This doesn't sound right. The markets are populated with people who will invest hundreds of millions of dollars to outcompete other firms for sub-penny advantages on trades, and, contrary to popular belief, the largest and most successful of those firms are not making so much money that they're upending the finance industry.

So if somebody is making 8% for doing "absolutely nothing", can you explain why somebody else isn't taking them to the cleaners by offering to do the same nothing for 7.9%?