My costly lesson in chasing the Hang Seng breakout

Looking back at the Q3 2021 Hang Seng rally, I made a classic mistake that still stings. $HSI had been consolidating for a while, and when it finally broke out above 26,000, I jumped in with what felt like a reasonable position, but it was at the upper end of my typical sizing for an index. The initial few days saw solid follow-through, confirming my bias, which felt great. My mistake came when the momentum started to fade around 26,800. Instead of taking some profit or at least tightening my stop, I got greedy, convinced it was just a temporary pause before the next leg up towards 27,500. I rationalized that the broader Asian market sentiment was strong, ignoring the subtle divergence in some of the underlying constituents. The inevitable happened: a sharp reversal, exacerbated by global inflation concerns. My stop was hit much lower than it should have been, turning what could have been a decent win into a significant loss. The lesson for me was clear: don't let a strong initial confirmation blind you to fading momentum, and never increase your risk tolerance purely based on conviction. Always respect your initial trade plan, especially profit-taking levels, and be honest about the market's reaction, not just your hopeful narrative.