For example, when qqq drops 20%, the 2X (QLD)usually drops less than 40%.
Second, the compounding effect could be positive: meaning the long term gain of QLD is more than 2x gain of qqq.
Volatility decay happens when there are lots of ups and downs.
其实这就是现在AI的普遍问题,在你很懂得领域,他好像用处不大。在你不懂的领域,他听着很有道理,而且很专业,但是往往会误导你,因为你对那个领域没有一个正确的判断。