Earlier quoted context omitted.
That makes sense too (avoiding competition). But it's not what the quoted article says. Institutional trading (like mutual funds) certainly is a problem for market makers: > Sometimes, when a customer buys 100 shares at $100.01, it then buys another 100 shares at $100.02, and another 100 shares at $100.03, and keeps going until it has bought 10,000 shares and pushed the price up dramatically. The market maker who sol…
Indeed, this isn't a comment on your summary (which I have no reason to not believe to be accurate). I'm commenting on the ideas behind the article itself. Still, I disagree. Even a large order won't "move" the market by itself (unless you're the Fed). At best, it might trigger a flash crash (we've seen a few of these in the past few years), where liquidity temporarily dries up (HFT market makers remove their passive…
And continuous movement of price in one direction is bad for market makers. Read the linked article, it explains why.