If you’ve ever bought an options contract, watched the underlying move exactly where you expected, and still lost money, you’ve already met theta. You just might not have been formally introduced. Theta is the silent tax every options buyer pays every single day. It doesn’t care about your analysis. It doesn’t care about the news catalyst you’ve been tracking. It just keeps ticking, grinding your contract’s value down toward zero. For sellers, that same relentless clock is a paycheck. ...