No its not “completely rigged.” A huge amount is speculative, but if you concentrate on buying good companies, you make money.
About 5 years ago I bought a sizeable number of Costco shares. Have you ever been to Costco where its NOT crowded? Clearly a great company with robust sales. I’ve more than doubled my money.
Thats just one example (I won’t share the duds, because I’ve had a few). But those insisting its “all rigged” have no idea how investing works.
costco is an excellent investment.