It's not illegal to push a stock up just like it's not illegal to short a stock. Certain rules apply when you become significant share holder.
Buying significant calls will move the market as the market maker buys shares the ensure they can cover. Shorting drops price because it "creates" shares. Even six figure trades can move the market,
Buying significant calls will move the market as the market maker buys shares the ensure they can cover. Shorting drops price because it "creates" shares. Even six figure trades can move the market,