How do I find out how much an old stock certificate is worth?
If you are the owner of the stock, then you would need to take it to a broker. The broker will research the issue (usually at a per hour cost) and be able to tell you what it is worth. If you know what who the surviving company is, then another alternative would be to contact their investor relations office. Depending upon the company, the investor relations office may offer to replace the old certificate with a new one reflecting the current name as well as the correct amount reflecting any splits or dividends. In order to trade the stock, you would have to go through a broker.
