So back to my original question, if you buy crsh and tsly are they inverse

Yes, both CRSH and TSLY are inverse ETFs. Here's why:

1. **CRSH's Inverse Relationship**: CRSH is designed to benefit when the TSLA share price decreases. It achieves this through a synthetic covered put strategy, which involves purchasing and selling call and put option contracts based on TSLA's share price.
2. **TSLY's Inverse Relationship**: TSLY also operates as an inverse ETF, as it seeks to generate current income from a synthetic covered put strategy on Tesla. Like CRSH, TSLY does not invest directly in TSLA but rather uses options to gain inverse exposure to TSLA's share price changes.

In summary, both CRSH and TSLY are inverse ETFs that stand to gain when Tesla's share price decreases. However, their potential for gains is limited, and they are subject to risks, including the risk of losses if TSLA's share price increases.