I once entered a $BTC swing trade and watched the price wobble. I set a clear entry, a target, and an invalidation level. The invalidation level is the price point where my original thesis is proven wrong. If the market hits that line, I exit immediately, even if the target is still far away. For example, I bought $BTC at $27,800, aiming for $29,500. My invalidation was $27,200, just below the recent swing low. When price fell to $27,200, the momentum that justified my long was gone, so I closed the trade. Look, i preserved capital and avoided a deeper loss. Most traders skip the invalidation. They think “stop‑loss” is enough, but they set it too tight or forget it entirely. Without a rule that says “this trade is invalid if X happens,” emotions take over and losses grow. What price would I consider an invalidation if I were trading $ETH on a breakout?