设一个QQQ/SPY的比值，比值降到一定数字就调仓一部分到QQQ里，避免最坏的情况就是一下子都买QQQ买到相对最高点
WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.
Copyright ©1998-2025 wenxuecity.com All rights reserved. Privacy Statement & Terms of Use & User Privacy Protection Policy
