Tail wagging the dog! Every OpEx we're seeing stocks just GLUE themselves to the max pain strike — the expiring level with the biggest open interest. It's wild. Derivatives ARE the underlying now. The actual stock? That's the derivative! Market makers hedging gamma flows are literally driving price action more than fundamentals on these expiration days. If you're trading around OpEx, KNOW where the big strikes are. Don't fight the tape when dealer positioning is pinning names. This is the new reality — options volumes have exploded, and the tail is absolutely wagging the dog. Watch those strikes!