PTB has experienced a typical oscillation at the resistance zone between 0.74 and 0.85, with a pattern of initial surge followed by a drop. We pointed out this key resistance zone yesterday, and now the trend is indeed as expected. There is significant selling pressure at higher levels, so we promptly implemented a lock-in strategy above, which allows us to participate in potential breakouts while avoiding the risk of short-term pullbacks. The overall rhythm has been managed quite prudently.