Teaser Stock Performance Tracking

These spreadsheets track the performance of stocks touted in investment newsletter teaser emails, assuming a purchase of the stock on the date the email was first seen or written about by the Gumshoe and held forever. Stock prices are live with a 20 minute delay, and the sorting (best performers at the top) is updated … every once in a while. Do note that occasionally splits or consolidations or takeovers happen that aren’t necessarily reflected in these spreadsheets — if you notice one that’s off, please let us know.

There is a different spreadsheet for each year, based on the year the stock was first teased, so you’ll see separate boxes for each year’s picks — sorry, this is inconvenient but it’s the only way to share the document through Google with live prices. If you want to see the spreadsheets independently, 2013 is here, 2012 is here, 2011 is here, 2010 is here, 2009 is here, 2008 is here and 2007 is here. If you use those links you can copy and paste the spreadsheets into Excel or your own document in Google Docs, resort, or do what you like with them.

For more information about these companies, use the link in the right column of the spreadsheet to visit the original Stock Gumshoe writeup. New companies are added to the spreadsheet usually every few weeks (though we’ve been known to fall behind), so the most recent teaser companies will not necessarily be on this page.

To submit a new teaser email or website ad for review, forward the email or link to the Gumshoe at Thanks for visiting!

2013 Spreadsheet

2012 Spreadsheet

2011 Spreadsheet

2010 Spreadsheet

2009 Spreadsheet

2008 Spreadsheet

2007 Spreadsheet