SumZero is a financial utility exclusive to the buyside where investors share actionable ideas with one another and grow their professional networks.

SumZero is the leading global community for hedge fund and mutual fund investment professionals with 6264 members. Nearly every major hedge fund and mutual fund is represented in SumZero's userbase. SumZero members have access to a database of thousands of actionable investment ideas written exclusively by their peers at other elite hedge funds/mutual funds. To learn more and to apply for membership, please click here.
Simply fill out the information below and you will automatically be added to SumZero's free Weekly Dispatch loaded with actionable ideas and content from the SumZero universe. You will also receive one, full highly-rated SumZero investment pitch every quarter. Your information will not be sold to third-parties and you will receive no additional emails beyond the Weekly Emails and one SumZero investment write-up each quarter as well as infrequent notifications of SumZero service updates. Please click here to sign up for our Individual Investor email list.
About SumZero

SumZero is the leading global community for buyside investment professionals. The site has rapidly grown to 6264 elite hedge fund, private equity, and mutual fund analysts - almost every brand-name hedge fund and mutual fund is represented in SumZero's user base.


The concept is simple. There are 3928 full-length, peer-rated investment write-ups in SumZero's database (covering equities, credit, macro, commodities, and other asset classes). By contributing one idea, a member gains access to the entire database.


Additionally, there are thousands of companies in SumZero's database of expertise companies, each of which is tied to one or more buyside analysts. An analyst can easily identify a list of other leading buyside analysts who have done work on the company he/she is interested in and contact them to compare notes, deepen each other's understanding, and build one's professional network.

Sample Investment Ideas
Member Snapshot
  • Jim Pallotta
    Raptor Capital Management
    Portfolio Manager
    $250MM in AUM
    Umass Amherst
  • Lisa Rapuano
    Lane Five Capital Management
    Portfolio Manager
    $150MM in AUM
    Yale University
  • Ken Shubin Stein
    Spencer Capital
    Portfolio Manager
    $150MM in AUM
    Columbia University
  • Brad White
    Carlson Capital
    Portfolio Manager
    $5BN in AUM
    The Wharton School, University of Pennsylvania
  • Jay Kilroy
    Willis Investment Counsel
    Portfolio Manager
    $250MM in AUM
    Kellogg School of Management