You are making a fundamental mistake with your assumption that there is a clear distinction between laypeople and experts in the stock-market, there isn't. Mon

You are making a fundamental mistake with your assumption that there is a clear distinction between laypeople and experts in the stock-market, there isn't. Money managers, mutual fund managers and hedge funds managers make terrible mistakes and lose money all the time, and are usually the 1st to panic. So, there is no such thing as an "expert" in the stock market.