Are Fidelity and Schwab literally free to trade on?

I have an advisor that charges just under 1%. I'm not comfortable to invest on my own yet, but I'm getting there. Just reading about Fidelity and Schwab. I can't seem to find the fine print anywhere. I know there may be expense ratios for actual funds, but other than that are they literally free? Is there some magic number like if I invest $100k it's going to start charging? How can they be legitimately free? Are there hidden fees? submitted by /u/iloveu3thousand [link] [comments]