You have several options for investing your money with a corporation that you think will earn you money. You can invest in a company using warrants, among other investment options (such as trading common stock). Warrants give holders the right to buy an underlying security at a specified price, quantity and time in the future. Unlike options, warrants are issued by companies themselves. Warrants are meant for longer term investing, as they are "high-risk, high-return investing tools," according to Investopedia. They can be traded by using the company's symbol for their particular warrants.
Find the website for the company you are searching for the warrant symbol for in a search engine. Enter the name of the company and "investor relations" or a similar variation into a search engine. Look for the word "Warrant," "Warrants" or the stock symbol, followed by "WT" or "+". "WT" and "+" are two additions to the common stock symbol, signifying that you are looking at the current trading price for warrants, not common stock.
Call your company's investor relations hotline to ask about the warrant symbol. Since there is no central database of warrants online, the company will be able to tell you whether it offers warrants. The phone number is available on the company's investor relations website.
Type the name of the company into Google Finance. For example, type in "Zion Oil and Gas" if you are looking the warrant symbol for this company. The symbols are listed under "Recent Quotes" on the left side of the page. For example, the regular stock symbol for this company is "ZN," while the symbol for the company's warrants is "ZNWAZ."