What's the benefit of buying shares in a wholly owned subsidiary if you own parent company stock?
The parent company is likely to own other assets, which can be badly performing. Spinoffs are typically the better performers. There are also other factors, for example certain big funds cannot invest in sectors like tobacco or defense and for conglomerates it makes sense to spin those assets off to attract a wider investor audience.
"The dow jones is an index of 30 stocks that's weighted based on the price per share of these stocks. To calculate the DJIA, the sum of the prices of all 30 stocks is divided by a divisor, the Dow Divisor. The divisor is adjusted in case of stock splits, spinoffs or similar structural changes, to ensure that such events do not in themselves alter the numerical value of the DJIA.  Prices are the result of supply and demand. Demand is defined as simply as ""I want this badly enough to pay cash for it"", ""supply is ""I own this and don't want to own it, therefore I'll sell it""  When investors go about deciding they'd like to buy some stock from people who own it and are wanting to sell it, a market is generated and a price both are willing to sell/buy at is found. If the price is too high/low, you won't sell or buy. The price has to be ""right"" based on your own personal valuation.   Since these trades are done through an exchange and are so common, literally millions of shares are traded per day, you get the best price available at that moment for your shares. If person A is only willing to give you 100 dollars and person B is willing to give you 100.01, screw person A. I'm selling shares to person B.  When this done on a macro-level (millions of shares traded per day) the exchanges will track and make public the ""price movement"" of what the market is willing to give for each and every publicly traded stock.  TLDR: SUPPLY AND DEMAND. DOW USES THEIR OWN METHODS." "What is a stock? A share of stock represents ownership of a portion of a corporation. In olden times, you would get a physical stock certificate (looking something like this) with your name and the number of shares on it. That certificate was the document demonstrating your ownership. Today, physical stock certificates are quite uncommon (to the point that a number of companies don't issue them anymore). While a one-share certificate can be a neat memento, certificates are a pain for investors, as they have to be stored safely and you'd have to go through a whole annoying process to redeem them when you wanted to sell your investment.  Now, you'll usually hold stock through a brokerage account, and your holdings will just be records in a database somewhere. You'll pick a broker (more on that in the next question), instruct them to buy something, and they'll keep track of it in your account.  Where do I get a stock? You'll generally choose a broker and open an account. You can read reviews to compare different brokerages in your country, as they'll have different fees and pricing. You can also make sure the brokerage firm you choose is in good standing with the financial regulators in your country, though one from a major national bank won't be unsafe.  You will be required to provide personal information, as you are opening a financial account. The information should be similar to that required to open a bank account. You'll also need to get your money in and out of the account, so you'll likely set up a bank transfer. It may be possible to request a paper stock certificate, but don't be surprised if you're told this is unavailable. If you do get a paper certificate, you'll have to deal with considerably more hassle and delay if you want to sell later.  Brokers charge a commission, which is a fee per trade. Let's say the commission is $10/trade. If you buy 5 shares of Google at $739/share, you'd pay $739 * 5 + $10 = $3705 and wind up with $3695 worth of stock in your account. You'd pay the same commission when you sell the stock.  Can anyone buy/own/use a stock? Pretty much. A brokerage is going to require that you be a legal adult to maintain an account with them. There are generally ways in which a parent can open an account on behalf of an underage child though. There can be different types of restrictions when it comes to investing in companies that are not publicly held, but that's not something you need to worry about. Stocks available on the public stock market are available to, well, the public. How are stocks taxed? Taxes differ from country to country, but as a general rule, you do have to provide the tax authorities with sufficient information to determine what you owe. This means figuring out how much you purchased the stock for and comparing that with how much you sold it for to determine your gain or loss. In the US (and I suspect in many other countries), your brokerage will produce an annual report with at least some of this information and send it to the tax authorities and you. You or someone you hire to do your taxes will use that report to compute the amount of tax owed. Your brokerage will generally keep track of your ""cost basis"" (how much you bought it for) for you, though it's a good idea to keep records. If you refuse to tell the government your cost basis, they can always assume it's $0, and then you'll pay more tax than you owe.  Finding the cost basis for old investments can be difficult many years later if the records are lost. If you can determine when the stock was purchased, even approximately, it's possible to look back at historical price data to determine the cost.  If your stock pays a dividend (a certain amount of money per-share that a company may pay out of its profits to its investors), you'll generally need to pay tax on that income. In the US, the tax rate on dividends may be the same or less than the tax rate on normal wage income depending on how long you've held the investment and other rules." how do they turn shares into cash that they can then use to grow their business? Once a Company issues an IPO or Follow-On Public Offer, the company gets the Money. Going over the list of question tagged IPO would help you with basics. Specifically the below questions; How does a company get money by going public in an IPO? Why would a company care about the price of its own shares in the stock market? Why would a stock opening price differ from the offering price?  From what I've read so far, it seems that pre-IPO an investment bank essentially buys the companies public shares, and that bank then sells them on the open market. Is the investment bank buying 100% of the newly issued public shares? And then depositing the cash equivalent into the companies bank account? Additionally, as the stock price rises and falls over the lifetime of the company how does that actually impact the companies bank balance? Quite a bit on above is incorrect. Please read the answers to the question tagged IPO. Once an IPO is over, the company does not gain anything directly from the change in shareprice. There is indirect gain / loss. In the United States, when key people in a company buy or sell shares there are reporting requirements.  The definition of key people includes people like the CEO, and large shareholders. There are also rules that can lock out their ability to buy and sell shares during periods where their insider knowledge would give them an advantage. These reporting rules are to level the playing field regarding news that will impact the stock price.  These rules are different than the reporting rules that the IRS has to be able to tax capital gains. These are also separate than the registration rules for the shares so that you get all the benefits of owning the stock (dividends, voting at the annual meeting, voting on a merger or acquisition). "Hmm... Well there are several ways to do that: Go to any bank (or at the very least major ones). They can assist you with buying and/or selling stocks/shares of any company on the financial market. They keep your shares safe at the bank and take care of them. The downside is that they will calculate fees for every single thing they do with your money or shares or whatever. Go to any Financial broker/trader that deals with the stock market. Open an account and tell them to buy shares from company ""X"" and keep them. Meaning they won't trade with them if this is what you want. Do the same as point 2, but on your own. Find a suitable broker with decent transaction fees, open an account, find the company's stock code and purchase the stocks via the platform the broker uses." Another benefit of holding shares longer was just pointed out in another question: donating appreciated shares to a nonprofit may avoid the capital gains tax on those shares, which is a bigger savings the more those shares have gone up since purchase. "Not sure I fully understand your question but my take on it is this: There a lot of people out there that admire companies and own the stock just because they like the company. For example, I know some kids who own Disney stock. They only have a share or two but they keep it because they want to say ""I own a part of Disney.""  Realistically speaking, if they hold or sell the stock it is so minuscule to have any realizable affect on the overall value of the stock which does not really make the company look better from an investor perspective. However, if a company has people that just want to own the stock just like your uncle are indeed ""better"" because they must have provided a product or service that is valued intrinsically." As far as I know, the AMT implications are the same for a privately held company as for one that is publicly traded.  When I was given my ISO package, it came with a big package of articles on AMT to encourage me to exercise as close to the strike price as possible.  Remember that the further the actual price at the time of purchase is from the strike price, the more the likely liability for AMT.  That is an argument for buying early.  Your company should have a common metric for determining the price of the stock that is vetted by outside sources and stable from year to year that is used in a similar way to the publicly traded value when determining AMT liability. During acquisitions stock options often, from what I know of my industry, at least, become options in the new company's stock.  This won't always happen, but its possible that your options will simply translate.  This can be valuable, because the price of stock during acquisition may triple or quadruple (unless the acquisition is helping out a very troubled company). As long as you are confident that the company will one day be acquired rather than fold and you are able to hold the stock until that one day comes, or you'll be able to sell it back at a likely gain, other than tying up the money I don't see much of a downside to investing now.