A stock just dropped 8% in minutes and now all of a sudden the only way to buy is on the ask, what does this mean?
It doesn't sound fishy at all to me. Just seems like you may be dealing with a company that has relatively light trading volume to begin with, meaning that small trades could easily make the price drop 8% (which isn't much if you're talking about a stocks in the $5 or less range. If someone sells at the bid and the bid happens to be 8% lower than the current price, that bid is now the price, hence the drop. The bid moving up afterward, just means that someone is now willing to place a higher order than what the last trade was, to try to get in. You have to look at stocks just like you would look at smaller and more illiquid markets. Stock trade in auction markets. These are analogous to ebay or craigslist, just with more transparency and liquidity. There is no guarantee that a market will form for a particular stock, or that it will sustain.  When a stock sells off, and there are no bids left, that means all of the existing bidder's limit orders got filled because someone sold at those prices. There is nothing fishy about that. It is likely that someone else wants to sell even more, but couldn't find any more bidders. If you put a bid you would likely get filled by the shareholder with a massive position looking for liquidity. You could also buy at the ask.
Are you kidding? The stock markets just took a nose dive this week. Perfect buying opportunity. Just be sure to dollar cost average your way in to avoid excessive timing risk. The everyday investor buys at the ask and sells at the bid but the market maker does the opposite This is misleading; it has nothing to do with being either an investor or a market maker. It is dependent on the type of order that is submitted. When a market trades at the ask, this means that a buy market order has interacted with a sell limit order at the limit price. When a market trades at the bid, this means that a sell market order has interacted with a buy limit order at the limit price. An ordinary investor can do exactly the same as a market maker and submit limit orders. Furthermore, they can sit on both sides of the bid and ask exactly as a market maker does. In the days before high frequency trading this was quite common (an example being Daytek, whose traders were notorious for stepping in front of the designated market maker's bid/ask on the Island ECN). An order executes ONLY when both bid and ask meet. (bid = ask) This is completely incorrect. A transaction occurs when an active (marketable) order is matched with a passive (limit book) order. If the passive order is a sell limit then the trade has occurred at the ask, and if it is a buy limit the trade has occurred at the bid. The active orders are not bids and asks. The only exception to this would be if the bid and ask have become crossed. When a seller steps in, he does so with an ask that's lower than the stock's current ask Almost correct; he does so with an order that's lower than the stock's current ask. If it's a marketable order it will fill the front queued best bid, and if it's a limit order his becomes the new ask price. A trade does not need to occur at this price for it to become the ask. This is wrong, market makers are the opposite party to you so the prices are the other way around for them. This is wrong. There is no distinction between the market maker and yourself or any other member of the public (beside the fact that designated market makers on some exchanges are obliged to post both a bid and ask at all times). You can open an account with any broker and do exactly the same as a market maker does (although with nothing like the speed that a high frequency market-making firm can, hence likely making you uncompetitive in this arena). The prices a market maker sees and the types of orders that they are able to use to realize them are exactly the same as for any other trader. "Your question contains a faulty assumption: During crashes and corrections the amount of sellers is of course higher than the amount of buyers, making it difficult to sell stocks. This simply isn't true.  Every trade has two sides; thus, by definition, for every seller there is buyer and vice versa.  Even if we broaden the definition of ""buyers"" and ""sellers"" to mean ""people willing to buy (or sell) at some price"", the assumption still isn't true.  When a stock is falling it is generally not because potential buyers are exiting the market; it is because they are revising the prices they are willing to buy at downward.   For example, say there are a bunch of orders to buy Frobnitz Consolidated (DUMB) at $5. Suppose DUMB announces a downward revision to its earnings guidance. Those people might not be willing to buy at $50 anymore, so they'll probably cancel their $50 buy orders.  However, just because DUMB isn't worth as much as they thought it was, that doesn't mean it's completely worthless.  So, those prospective buyers will likely enter new orders at some lower value, say, $45.  With that, the value of DUMB has just dropped by $5, a 10% correction.  However, there are still plenty of buyers, and you can still sell your DUMB holdings, if you're willing to take $45 for them. In other words, the value of a security is not determined by the relative numbers of buyers and sellers.  It is determined by the prices those buyers and sellers are willing to pay to buy or accept to sell.  Except for cases of massive IT disruptions, such as we saw in the ""flash crash"", there is always somebody willing to buy or sell at some price." "Price is decided by what shares are offered at what prices and who blinks first.  The buyer and seller are both trying to find the best offer, for their definition of best, within the constraints then have set on their bid or ask. The seller will sell to the highest bid they can get that they consider acceptable. The buyer will buy from the lowest offer they can get that they consider acceptable. The price -- and whether a sale/purchase happens at all -- depends on what other trades are still available and how long you're willing to wait for one you're happy with, and may be different on one share than another ""at the same time"" if the purchase couldn't be completed with the single best offer and had to buy from multiple offers. This may have been easier to understand in the days of open outcry pit trading, when you could see just how chaotic the process is... but it all boils down to a high-speed version of seeking the best deal in an old-fashioned marketplace where no prices are fixed and every sale requires (or at least offers the opportunity for) negotiation. ""Fred sells it five cents cheaper!"" ""Then why aren't you buying from him?"" ""He's out of stock."" ""Well, when I don't have any, my price is ten cents cheaper."" ""Maybe I won't buy today, or I'll buy elsewhere. ""Maybe I won't sell today. Or maybe someone else will pay my price. Sam looks interested..."" ""Ok, ok. I can offer two cents more."" ""Three. Sam looks really interested."" ""Two and a half, and throw in an apple for Susie."" ""Done."" And the next buyer or seller starts the whole process over again. Open outcry really is just a way of trying to shop around very, very, very fast, and electronic reconciliation speeds it up even more, but it's conceptually the same process -- either seller gets what they're asking, or they adjust and/or the buyer adjusts until they meet, or everyone agrees that there's no agreement and goes home." So in your screenshot, someone or some group of someones is willing to buy 3,000 shares at $3.45, and someone or some group of someones is willing to sell 2,000 shares at 3.88. Without getting in to the specific mechanics, you can place a market buy order for 10 (or whatever number) shares and it will probably transact at $3.88 per share because that's the lowest price for which someone will currently sell their shares. As a small fish, you can generally ignore the volume notations in the bid/ask quotes. Depends on when you are seeing these bids & asks-- off hours, many market makers pull their bid & ask prices entirely.  In a lightly traded stock there may just be no market except during the regular trading day. "The current stock price you're referring to is actually the price of the last trade.  It is a historical price – but during market hours, that's usually mere seconds ago for very liquid stocks. Whereas, the bid and ask are the best potential prices that buyers and sellers are willing to transact at: the bid for the buying side, and the ask for the selling side.  But, think of the bid and ask prices you see as ""tip of the iceberg"" prices.  That is: The ""Bid: 13.20 x200"" is an indication that there are potential buyers bidding $13.20 for up to 200 shares.  Their bids are the highest currently bid; and there are others in line behind with lower bid prices.  So the ""bid"" you're seeing is actually the best bid price at that moment.  If you entered a ""market"" order to sell more than 200 shares, part of your order would likely be filled at a lower price. The ""Ask: 13.27 x1,000"" is an indication that there are potential sellers asking $13.27 for up to 1000 shares.  Their ask prices are the lowest currently asked; and there are others in line behind with higher ask prices.  So the ""ask"" you're seeing is the best asking price at that moment.  If you entered a ""market"" order to buy more than 1000 shares, part of your order would likely be filled at a higher price. A transaction takes place when either a potential buyer is willing to pay the asking price, or a potential seller is willing to accept the bid price, or else they meet in the middle if both buyers and sellers change their orders. Note: There are primarily two kinds of stock exchanges.  The one I just described is a typical order-driven matched bargain market, and perhaps the kind you're referring to. The other kind is a quote-driven over-the-counter market where there is a market-maker, as JohnFx already mentioned.  In those cases, the spread between the bid & ask goes to the market maker as compensation for making a market in a stock.  For a liquid stock that is easy for the market maker to turn around and buy/sell to somebody else, the spread is small (narrow).  For illiquid stocks that are harder to deal in, the spread is larger (wide) to compensate the market-maker having to potentially carry the stock in inventory for some period of time, during which there's a risk to him if it moves in the wrong direction.    Finally ... if you wanted to buy 1000 shares, you could enter a market order, in which case as described above you'll pay $13.27.  If you wanted to buy your shares at no more than $13.22 instead, i.e. the so-called ""current"" price, then you would enter a limit order for 1000 shares at $13.22.  And more to the point, your order would become the new highest-bid price (until somebody else accepts your bid for their shares.)  Of course, there's no guarantee that with a limit order that you will get filled; your order could expire at the end of the day if nobody accepts your bid." "You have heard the old adage ""Buy low, sell high"", right? That sounds so obvious that you'd have to wonder why they would ever bother coining such an expression. It should rank up there with ""Don't walk in front of a moving car"" on the Duh scale of advice. Well, your question demonstrates exactly why it isn't quite so obvious in the real world and that people need to be reminded of it.  So, in your example, the stock prices are currently low (relative to what they have been). So per that adage, do you sell or buy when prices are low? Hint: It isn't sell. Yes. Your gut is going to tell you the exact opposite thanks to the fact that our brains are unfortunately wired to make us susceptible to the loss aversion fallacy. When the market has undergone a big drop is the WORST time to stop contributing (buying stocks).  This example might help get your brain and gut to agree a little more easily: If you were talking about any other non-investment commodity, cars for instance.  Your question equates to.. I really need a car, but the prices have been dropping like crazy lately.    Maybe I should wait until the car dealers start raising their prices again before I buy one. Dollar Cost Averaging As littleadv suggested, if you have an automatic payroll deduction for your retirement account, you are getting the benefit of Dollar Cost Averaging. Because you are investing the same amount on a scheduled interval, you are buying more shares when they are cheap and fewer when they are expensive. It is like an automatic buy low strategy is built into the account. The alternative, which you are implying, is a market timing strategy. Under this strategy, instead of investing regularly you try to get in and out of investments right before they go up/drop. There are two MAJOR flaws with this approach:   1) Your brain will work against you (see above) and encourage you to do the exact opposite of what you should be doing.   2) Unless you are clairvoyant, this strategy isn't much better than gambling. If you are lucky it can work, but because of #1, the odds are stacked against you." TD will only sell the stock for you if there's a buyer. There was a buyer, for at least one transaction of at least one stock at 96.66. But who said there were more? Obviously, the stocks later fell, i.e.: there were not that many buyers as there were sellers. What I'm saying is that once the stock passed/reached the limit, the order becomes an active order. But it doesn't become the only active order. It is added to the list, and to the bottom of that list. Obviously, in this case, there were not enough buyers to go through the whole list and get to your order, and since it was a limit order - it would only execute with the limit price you put. Once the price went down you got out of luck.  That said, there could of course be a possibility of a system failure. But given the story of the market behavior - it just looks like you miscalculated and lost on a bet. I think the best answer that doesn't make the buyer look like a moron is this. Buyer had previously sold a covered call.  They wanted to act on a different opportunity so they did a closing buy/write with a spread of a couple cents below asking for the stock, but it dipped a couple cents and the purchase of those options to close resolved at 4 cents due to lack of sellers. Matt Levine talked about a cute scam that this resembles, a kind of extended short squeeze. You manipulate up the stock of a company, so that it's obviously way above the fundamental value. Word will get out. Then the shorts come in. But the value remains stubbornly high. All the stock is held by a few insiders, but they didn't manipulate the stock price to do a pump and dump. They did it to milk the shorts on borrow cost. "Honestly, I wonder if the other answerers aren't overthinking it. Their answers are detailed and correct, but what your coach may be saying is this: When you have bought a stock, on cash or margin, and you are watching it rise you are evaluating when you sell on the price of the stock you are seeing. In reality, you should look at the bid (price buyers will give you for the stock) and ask (price sellers will charge you for the stock) prices. If the stock is going up, odds are the price of the stock is very close to the ask price because it is purchases that are driving it up, but that's not what you're going to get when you sell. You're going to get something around the bid price. If the spread between the two is large (i.e. a volatile stock) this could be many cents or more lower than the ask price. Therefore, what your coach may mean by ""Selling on Ask"" is you're using the stock price when it's equal or close to the ask price to decide when to sell, instead of letting the stock peak and drop (when its price will approach the bid price) or letting the trailing bid offers catch up to your desired sell point and selling then (i.e. letting the stock point grow PAST your sell point, dragging the bid price up with it). Just a thought, but that sounds like a term a coach would come up with to mean selling and getting less than you thought you were going to from the sale. (I know it's a necro reply, but the Interwebs are immortal and people come via Google... I did)" "The price of the last trade... Is the price of the last trade. It indicates what one particular buyer and seller agreed upon. There is absolutely no requirement that one of them didn't offer too much or demand too little, so this is nearly meaningless as an indication of what anyone else will be willing to offer or demand. An average of trades across a sufficiently large number of transactions might indicate a rough consensus about the value of a stock, but transactions will be clustered around that average and the average itself moves over time. Either you offer to sell or buy at a particular price, wait for that price, and risk the transaction not taking place at all if nobody agrees, or you do a spot transaction and get the best price at that nanosecond (which may not be the best in the next nanosecond). Or you tell the broker what the limits are that you consider acceptable, trading these risks off against each other. Pick the one which comes closest to your intent and ignore the fact that others may be getting a slightly different price. That's just the way the market works. ""If his price is lower, why didn't you buy it there?"" ""He's out of stock."" ""Well, come back when I'm out of stock and I'll be unable to sell it to you for an even better price!""" Remember that shares represent votes at the shareholders' meeting. If share price drops too far below the value of that percentage of the company, the company gets bought out and taken over. This tends to set a minimum share price derived from the company's current value. The share price may rise above that baseline if people expect it to be worth more in the future, or drop s bit below if people expect awful news. That's why investment is called speculation. If the price asked is too high to be justified by current guesses, nobody buys. That sets the upper limit at any given time. Since some of this is guesswork, the market is not completely rational. Prices can drop after good news if they'd been inflated by the expectation of better news, for example. In general, businesses which don't crash tend to grow.  Hence the market as a whole generally trends upward if viewed on a long timescale. But there's a lot of noise on that curve; short term or single stocks are much harder to predict. (Note: I am omitting the currency units.  While I strongly suspect it's US$ I don't know from the chart.  The system works the same no matter what the currency.) A call or a put is the right to sell (put) or buy (call) shares at a certain price on a certain day. This is why you see a whole range of prices.  Not all possible stock values are represented, the number of possibilities has to be kept reasonable.  In this case the choices are even units, for an expensive stock they may be spaced even farther apart than this. The top of the chart says it's for June.  It's actually the third Friday in the month, June 15th in this case.  Thus these are bets on how the stock will move in the next 10 days. While the numbers are per share you can only trade options in lots of 100. The left side of the chart shows calls.  Suppose you sell a call at 19 (the top of the chart)  The last such trade would have gotten you a premium of 9.70 per share (the flip side of this is when the third friday rolls around it will most likely be exercised and they'll be paying you only 19 a share for a stock now trading at something over 26.)  Note the volume, bid and ask columns though--you're not going to get 9.70 for such a call as there is no buyer.  The most anybody is offering at present is 7.80 a share. Now, lets look farther down in the chart--say, a strike price of 30.  The last trade was only .10--people think it's very unlikely that FB will rise above 30 to make this option worthwhile and thus you get very little for being willing to sell at that price.  If FB stays at 26 the option will expire worthless and go away.  If it's up to 31 when the 15th rolls around they'll exercise the option, take your shares and pay you 30 for them.  Note that you already gave permission for the trade by selling the call, you can't back out later if it becomes a bad deal. Going over to the other side of the chart with the puts: Here the transaction goes the other way, come the 15th they have the option of selling you the shares for the strike price.  Lets look at the same values we did before.  19?  There's no trading, you can't do it. 30?  Here you will collect 3.20 for selling the put.  Come the 15th they have the right to sell you the stock for 30 a share.  If it's still 26 they're certainly going to do so, but if it's up to 31 it's worthless and you pocket the 3.20 Note that you will normally not be allowed to sell a call if you don't own the shares in question.  This is a safety measure as the risk in selling a call without the stock is infinite.  If the stock somehow zoomed up to 10,000 when the 15th rolls around you would have to come up with the shares and the only way you could get them is buy them on the open market--you would have to come up with a million dollars.  If there simply aren't enough shares available to cover the calls the result is catastrophic--whoever owns the shares simply gets to dictate terms to you.  (And in the days of old this sometimes happened.)