In-depth dismantling of the core of financial transaction risk control: from the "lifeline" of fixed stop loss to the "profit lock" of moving stop loss, detailing how to use the functions of the WMAX platform to build a dynamic defense system. This article analyzes the "2% principle" and the logic of Kelly's formula in fund management, compares the life and death differences between pyramid replenishment and inverted pyramid replenishment, to help you keep your principal in the volatile market in 2026 and achieve steady compound interest growth.