Advertisements on Google Finance appear on the homepage and on company summary pages (such as the summary page for AAPL). We use automated targeting techniques to display ads that are as relevant as possible. More information about our decision to include ads is available on the official Google Finance blog.
Information on Google Finance is unaffected by the inclusion of ads
Google Finance provides up-to-date financial information, news, blog posts, and access to lively discussions; these services are entirely separate from the ads on our site. A company's status as an advertiser with Google does not affect the way data and information about that company are displayed on Google Finance.
Information for advertisers
If you're interested in advertising on Google Finance, you need to be an advertiser with Google AdWords. If you're already an AdWords advertiser, please contact your support team for more information.