Renowned financial commentator Jim Cramer shared his "20% rule" in the latest episode, designed to help investors lock in profits and manage risk after significant stock gains. He suggests that when a stock rises by 20% or more, investors should sell 5% to 10% of their holdings to realize some gains; if the stock price continues to climb another 20%, a similar proportion of the position can be reduced again. Cramer emphasized that discipline must take precedence over conviction, and the cashed-out funds can be used to buy the dip when prices fall, thus forming a continuous cycle of risk management.