Sumzero.com Performance
Len Costa, of the CFA Institute, has an interesting piece related to a paper I’ve written with some colleagues at Rice and Creighton.
http://blogs.cfainstitute.org/investor/2012/02/28/do-buy-side-investment-recommendations-add-value/
Here is a picture of the ‘bottomline’:

Long ideas experience a short term spike of around 1% and then drift; short ideas shift down ~2% and then flatline. Overall conclusion: Sumzero.com analyst reports matter to the market.
For the full study, head over to SSRN:














[...] SumZero reports matter to the markets. (Enterprising Investor via Turnkey Analyst) [...]