As an investor: Very happy with my "QQQ" (NASDAQ-100 ETF) investment, but my more diverse retirement portfolio is nowhere near as good. I have recently been buying hard hit stocks that I think will survive over the long term: Disney, Marriott..
As an employee: well, the trick is to remain employed.
https://www.portfoliovisualizer.com/backtest-portfolio?s=y&t...
Investing in Amazon is almost as profitable as a 3x leveraged parity risk bet on QQQ. I get what you are saying, "buy when people are fearful", but do you really think it will be more profitable than betting on the top 6 tech stocks?
I guess I don't believe in the statistical basis of the risk calculations (bell curve is an invalid model for sure for stocks), so only one stock is way riskier than you would think and tech only is already exposing you to some kinds of systemic risk.
https://www.visualcapitalist.com/a-visual-history-of-the-lar...
https://howmuch.net/articles/100-years-of-americas-top-10-co...
QQQ would be a hedge on "big" but not necessarily just these current big.
It's mostly companies that do well in any market or have a habit of surviving massive market disruptions. Sort by founded date. Almost all of them are 2000 or older.