Why is it that stock prices for a company seem to go up after a layoff?
If the market believes that the company is overstaffed, then management acknowledging the issue and resolving the problem can result in the price going up.  It can also mean that external events drove the price up, and the bad news was lost in the other issues of the day. Sometimes layoffs are a sign of the company entering a long downward spiral; in other cases it is a sign of the beginning recovery. The layoffs can also be viewed as good news if they weren't as big as some experts feared.  You have to look at the exact situation to understand why news x impacts the companies price. "As others have pointed out, there are often many factors that are contributing to a stock's movement other than the latest news.  In particular, the overall market sentiment and price movement very often is the primary driver in any stock's change on a given day.   But in this case, I'd say your anecdotal observation is correct: All else equal, announcements of layoffs tend to drive stock prices upwards. Here's why: To the public, layoffs are almost always a sign that a company is willing to do whatever is needed to fix an already known and serious problem. Mass layoffs are brutally hard decisions.  Even at companies that go through cycles of them pretty regularly, they're still painful every time.  There's a strong personal drain on the chain of executives that has to decide who loses their livelihood.  And even if you think most execs don't care (and I think you'd be wrong) it's still incredibly distracting.   The process takes many weeks, during which productivity plummets. And it's demoralizing to everyone when it happens. So companies very rarely do it until they think they have to.  By that point, they are likely struggling with some very publicly known problems - usually contracting (or negative) margins.   So, the market's view of the company at the time just before layoffs occur is almost always, ""this company has problems, but is unable or unwilling to solve them."".  Layoffs signal that both of those possibilities are incorrect.  They suggest that the company believes that layoffs will fix the problem, and that they're willing to make hard calls to do so. And that's why they usually drive prices up." AMD is doing more than just laying off staff. Their earnings report also includes sales of real estate and other turn around strategies that could be reflected in the stock coming up on hope from investors. At the same time, consider how much of an up is a definite sign of positive news and how much may just be random noise as even a broken clock will be right twice a day. Often there will be more than just an announcement of x% of staff being laid off. There will be plans to improve future profits and this is what shareholders would want to know. What is the management doing to move the company forward to better profits down the road.
Should go up because of a company is doing better than the market previously expected it to do, the implication is that it's undervalued at the current price and you buy now you're getting it for less than what it's worth.   If Trump was wrong, then the stock would trade up for a bit before ultimately finishing up where it started when the market realises there's nothing in what he said. "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/" Many companies actually just issue new shares for employee compensation instead of buying back existing ones. So actually, the share price should go down because the same value is now diluted over more shares. In addition, this would not necessarily affect companies with many employees than those with fewer employees because companies with more employees tend to be bigger and thus have more shares (among which the change in demand would be distributed). Also, I think many companies do not issue shares to employees every pay day, but just e.g. once every quarter. If you believe in the efficient market hypothesis then the stock price reflects the information known to market participants. Consequently, if the 'market' expected earnings to rise, and they did, then the price won't change. Clearly there are circumstances, especially in the short term and for illiquid stocks, where this isn't true, but a lot of work points to this being the case on average. Ideally, stock price reflects the value of the company, the dividends it is expected to pay, and what people expect the future value of the company to be. Only one of those (maybe one and a half) is related to current  sales, and not always directly. Short-term motion of a stock is even less directly linked, since it also reflects previous expectations. A company can announce disappointing sales and see its stock go up, if the previous price was based on expecting  worse news. Simple, there is no magic price adjustment after sales - why do you expect the stock price to change? The listed price of a stock is what someone was willing to pay for it in the last deal that was concluded. If any amount of stock changes ownership, this might have the effect that other people are willing to buy it for a higher price - or not. It is solely in the next buyer's decision what he is willing to pay. Example: if you think Apple stocks are worth 500$ a piece, and I buy a million of them, you might still think they are worth 500$. Or you might see this as a reason that they are worth 505$ now. The price gaps up because the offer is for a price above the current price. Therefore people want to buy now before the price jumps to the offer level. Of course it does depend on the tone of the announcement,  which party is making the announcement, and are they announcing an offer or a deal. If the price is $10, and the offer is for $12; then the price may quickly jump. The early buyers will make the most quick money. They hope that the deal is done quickly, or if not the final price ends up higher.  There are risks. The company could reject the offer. The due diligence could expose a problem. The regulators could reject the deal based on anti-trust issues. The deal could take many months to complete. Or the final deal could be for shares in the new company.  The risks are one reason people sell after the deal/offer is announced. In other cases the seller finally is seeing a profit, or a smaller loss and wants out while they can. Stock price is an indicator about the health of the company.  Increased profits (for example) will drive the stock price up; excessive debt (for example) will drive it down. The stock price has a profound effect on the company overall: for example, a declining share price will make it hard to secure credit, attract further investors, build partnerships, etc.  Also, employees are often holding options or in a stock purchase plan, so a declining share price can severely dampen morale. In an extreme case, if share prices plummet too far, the company can be pressured to reverse-split the shares, and (eventually) take the company private.  This recently happened to Playboy. When a delisting happens, the primary process involves, the firm or the entity, trying to buy everyone out so that they can take the firm private by delisting from the stock exchanges. As the firm wants to buy everyone out, the current owners of the equity have the upper hand. They wouldn't want to sell if they believe the firm has a brighter future. So to compensate the existing holders, the buyer needs to compensate the current holders of any future loss, so they pay a premium to buy them out. Hence the prices offered will be more than the current existing price. And in anticipation of a premium the stocks price rises on this speculation. The other scenario is if the current holder(s) decide no to sell their holdings and are small in number, dependent on exchange regulations, and the buyer manages to de-list the stock, the holders might loose out i.e. they have to find another buyer who wants to buy which becomes difficult as the liquidity for the stock is very minimal. if any stock is DE-listed and then we can not trade on it,  In India if the promoters capital is more than 90%, he can get the stock de-listed. There is a process, he has to make an open offer at specified price to minority shareholders. The minority shareholder can refuse to sell. Once the stock is de-listed, it means it cannot be traded on a given exchange. However you can still sell / buy by directly finding a buyer / seller and it's difficult compared to a listed stock. This is an old question that has an accepted answer, but it has gotten bumped due to an edit and the answers given are incorrect. I am assuming this means that every other Friday, the company is going into the open public market, buying those shares and then giving it out to the employees. No. Companies will internally hold shares that it intends to offer employees as additional compensation. There are no open market transactions, so the market price of the stock does not change (at least not due to buying pressure).  The only net effect is an equivalent expense for the compensation, but that should already be accounted for in the share price as normal operating expenses. These share may come through an initial buyback from the market, but more common is that when companies issue new shares they keep some internally for exactly this situation.  If they issued new shares every pay period, it would dilute the existing shares several times a quarter which would be difficult to account for. Your understanding of the stock market is absolutely correct theoretically. However there is a lot more to it. A stock on a given day is effected by a lot of factors. These factors could really be anything. For example, if you are buying a stock in an agricultural company and there was no rainfall this year, there is a big chance that your stock will lose value. There is also a chance that a war breaks out tomorrow and due to all the government spending on the war, the economy collapses and effects the prices of stocks. Why does this happen? This happens because bad rainfall or war can get people to lose confidence in a stock market. On the other hand GDP growth and low unemployment rates can make people think positive and increase the demand in a stock driving the prices up. The main factor in the stock market is sentiment(How people perceive certain news). This causes a stock to rise or fall even before the event actually happens. (For example:- Weather pundits predicted good rainfall for next year. That news is already known to people, so if the weather pundit was correct, it might not drive the prices up. However, if the rainfall was way better than people expected it to be it would drive the price up and vice versa.   These are just examples at a basic level. There are a lot of other factors which determine the price of the stock. The best way to look at it(In my personal opinion) is the way Warren Buffet puts it, i.e. look at the stock as a business and see the potential growth over a long period of time.  There will be unexpected events, but in the long run, the business must be profitable. There are various ways to value a company such as Price to earnings ratios, PEG ratios, discounted cash flows and you can also create your own. See what works best for you and record your success/failure ratio before you actually put money in.  Good Luck, Consider the mechanic which actually drives the 'price' of a stock. In simplest terms, the 'price' of a stock is the price at which the most recent trade occurred. ie: if the price of IBM is $100/share, that means the last time someone bought IBM stock, they paid $100. Above and below the 'spot price', are dozens/hundreds/thousands of buyers and sellers who have placed orders that no one is yet willing to match. ie: if IBM's spot price is at $100, there could still be 10,000 people willing to sell for $101 (called the 'ask' price, for the lowest price someone is currently willing to sell at), and 15,000 willing to buy for $99 (called the 'bid' price, for the highest price someone is currently willing to buy for).  Until someone is willing to buy for $101, then no one will be able to sell at $101. Until someone is willing to sell for $99, no one will be able to buy for $99. Typically orders are placed in the market at a particular limit. Meaning that those orders to buy at $99/sell at $101 are already in the 'system', and will be matched immediately as soon as someone is willing to meet the price on the other side. Now consider general market economics: high demand drives up price, and high supply drives down price. If the details above for IBM were yesterday, and today some news came out that IBM was laying off employees, imagine that another 10,000 people who held shares wanted to sell. Now there would be 20,000 sellers and only 15,000 buyers. If those new sellers were aggressive about wanting to sell, they would have to drop their price to $99, to match the highest buyers in the market. Put together, this means that as more sellers enter the market, supply of shares increases, driving down price. Conversely, as more buyers enter the market, demand for shares increases, driving up share price. As a result of the above, you can say that (all else being equal) if price for a stock goes up, there were more buyers that day, and if price goes down, there were more sellers that day. On the face of it, that is not necessarily true, because you could have the same number of buyers and sellers, one side could have simply decreased/increased their acceptable price to match the other side. The main reason is that a public company is owned by its share holders, and share holders would care about the price of the stock they are owning, therefore the company would also care, because if the price go down too much, share holders become angry and may vote to oust the company's management. "In some cases, when a company purchases a minor stake, they often intend to increase the size of the stake over time. As a reference, note that Coca Cola has increased their stake in Green Mountain Coffee Roasters (GMCR) over time. It also adds some ""support"" to the price because these investors may be willing to step in and purchase the stock if there is any distress or poor performance. Finally, its generally a good ""tell"" that the stock has good things going for it and may be subject to additional interest from large investors." Stock trading (as opposed to IPO) doesn't directly benefit the company. But it affects their ability to raise additional funds; if they're valued higher, they don't need to sell as many shares to raise a given amount of money.  And the stockholders are part owners of the company; their votes in annual corporate meetings and the like can add up to a substantial influence on the company's policies, so the company has an interest in keeping them (reasonably) happy. Dividends (distributing part of the company's profits to the stockholders) are one way of doing so. You're still investing in the company. The fact that you're buying someone else's share just means you're doing so indirectly, and they're dis-investing at the same time.