Indicators a stock is part of a pump and dump scheme?
Pump-and-dump scams are indeed very real, but the scale of a single scam isn't anywhere near the type of heist you see in movies like Trading Places. Usually, the scammer will buy a few hundred dollars of a penny stock for some obscure small business, then they'll spam every address they have with advice that this business is about to announce a huge breakthrough that will make it the next Microsoft. A few dozen people bite, buy up a few thousand shares each (remember the shares are trading for pennies), then when the rise in demand pushes up the price enough for the scammer to make a decent buck, he cashes out, the price falls based on the resulting glut of stock, and the victims lose their money. Thus a few red flags shake out that would-be investors should be wary of: "Pump-and-Dump strategy is happening everywhere. Less so in developed market. I can tell an experience from Emerging Market perspective. Usually several securities brokers work together to pump several ""penny"" stocks (5 - 7 stocks). They conspire together and searching for several investors, who have money and willing to participate in this scheme. These investors will then agree to invest (usually with Margin from securities) to start pumping the stocks. The stocks will be pumped until several Research Analysts take interest in it. Once the news were spread out regarding these highly speculative stocks. The investors gradually dumps the stocks (with help of their brokers). The things that you need to keep an eye for: - Low trading volume in the previous 3 - 6 months (relative to their peers) - Low P/E ratio with unremarkable earning growth - No positive catalyst or material news regarding the company - Stocks have high momentum (observe on weekly rather daily returns) Pump-and-dump usually last between 3 months to 6 months." "Note: the answer below is speculative and not based on any first-hand knowledge of pump-and-dump schemes. The explanation with spamming doesn't really makes sense for me. Often you see a stock jump 30% or more in a single day at a particular moment in time. Unlikely that random people read their emails at that time and decide to buy. What I think happens is the pumper does a somewhat risky thing: starts buying a lot of shares of a stock that has declined a lot and had low volumes during the previous days. As the price starts to increase other people start to notice the jump and join the buying spree (also don't forget that some probably use buy-stop orders which are triggered when the price reaches a particular level). Also there should be some automatic trading involved (maybe HFT firms do pump-and-dumps) as you have to trade a big volume in a relatively short time span. I think it is unlikely to be done by human operators. Another explanation would be that there is a group of pumpers (to spread the risk so to speak). Update: As I think more of it, it is not necessary to buy ""a lot of shares"". You could buy some shares, sell them to another pumper and buy from them again at a higher price in several iterations. I think this could also work if you do it fast enough. These scheme makes sense only you previously bought many shares at the low price, possibly during several weeks. Once the price is pumped high enough you can start selling the shares you previously bought (in the days preceding the pump)."
Buying back shares is an indication that the company does not believe that there is justification to invest in production, employee training, or technology. In the end, what it mostly does is pump up the share price, which very directly pumps up the value of share-based compensation that the CEO has.  On mergers and acquisitions, I don't have the time to look for the source right now, but I've read a few reports that showed that the vast majority of mergers and acquisitions actually erodes the value when compared to the two separate companies. They cite reasons like overblown expectations, clash in company cultures, and manipulations up top as a reason to do this. On paper, they all sound great, but these are very dificult things to operationalise which only the very best management teams manage to work out.  The above parties are part of the real economy as long as they are companies that produce goods or services, which is often the case. It contrasts with the paper economy which is the world of bonds, hedge funds, share markets, and commodity markets. The money moving around in this world seldom makes a diference to anybody but the directly involved. The share market is a classic example of this. Although the value of stocks may be high, most people who own the stocks don't actually have more money to spend, unless, obviously they sell the shares. The value is on paper until it is transacted, and can collapse like a house of cards.   The real economy is much more stable and resiliant, and has a large impact on the majority of the population. It won't vary hugely from one month to the next like the stock market can.  I don't have any educaton in economics other than curiosity on how these things work. I read Krugman's blog and generally google any term or concept that tickles my fancy. I also partake in quite a few discussions here on reddit that frequently prompt me to go investiage some more. I don't proport to be some sort of expert, but I do have concise ideas of how things work, and have a very strong bias of looking at evidence and fact-based postulations rather than ideology. "That amount of shares is too low to create ""ripples"" in the market. Usually you don't specify the price to sell the stock, unless you are personally on the floor trading the securities. And even then, with a volume of $50,000 it would just mean you threw away $45,000. For most people it would mean setting a $5 sell order, and the broker would understand that as ""sell this security so long the price is above $5"". When you get to the trading volume required to influence the price, usually you are also bound by some regulations banning some moves. One of them is the Pump and Dump, and even if you are suggesting the opposite, it might be in preparation of this scam. Also, the software used for High Frequency Trading (what all the cool kids[a] in Wall Street are using these days) employ advanced (and proprietary) heuristics to analyze the market and make thousands of trades in a short interval of time. On HTF's speed: Decisions happen in milliseconds, and this could result in big market moves without reason.  So a human trader attempting to manipulate the market versus these HTF setups, would be like a kid in a tricile attempting to outrun the Flash (DC comics). [a] Cool Kid: not really kids, more like suited up sharks. Money-eating sharks." 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. "Share sales & purchases are accounted only on the balance sheet & cash flow statement although their effects are seen on the income statement. Remember, the balance sheet is like a snapshot in time of all accrued accounts; it's like looking at a glass of water and noting the level.  The cash flow and income statements are like looking at the amount of water, ""actually"" and ""imaginary"" respectively, pumped in and out of the glass. So, when a corporation starts, it sells shares to whomever.  The amount of cash received is accounted for in the investing section of the cash flow statement under the subheading ""issuance (retirement) of stock"" or the like, so when shares are sold, it is ""issuance""; when a company buys back their shares, it's called ""retirement"", as cash inflows and outflows respectively. If you had a balance sheet before the shares were sold, you'd see under the ""equity"" heading a subheading common stock with a nominal (irrelevant) par value (this is usually something obnoxiously low like $0.01 per share used for ease of counting the shares from the Dollar amount in the account) under the subaccount almost always called ""common stock"".  If you looked at the balance sheet after the sale, you'd see the number of shares in a note to the side. When shares trade publicly, the corporation usually has very little to do with it unless if they are selling or buying new shares under whatever label such as IPO, secondary offering, share repurchase, etc, but the corporation's volume from such activity would still be far below the activity of the third parties: shares are trading almost exclusively between third parties. These share sales and purchases will only be seen on the income statement under earnings per share (EPS), as EPS will rise and fall with stock repurchases and sales assuming income is held constant.  While not technically part of the income statement but printed with it, the ""basic weighted average"" and ""diluted weighted average"" number of shares are also printed which are the weighted average over the reporting period of shares actually issued and expected if all promises to issue shares with employee stock options, grants, convertibles were made kept. The income statement is the accrual accounts of the operations of the company.  It has little detail on investing (depreciation & appreciation) or financing (interest expenses & preferred dividends)." Just look at equity purchases and follow the corporate bond money trail.  80% of all stock purchases were made by the same companies that issued the stock and they used bond money to do so.  Everything is running off of near zero interest bond money.  Everything.  Notice how careful they are to use words like revenue instead of profit.  We never ever hear about P/E ratios now.  Meanwhile the financial news sites make up the craziest headlines to explain the constant upward momentum (Dow soars as Trump wipes properly for the first time this week).  The scope of manipulation is beyond anything we can comprehend.  Tech is one of the worst offenders.  We have bubbles everywhere now and plenty of fake ZIRP dependent jobs to go with them. "There are stocks that have held 100% of the exact same trend (bull or bear) on a date or date range for years. While  history of course doesn't guarantee that the trend will hold for the current year, that fact itself is distinct from the question of whether history is an *indicator* worth building a thesis off of.  The problem is if and when someone thinks ""indicator"" is equivalent to ""definitive answer"".   Answer 2: A dozen big algo traders have disproven this notion.  Answer 3: Price is not only price action itself. It's calendar, evens, binaries, cyclical psychology, etc." These are treasury stocks allocated to the plan. If necessary, a company issues new shares (depending on a company it may require shareholders or only board approval). Still working on exact answer to question....for now: (BONUS) Here is how to pull a graphical chart with the required data: Therefore: As r14 = the indicator for RSI.  The above pull would pull Google,   6months, line chart, linear, large, with a 50 day moving average, a   200 day exponential moving average, volume, and followed up with RSI. Reference Link:  Finance Yahoo! API's