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."
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. You need a source of delisted historical data. Such data is typically only available from paid sources. According to my records, AULT (Ault Inc) began as an OTC stock in the 1980s prior it having an official NASDAQ listing.  It was delisted on 27 Jan 2006.  Its final traded price was $2.94.  It was taken over at a price of $2.90 per share by SL Industries. Source: Symbol AULT-200601 within Premium Data US delisted stocks historical price data set available from http://www.premiumdata.net/products/premiumdata/ushistorical.php Disclosure: I am a co-owner of Norgate / Premium Data. "The mathematics site, WolframAlpha, provides such data. Here is a link to historic p/e data for Apple. You can chart other companies simply by typing ""p/e code"" into the search box.  For example, ""p/e XOM"" will give you historic p/e data for Exxon. A drop-down list box allows you to select a reporting period : 2 years, 5 years, 10 years, all data.  Below the chart you can read the minimum, maximum, and average p/e for the reporting period in addition to the dates on which the minimum and maximum were applicable." "Thanks for the response.   I am using WRDS database and we are currently filtering through various variables like operating income, free cash flow etc.  Main issue right now is that the database seems to only go up to 2015...is there a similar database that has 2016 info?  filtering out the ""recent equity issuance or M&amp;A activity exceeding 10% of total assets"" is another story, namely, how can I identify M&amp;A activity? I suppose we can filter it with algorithm stating if company's equity suddenly jumps 10% or more, it get's flagged" You need a source of delisted historical data.  Such data is typically only available from paid sources. According to my records 20 Feb 2006 was not a trading day - it was Preisdent's Day and the US exchanges were closed. The prior trading date to this was 17 Feb 2006 where the stock had the following data: Open: 14.40 High 14.46 Low 14.16 Close 14.32 Volume 1339800 (consolidated volume) Source: Symbol NVE-201312 within Premium Data US delisted stocks historical data set available from http://www.premiumdata.net/products/premiumdata/ushistorical.php Disclosure: I am a co-owner of Norgate / Premium Data. I've had luck finding old stock information in the Google scanned newspaper archives. Unfortunately there does not appear to be a way to search exactly by date, but a little browsing /experimenting should get what you want. For instance, here's a source which shows the price to be 36 3/4 (as far as I can read anyway) on that date. Try Google Finance Screener ; you will be able to filter for NASDAQ and NYSE exchanges. Interactive Brokers provides historical intraday data including Bid, Ask, Last Trade and Volume for the majority of stocks. You can chart the data, download it to Excel or use it in your own application through their API.  EDIT: Compared to other solutions (like FreeStockCharts.com for instance), Interactive Brokers provides not only historic intraday LAST**** trades **but also historic BID and ASK data, which is very useful information if you want to design your own trading system.  I have enclosed a screenshot to the chart parameter window and a link to the API description. Thanks for your thorough reply.   Basically, I found a case study in one of my old finance workbooks from school and am trying to complete it.   So it's not entirely complicated in the sense of a full LBO or merger model.   That being said, the information that they provide is Year 1 EBITDA for TargetCo and BuyerCo and a Pro-Forma EBITDA for the consolidated company @ Year 1 and Year 4 (expected IPO). I was able to get the Pre-Money and Post-Money values and the Liquidation values (year 4 IPO), as well as the number of shares.   I can use EBITDA to get EPS (ebitda/share in this case) for both consolidated and stand-alone @ Year 1, but can only get EPS for consolidated for all other years. Given the information provided. One of the questions I have is do I do anything with my liquidation values for an accretion/dilution analysis or is it all EPS? If you use Google Finance, you will get incorrect results because Google Finance does not show the dividend history. Since your requirement is that dividends are re-invested, you should use Yahoo Finance instead, downloading the historical 'adjusted' price. 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! Calculating and adjusting cost basis accurately is a daunting task, but there is a (paid) online tool, NetBasis, which will automatically calculate and adjust your cost basis.  It is used by brokerage firms and Fortune 500 companies and is available to the public.  Go to netbasis.com. All you need are the purchase and sale dates and shares of the stock or mutual fund and the system has the rest of the information, such as corporate actions (splits, spin-offs, etc), pricing, and dividends and it also will apply the appropriate IRS rules for inherited and gifted shares. The regulation also gives investors the option to choose calculation methods.  Not only does NetBasis automatically calculate the method you choose, it will also give the results for all options and allow you to choose the best result. NetBasis also provides you with detailed supporting documentation which shows all of the calculations and the adjustments in chronological order. NetBasis has data going back as far as 1925, so it will accurately calculate cost basis for your old American Telegraph and Telephone shares. NetBasis also handles complex investment scenarios such as wash sales, short sales, return of capital, etc. Moderator's note: Disclosure: The answerer's profile indicates they are affiliated with NetBasis. This is fine, but I'd probably spend a moment introducing WACC and it's estimation. It's also useful to link up the enterprise value to share price, so just also mentioning the debt subtraction to get equity value and division by shares for price.  Keep in mind you're usually given like a minute to answer this, so you can afford to be a bit more detailed in some parts. you can check google scholar for some research reports on it.  depends how complex you want to get...  it is obviously a function of the size of the portfolio of each type of asset. do you have a full breakdown of securities held? you can get historical average volumes during different economic periods, categorized by interest rates for example, and then calculate the days required to liquidate the position, applying a discount on each subsequent day. Moody's is now Mergent Online. It's no longer being printed, and must be accessed digitally. In order to browse the database, check with your local public library or university to see if you can get access. (A University will probably require you to visit for access).  Another good tool is Value Line Reports. They are printed information sheets on public companies that are updated regularly, and are convenient for browsing and for comparing securities. Again, check your local libraries.  A lot of the public information you may be looking for can be found on Yahoo Finance, for free, from home. Yahoo finance, will give financial information, ratios, news, filings, analysis, all in one place.