will allows the underwriter to buy back the oversold shares, at the price of the IPO, from the clients. The idea behind this option is to avoid a market exposure for the underwriter. So, after the IPO: If the price goes down, the underwriter buys back on the market the overshorted shares and makes a profits. If the price goes up, the company exercise the greenshoe option buy the shares at the IPO prices (throught the overallotment pool, that is, the additional shares that the clients wanted ) to avoid suffering a loss." Should do it through a limit auction book.   Management and shareholders pre ipo submit sealed limit sell orders. Buyers submit sealed limit buy orders, nobody can see where the price is going.  At 9AM, the price is calculated and whomever fills get filled and ta da everyone is trading at 9:30 when the market is open. If the position starts losing money as soon as it is put on, then I would close it out ,taking a small loss. However, if it starts making money,as in the stock inches higher, then you can use part of the premium collected to buy an out of money put, thereby limiting your downside. It is called a collar. "This doesn't make sense to me. Writing a covered call gives him a long delta position - the exact opposite of what he wants. And the tax losses won't turn a losing position into a winning one.  Is there something I'm missing?  Edit: Also, doesn't ""shorting against the box"" mean he has to have a long position, and short against that? That means you've got zero net delta, which isn't very useful at all..." There isn't a formula like that, there is only the greed of other market participants, and you can try to predict how greedy those participants will be. If someone decided to place a sell order of 100,000 shares at $5, then you can buy an additional 100,000 shares at $5. In reality, people can infer that they might be the only ones trying to sell 100,000 shares right then, and raise the price so that they make more money. They will raise their sell order to $5.01, $5.02 or as high as they want, until people stop trying to buy their shares. It is just a non-stop auction, just like on ebay. Try using technical analysis, look at the charts and look for stocks that are uptrending. The dfinition of an uptrend being higher highs and higher lows. Use a stochastic indicator and buy on the dips down when the stochastic is in the oversold position (below 20) and and crossing over about to turn back upwards. Or you can also use the stochastic to trade shares that have been ranging between two prices (say between $10 and $12) for a while. As the price approaches the $10 support and the stochastic is in oversold, you would buy as the price rebounds off the $10 support and the stochastic crosses and starts rebounding back up. As the price starts reaching the resistance at $12 (with stocastic in overbought at above 80) you would look to sell and take profits. If you were able to do short selling in the competition, you could short sell at this point in time and make profits on the way up as well as on the way down. There are many more techniques you could use to set up trade opportunities using technical analysis, so it may be a subject you could research further before the comptition begins. Good luck. In order to see whether you can buy or sell some given quantity of a stock at the current bid price, you need a counterparty (a buyer) who is willing to buy the number of stocks you are wishing to offload. To see whether such a counterparty exists, you can look at the stock's order book, or level two feed. The order book shows all the people who have placed buy or sell orders, the price they are willing to pay, and the quantity they demand at that price. Here is the order book from earlier this morning for the British pharmaceutical company, GlaxoSmithKline PLC.  Let's start by looking at the left-hand blue part of the book, beneath the yellow strip. This is called the Buy side. The book is sorted with the highest price at the top, because this is the best price that a seller can presently obtain. If several buyers bid at the same price, then the oldest entry on the book takes precedence. You can see we have five buyers each willing to pay 1543.0 p (that's 1543 British pence, or £15.43) per share. Therefore the current bid price for this instrument is 1543.0. The first buyer wants 175 shares, the next, 300, and so on. The total volume that is demanded at 1543.0p is 2435 shares. This information is summarized on the yellow strip: 5 buyers, total volume of 2435, at 1543.0. These are all buyers who want to buy right now and the exchange will make the trade happen immediately if you put in a sell order for 1543.0 p or less. If you want to sell 2435 shares or fewer, you are good to go. The important thing to note is that once you sell these bidders a total of 2435 shares, then their orders are fulfilled and they will be removed from the order book. At this point, the next bidder is promoted up the book; but his price is 1542.5, 0.5 p lower than before. Absent any further changes to the order book, the bid price will decrease to 1542.5 p. This makes sense because you are selling a lot of shares so you'd expect the market price to be depressed. This information will be disseminated to the level one feed and the level one graph of the stock price will be updated. Thus if you have more than 2435 shares to sell, you cannot expect to execute your order at the bid price in one go. Of course, the more shares you are trying to get rid of, the further down the buy side you will have to go. In reality for a highly liquid stock as this, the order book receives many amendments per second and it is unlikely that your trade would make much difference. On the right hand side of the display you can see the recent trades: these are the times the trades were done (or notified to the exchange), the price of the trade, the volume and the trade type (AT means automatic trade).  GlaxoSmithKline is a highly liquid stock with many willing buyers and sellers. But some stocks are less liquid. In order to enable traders to find a counterparty at short notice, exchanges often require less liquid stocks to have market makers. A market maker places buy and sell orders simultaneously, with a spread between the two prices so that they can profit from each transaction. For instance Diurnal Group PLC has had no trades today and no quotes. It has a more complicated order book, enabling both ordinary buyers and sellers to list if they wish, but market makers are separated out at the top. Here you can see that three market makers are providing liquidity on this stock, Peel Hunt (PEEL), Numis (NUMS) and Winterflood (WINS). They have a very unpalatable spread of over 5% between their bid and offer prices. Further in each case the sum total that they are willing to trade is 3000 shares. If you have more than three thousand Dirunal Group shares to sell, you would have to wait for the market makers to come back with a new quote after you'd sold the first 3000. A lot of people here talk about shorting stocks, buying options, and messing around with leveraged ETFs. While these are excellent tools, that offer novel opportunities for the sophisticated investor, Don't mess around with these until you have been in the game for a few years. Even if you can make money consistently right out of the gate, don't do it. Why? Making money isn't your challenge, NOT LOSING money is your challenge. It's hard to measure the scope of the risk you are assuming with these strategies, much less manage it when things head south. So even if you've gotten lucky enough to have figured  out how to make money, you surely haven't learned out how to hold on to it. I am certain that every beginner still hasn't figured out how to comprehend risk and manage losing positions. It's one of those things you only figure out after dealing with it. Stocks (with little to no margin) are a great place to learn how to lose because your risk of losing everything is drastically lower than with the aforementioned tools of the sophisticated investor. Despite what others may say you can make out really well just trading stocks.  That being said, one of my favorite beginner strategies is buying stocks that dip for reasons that don't fundamentally affect the company's ability to make money in the mid term (2 quarters).  Wallstreet loves these plays because it shakes out amateur investors (release bad news, push the stock down shorting it or selling your position, amateurs sell, which you buy at a discount to the 'fair price'.) A good example is Netflix back in 2007. There was a lawsuit because netflix was throttling movie deliveries to high traffic consumers. The stock dropped a good chunk overnight.  A more recent example is petrobras after their huge bond sale and subsequent corruption scandal. A lot of people questioned Petrobras' long-term ability to maintain sufficient liquidity to pay back the loans, but the cashflow and long term projections are more than solid. A year later the stock was pushed further down because a lot of amateur Brazilians invest in Petrobras and they sold while the stock was artificially depressed due to a string of corruption scandals and poor, though temporary, economic conditions. One of my favorite plays back in 2008-2011 was First Solar on the run-up to earnings calls. Analysts would always come out of these meetings downgrading the stock and the forums were full of pikers and pumpers claiming heavy put positions. The stock would go down considerably, but would always pop around earnings. I've made huge returns on this move. Those were the good ole days. Start off just googling financial news and blogs and look for lawsuits and/or scandals. Manufacturing defects or recalls. Starting looking for companies that react predictably to certain events. Plot those events on your chart. If you don't know how to back-test events, learn it.  Google Finance had a tool for that back in the day that was rudimentary but helpful for those starting out. Eventually though, moreso than learning any particular strategy, you should learn these three skills: 1) Tooling: to gather, manipulate, and visualize data on your own.  These days automated trading also seems to be ever more important, even for the small fish. 2) Analytical Thinking learn to spot patterns of the three types:  event based (lawsuits, arbitrage, earnings etc), technical (emas, price action, sup/res), or business-oriented (accounting, strategy, marketing). Don't just listen to what someone else says you should do at any particular moment, critical thinking is essential. 3) Emotions and Attitude: learn how to comprehend risk and manage your trigger finger. Your emotions are like a blade that you must sharpen every day if you want to stay in the game. Disclaimer: I stopped using this strategy in 2011, and moved to a pure technical trading regime. I've been out totally out of the game since 2015. So I'm confused  - reading dhando investor - he says  Odds of receiving a $1 in 2009 and 30+ percent intrestest from 2002-2009 is -&gt; 50%  Odds of getting .19 back ( a loss of .11) -&gt; 45%  Odds of a loss of .24 is 2%  Odds of a total loss is 3%   He states Kelly criterion suggests 86% betting how!!!!! Bought the converts at .30 cents please explain no idea how he did this. Not going to happen for Facebook since there will be too much demand and the order will go to the top clients of the underwriting investment banks.  In general though, if you wanted a piece of a smaller IPO you'd just have to get in touch with a broker whose investment banking department is on the underwriting syndicate (say Merrill Lynch or Smith Barney) since IPOs often have a percentage that they allocate to retail clients (i.e. you) as well as institutional (i.e. hedge funds, pension funds, mutual funds etc.). The more in demand the IPO the harder it is to get a piece. If you hold at least $2,000 of a company's shares for at least a year you can submit a proxy filing -- a stockholder proposal at the  shareholders' meeting.   Then you can use the media to agitate around that proposal.  (See Hugh Fearnley-Whittingstall, mentioned here as well). Companies have been known to bow to media pressure around minority shareholder proposals.  The guidelines for proxy filings are here: http://ecfr.gpoaccess.gov/cgi/t/text/text-idx?c=ecfr&amp;sid=47b43cbb88844faad586861c05c81595&amp;rgn=div5&amp;view=text&amp;node=17:3.0.1.1.1&amp;idno=17#17:3.0.1.1.1.2.82.201  Buying enough shares to assume control of a major money center bank is not possible, regardless of the amount of money you can raise (remember: there are poison pill provisions, not to mention the fact that the more shares you want to buy, the higher the price will be).   tl;dr: The way to do what you're trying to do is not by accumulating shares but by using the media. You need $2,000. "There are two kinds of engagements in an IPO. The traditional kind where the Banks assume the risks of unsold shares. Money coming out of their pockets to hold shares no one wants. That is the main risk. No one buying the stock that the bank is holding.  Secondly, there is a ""best efforts"" engagement. This means that bank will put forth its best effort to sell the shares, but will not be on the hook if any don't sell. This is used for small cap / risky companies.  Source: Author/investment banker" "You can place the orders like you suggested.  This would be useful in a market that is moving quickly where you want to be reasonably sure of execution but don't want the full exposure of a market order.  This won't jump your spot in the queue though in the sense that you won't get ahead of other orders that are ""ready"" for execution just because you have crossed the spread aggressively." You cannot trade in pre-IPO shares of companies like Facebook without being an accredited investor. If a website or company doesn't mention that requirement, they are a scam. A legitimate market for private shares is SecondMarket.