How to find historical stock price for a de-listed or defunct company?
http://www.euroinvestor.com/exchanges/nasdaq/macromedia-inc/41408/history will work as DumbCoder states, but didn't contain LEHMQ (Lehman Brother's holding company). You can use Yahoo for companies that have declared bankruptcy, such as Lehman Brothers: http://finance.yahoo.com/q/hp?s=LEHMQ&a=08&b=01&c=2008&d=08&e=30&f=2008&g=d but you have to know the symbol of the holding company. "Such data is typically only available from paid sources due to the amount of research involved in determining the identity of delisted securities, surviving entities in merger scenarios, company name changes, symbol changes, listing venue changes, research of all capital events such as splits, and to ensure that the data coverage is complete. Many stocks that are delisted from a major exchange due to financial difficulties are still publicly tradeable companies with their continuing to trade as ""OTC"" shares.  Some large companies even have periods where they traded for a period of their history as OTC.  This happened to NYSE:NAV (Navistar) from Feb 2007 to July 2008, where they were delisted due to accounting statement inaccuracies and auditor difficulties.   In the case of Macromedia, it was listed on NASDAQ 13 Dec 1993 and had its final day of trading on 2 Dec 2005.  It had one stock split (2:1) with ex-date of 16 Oct 1995 and no dividends were ever paid. Other companies are harder to find.  For example, the bankrupt General Motors (was NYSE:GM) became Motoros Liquidation Corp (OTC:MTLQQ) and traded that way for almost 21 months before finally delisting. In mergers, there are in two (or more) entities - one surviving entity and one (or more) delisted entity.  In demergers/spinoffs there are two (or more)  entities - one that continues the capital structure of the original company and the other newly formed spun-off entity.  Just using the names of the companies is no indication of its history. For example, due to monopoly considerations, AT&T were forced to spinoff multiple companies in 1984 and effectively became 75% smaller.  One of the companies they spunoff was Southwestern Bell Corporation, which became SBC Communications in 1995.  In 2005 SBC took over its former parent company and immediately changed its name to AT&T.  So now we have two AT&Ts - one that was delisted in 2005 and another that exists to this day. Disclosure: I am a co-owner of Norgate Data (Premium Data), a data vendor in this area."
Its pretty much always a positive to have large institutional investors. Here's a few cases where I can see an argument against large institutional investors: In recent years, we've seen corporate raiders and institutional investors that tend to influence management in ways that are focused on short term gain. They'll often go for board seats and disrupt the existing management team. It can serve as a distraction and really hurt morale. Institutional investors also have rules in their prospectus that they are required to abide by. For example, some institutional investors will not hold on to stock below $5. This really affected major banking stocks, some of which ended up doing reverse stock splits to keep their share price high. Institutional investors will also setup specific funds that require a stock to be listed as part of an index (i.e. the SPY, DJIA etc.,). When a stock is removed from an index, big investors leave quickly and the share price suffers.  In recent months, companies like Apple have made their share price more affordable to attract retail investors. It gives an opportunity for retail to feel even more connected to the company. I'm not sure how much this affects overall sales... Generally, a good stock should be able to attract both retail and institutional investors. If there's not a good mix, then its usually a sign that somethings amiss. "Not cumulative volatility. It's cumulative probability density. Time value isn't linear because PDFs (probability distribution function) aren't linear. It's a type of distribution e.g. ""bell-curves"") These distributions are based on empirical data i.e. what we observe. BSM i.e. Black-Scholes-Merton includes the factors that influence an option price and include a PDF to represent the uncertainty/probability. Time value is based on historical volatility in the underlying asset price, in this case equity(stock). At the beginning, time value is high since there's time until expiration and the stock is expected to move within a certain range based on historical performance. As it nears expiration, uncertainty over the final value diminishes. This causes probability for a certain price range to become more likely.  We can relate that to how people think, which affects the variation in the stock market price. Most people who are hoping for a value increase are optimistic about their chances of winning and will hold out towards the end. They see in the past d days, the stock has moved [-2%,+5%] so as a call buyer, they're looking for that upside. With little time remaining though, their hopes quickly drop to 0 for any significant changes beyond the market price. (Likewise, people keep playing the lottery up until a certain age when they're older and suddenly determine they're never going to win.)  We see that reflected in the PDF used to represent options price movements. Thus your time value which is a function of probability decreases in a non-linear fashion.  Option price = intrinsic value + time value At expiration, your option price = intrinsic value = stock price - strike price, St >= K, and 0 for St < K." There are two terms that are related, but separate here: Broker and Market Maker.  The former is who goes and finds a buyer/seller to buy/sell shares from/to you.   The latter (Market Maker) is a company which will agree to partner with you to complete the sale at a set price (typically the market price, often by definition as the market maker often is the one who determines the market price in a relatively low volumne listing).  A market maker will have as you say a 'pool' of relatively common stock (and even relatively uncommon, up to a point) for this purpose. A broker can be a market maker (or work for one), also, in which case he would sell you directly the shares from the market maker reservoir.  This may be a bad idea for you - the broker (while obligated to act in your interest, in theory) may push you towards stocks that the brokerage acts as a market maker for. Center for Research in Security Prices would be my suggestion for where to go for US stock price history. Major Asset Classes 1926 - 2011 - JVL Associates, LLC has a PDF with some of the classes you list from the data dating back as far as 1926. There is also the averages stated on a Bogleheads article that has some reference links that may also be useful. Four Pillars of Investing's Chapter 1 also has some historical return information in it that may be of help. "Google Finance certainly has data for Tokyo Stock Exchange (called TYO on Google) listings.  You could create a ""portfolio"" consisting of the stocks you care about and then visit it once per day (or write a script to do so)." "I kind of understand the ""basics"", and have done a couple (with the assistance of pre-made excel sheets haha), I just don't feel that I'm creating an actual valuable valuation when I do one. While on the topic though, do you know where an individual investor can calculate the cost of debt for the WACC? I've been looking on morningstar and search up that public company and take the average of the coupon on all outstanding bonds. I don't feel like that's very correct though :(" "When people talk about ""the price"" of a stock, they usually mean one of the following: Last price:  The price at which a trade most recently took place.  If someone sold (and someone else bought) shares of XYZ for $20 each, then until another trade occurs, the last price of the stock will be quoted at $20. Bid price: The highest price at which someone is currently offering to buy the stock. Ask price: The lowest price at which someone is currently offering to sell the stock. As you can see, all of these are completely determined by the people buying and selling the stock." Good day! Did a little research by using oldest public company (Dutch East India Company, VOC, traded in Amsterdam Stock Exchange) as search criteria and found this lovely graph from http://www.businessinsider.com/rise-and-fall-of-united-east-india-2013-11?IR=T :  Why it is relevant? Below the image I found the source of data - Global Financial Data. I guess the answer to your question would be to go there: https://www.globalfinancialdata.com/index.html  Hope this helps and good luck in your search!