Trading large volumes with penny profits per share
How do you know the shares will go up after you buy? The ultimate risk in your scenario is that you buy at a peak, and then that peak is never reached again. Over time, stock markets go up [more or less because there is a net increase in the overall production of the economy as time goes on]. However, you won't experience much of that gain, because you will be selling only after tiny amounts of profit have been achieved. So your upside is low, your plan is capital-expensive [because it requires you to have significant amount of cash available to make the initial purchase], and your downside [though unlikely] has massive risk. Currently my online savings account pays an interest rate of 1.25%.  With 100K, I can earn about $104 per month in that account.  No risk, no timing, no fuss. So in theory you can make money by small changes in the valuations of stock.  However there are often better, risk free options for your money; or, there are much better options for returns with much less risk, but more than that of a bank account.
You'd need millions of dollars to trade the number of shares it would take to profit from these penny variations.  What you bring up here is the way high frequency firms front-run trades and profit on these pennies. Say you have a trade commission of $5.  Every time you buy you pay $5, every time you sell you pay $5.  So you need a gain in excess of $10, a 10% gain on $100.  Now if you wanted to trade on a penny movement from $100 to $100.01, you need to have bought 1,000 shares totaling $100,000 for the $0.01 price movement to cover your commission costs.  If you had $1,000,000 to put at risk, that $0.01 price movement would net you $90 after commission, $10,000,000 would have made you $990.  You need much larger gains at the retail level because commissions will equate to a significant percentage of the money you're investing. Very large trading entities have much different arrangements and costs with the exchanges.  They might not pay a fee on each transaction but something that more closely resembles a subscription fee, and costs something that more closely resembles a house. Now to your point, catching these price movements and profiting.  The way high frequency trading firms purportedly make money relates to having a very low latency network connection to a particular exchange.  Their very low latency/very fast network connection lets them see orders and transact orders before other parties.   Say some stock has an ask at $101 x 1,000 shares.  The next depth is $101.10.  You see a market buy order come in for 1,000 shares and place a buy order for 1,000 shares at $101 which hits the exchange first, then immediately place a sell order at $101.09, changing the ask from $101.00 to $101.09 and selling in to the market order for a gain of $0.09 per share. In the scenario you describe, the first thing I would look at would be liquidity.  In other words, how easy is it to buy and sell shares.  If the average daily volume of one share is low compared to the average daily volume of the other, then the more actively traded share would be the more attractive.  Low volume shares will have larger bid-offer spreads than high volume shares, so if you need to get out of position quickly you will be at risk of being forced to take a lowball offer. Having said that, it is important to understand that high yielding shares have high yields for a reason.  Namely, the market does not think much of the company's prospects and that it is likely that a cut in the dividend is coming in the near future. In general, the nominal price of a share is not important.  If two companies have equal prospect, then the percentage movement in their share price will be about the same, so the net profit or loss you realise will be about the same. How I understand it is: supply/demand affect price of stock   negatively/positively, respectively. Correct. Volume is the amount of buying/selling activity in these stocks (more   volume = more fluctuation, right?). Sort of.  Higher volume means higher liquidity.  That is, a stock that is traded more is easier to trade.  It doesn't necessarily mean more fluctuation and in the real world, it often means that these are well-understood stocks with a high amount of analyst coverage.  This tends towards these stocks not being as volatile as smaller stocks with less liquidity. Company revenue (and profit) will help an investor predict company   growth. That is one factor in a stock price.  There are certain stocks that you would buy without them making a profit because their future revenue looks potentially explosive.  However, these stocks are very risky and are bubble-prone. If you're starting out in the share market, it's generally a good idea to invest in index funds (I am not a broker, my advice should not be taken as financial advice).  These funds aggregate risk by holding a lot of different companies.  Also, statistics have shown that over time, buying and holding index funds long term tends to dramatically outperform other investment strategies, particularly for people with low amounts of capital. NSCC illiquid charges are charges that apply to the trading of low-priced over-the counter (OTC) securities with low volumes. Open net buy quantity represents the total unsettled share amount per stock at any given time during a 3-day settlement cycle. Open net buy quantity must be less than 5,000,000 shares per stock for your entire firm Basically, you can't hold a long position of more than 5 million shares in an illiquid OTC stock without facing a fee. You'll still be assessed this fee if you accumulate a long position of this size by breaking your purchase up into multiple transactions. Open net sell quantity represents the total unsettled share amount per stock at any given time during a 3-day settlement cycle. Open net sell quantity must be less than 10% percent of the 20-day average volume If you attempt to sell a number of shares greater than 10% of the stock's average volume over the last 20 days, you'll also be assessed a fee. The first link I included above is just an example, but it makes the important point: you may still be assessed a fee for trading OTC stocks even if your account doesn't meet the criteria because these restrictions are applied at the level of the clearing firm, not the individual client.  This means that if other investors with your broker, or even at another broker that happens to use the same clearing firm, purchase more than 5 million shares in an individual OTC stock at the same time, all of your accounts may face fees, even though individually, you don't exceed the limits. Technically, these fees are assessed to the clearing firm, not the individual investor, but usually the clearing firm will pass the fees along to the broker (and possibly add other charges as well), and the broker will charge a fee to the individual account(s) that triggered the restriction. Also, remember that when buying OTC/pink sheet stocks, your ability to buy or sell is also contingent on finding someone else to buy from/sell to. If you purchase 10,000 shares one day and attempt to sell them sometime in the future, but there aren't enough buyers to buy all 10,000 from you, you might not be able to complete your order at the desired price, or even at all. About 10 years ago, I used to use MetaStock Trader which was a very sound tool, with a large number of indicators, but it has been a number of years since I have used it, so my comments on it will be out of date. At the time it relied upon me purchasing trading data myself, which is why I switched to Incredible Charts. I currently use Incredible Charts which I have done for a number of years, initially on the free adware service, now on the $10/year for EOD data access. There are quicker levels of data access, which might suit you, but I can't comment on these. It is web-based which is key for me. The data quality is very good and the number of inbuilt indicators is excellent. You can build search routines on the basis of specific indicators which is very effective. I'm looking at VectorVest, as a replacement for (or in addition to) Incredible Charts, as it has very powerful backtesting routines and the ability to run test portfolios with specific buy/sell criteria that can simulate and backtest a number of trading scenarios at the same time. The advantage of all of these is they are not tied to a particular broker. looking over some historical data I cannot really a find a case where a stock went from $0.0005 to $1 it almost seem that once a stock crosses a minimum threshold the stock never goes back up. Is there any truth to that? That would be a 2000X (200,000%) increase in the per-share value which would be extraordinary.  When looking at stock returns you have to look at percentage returns, not dollar returns.  A gain of $1 would be minuscule for Berkshire-Hathaway stock but would be astronomical for this stock,. If the company is making money shouldn't the stock go up? Not necessarily.  The price of a stock is a measure of expected future performance, not necessarily past performance.  If the earnings had been more that the market expected, then the price might go up, but if the market sees it as an anomaly that won't continue then there may not be enough buyers to move the stock up. looking at it long term would it hurt me in anyway to buy ~100,000 shares which right now would run be about $24 (including to fee) and sit on it? If you can afford to lose all $24 then no, it won't hurt.  But I wouldn't expect that $24 to turn into anything higher than about $100.  At best it might be an interesting learning experience. "As previously answered, the solution is margin. It works like this: You deposit e.g. 1'000 USD at your trading company. They give you a margin of e.g. 1:100, so you are allowed to trade with 100'000 USD.  Let's say you buy 5'000 pieces of a stock at $20 USD (fully using your 100'000 limit), and the price changes to $20.50 . Your profit is 5000* $0.50 = $2'500. Fast money? If you are lucky. Let's say before the price went up to 20.50, it had a slight dip down to $19.80. Your loss was 5000* $0.2 = 1'000$. Wait! You had just 1000 to begin with: You'll find an email saying ""margin call"" or ""termination notice"": Your shares have been sold at $19.80 and you are out of business. The broker willingly gives you this credit, since he can be sure he won't loose a cent. Of course you pay interest for the money you are trading with, but it's only for minutes. So to answer your question: You don't care when you have ""your money"" back, the trading company will always be there to give you more as long as you have deposit left. (I thought no one should get margin explained without the warning why it is a horrible idea to full use the ridiculous high margins some broker offer. 1:10 might or might not be fine, but 1:100 is harakiri.)" "That's like a car dealer advertising their ""huge access"" to Chevrolet.  All brokers utilize dark pools nowadays, either their own or one belonging to a larger financial institution.  Why?  Because that's a primary source of broker income.  Example: Under current US regulations the broker is under no obligation to pass these orders to actual (a.k.a. lit) exchanges.  Instead it can internalize them in its dark pool as long as it ""improves the price"".  So: If a broker doesn't run its own dark pool, then it sends the orders to the dark pool run by a larger institution (JPMorgan, Credit Suisse, Getco, Knight Capital) and gets some fraction of the dark pool's profit in return. Are Mom and Pop negatively impacted by this?  Not for most order types.  They each even got a free penny out of the deal!  But if there were no dark pools, that $1.00 difference between their trade prices would have gone half ($0.50) to Mom's counterparty and half ($0.50) to Pop's counterparty, who could be someone else's Mom and someone else's Pop. So ... that's why brokers all use dark pools, and why their advertisement of their dark pool access is silly.  They're basically saying, ""We're going to occasionally throw you a free penny while making 49 times that much from you""! (Note: Now apply the above math to a less liquid product than AAPL.  Say, where the spread is not $0.01, but more like $0.05.  Now Mom and Pop still might make a penny each, while the broker can make $4.98 on a 100 share trade!)"