Etfs can be held for a long time. However, leveraged ETFs are not suitable for long-term holding because of leverage. Generally, leveraged ETFs are used as short-term or ultra-short-term investment products. Because of the self-leveraged ETF, the gains and losses will increase exponentially, which is a speculative product. Long-term holding is risky. But as a short-term investment, it is a very good variety.