Whether it's worth your time messing about with this is a separate matter entirely.
[1] https://www.amazon.com/Principles-Corporate-Finance-Richard-...
Yeah, transaction fees can really eat into your gains unless you're a very good picked or are interesting millions.
Buying 20 stocks would only cost you ~$120 (at $6/trade). For a $100k portfolio, that's an expense ratio of only 0.12% if you did it once per year.
You're also more vulnerable to losing a bit of money to the bid-ask spread than Vanguard or Fidelity are.
Buying individual stocks lets you exercise some level of moral control over which companies you tacitly back. Don't want to support diabetes-inducing sugar water? Then avoid soda companies. Don't want to support environmentally-unsound logging, mining, or petro companies that exploit unregulated externalities? Great, you can select the ones that don't. Don't want to back companies that exploit 3rd-world sweathshops -- there again, you can.
Investment dollars are like voting... and generally speaking, picking individual stocks is akin to evaluating a politician based on their policies rather than voting strictly along party lines.
(Edit: as an aside, you can find "Socially Conscious" ETFs to help offset this concern.)
So thought experiment on this. Say 49.5% of the world buys pure index fund. 49.5% of the world what you said... and say, all avoided Pepsi stock. Wouldn't that mean that Pepsi stock is undervalued from a PE standpoint, and the 1% of investors left would go 100% in Pepsi, and make a crapload of money?
I totally get voting with your money. If you think some company is absurd for some reason, avoid buying their product. But to avoid buying stock? I think all you do is create an investment opportunity for someone savvy with numbers to make big money, and the company feels no different.
Please correct me if I am wrong though, I might be missing something in this argument.
There are other reasons to buy individual stocks but they generally aren’t easy. Deciding what stocks are considered socially acceptable frequently devolves into the same “lesser of evils” decisions as picking politicians.
No, not really. If the market is efficient, the price of a given security isn't dependent on whether or not you've invested in it. Your conscience is clear in that you haven't profited from <whatever> but you haven't affected anything.
Investment can be like voting in the sense that you can vote your shares, or even take legal action, as an investor and perhaps cause change that way. Sadly there's no way right now to do this if you own shares in an index fund.