It seems that there are many people out there making extremely consistent money using high frequency trading algorithims. These people are well capitalized and have high costs / expensive infrastructure. 1) Do these people have any incentive to seek outside capital? I heard that some of these people have zero losing months. They might lose for a day or a week but never a losing month. If that's the case, I'm wondering if they'd even bother seeking outside capital and just risk their own money instead. Is that what they do or does more leverage from outside capital provide enough of an incentive? 2) Are there resources out there (maybe magazines, literature from a fund of funds) that actually have data on these companies and offer opportunites to invest in them? It just seems like typical retail investors know nothing about this world. If there are that many hedge funds succeeding in HFT, I'm wondering why they are not more well known among investors.