我平仓了10手$NVDA 20240726 120.0 PUT$ ,先平仓行权价120的sell put,然后开仓行权价115的sell put,这是滚仓操作,避免现在就接正股。First close the sell put with an exercise price of 120, and then open a sell put with an exercise price of 115. This is a rollover to avoid taking over the underlying stock now.