You don't have to answer but your questions are odd for someone with experience in the industry. But let's get into it:

How is performance made public? The same way people know what "stealth" startups are doing. Sometimes a document leaks and sometimes people talk. Usually both. Let's just say a manager is super secretive. Do you know how many people in the chain know performance anyway... Current and former employees. Current and former recruiters of these employees. Current and former clients. Current and former consultants to those clients. etc... And you're saying all these people also don't have that human urge to brag about these rock stars of the investment world? OK.

Even if that were the case, everyone has a cousin at State Street or HSBC, these people take coffee breaks and love to gossip performance and secrets breakdown there.

This is like Fermi's paradox. If all these funds out there are beating the market, then where the hell are they??

All of the funds beating the market are secretive and successfully secretive? For decades?

If it was as common as you imply there should be more of them known to the public by choice or by accident. That is logic.

Don't be the guy who mortgages his house to buy Herbalife products and tells his wife this is your year.

The comment above said 99.9% are not beating the market. There are thousands of funds out there. All funds are filing Form ADV's now...We know who exists. So yes there's a few people who do beat the market. Those 3 Russian guys in Texas and that story about the MIT PhD's working out of a house outside Miami and so yes, there's a few examples out there. Dinky family offices don't count. But no, there's a not a bunch of professional investors with serious weight under management and outside clients beating the market over a secular horizon.

There's a handful, and if you are at one of them congrats to you. But to come on a forum saying there's a bunch of professional investors beating the market, they just all happen to super secretive billionaires and they don't tell anyone about it. That's misleading. That's tech back office got your info from a e-book kinda talk. And it would be at odds with your original thesis that folks that beat the market are secretive and don't talk. So it makes me think you don't work at one, you just want to believe they exist. But again if you do work at one, congrats. Are you hiring? DM me.

So where are they?

https://en.wikipedia.org/wiki/Fermi_paradox