5k contracts is a massive trade my dude. At a multiplier of 100, that's a notional volume of 500k shares. That ought to move anything. Even AAPL as market maker

5k contracts is a massive trade my dude. At a multiplier of 100, that's a notional volume of 500k shares. That ought to move anything. Even AAPL as market makers balance their books. But I mean, generally these are one leg of a 4 leg option trade strategy. So it won't actually be a big net notional exposure in most cases (apart from having trades on the underlying to hedge themselves out).