The WisdomTree CBOE S&P 500 PutWrite Strategy Fund seeks to track the performance, before fees and expenses, of the CBOE S&P 500 PutWrite Index (PUT), a collateralized put write strategy on the S&P 500 Index. The strategy is designed to receive a premium from the option buyer by selling a sequence of one-month, at-the-money, S&P 500 Index puts (SPX puts).
https://www.wisdomtree.com/etfs/alternative/putw
https://www.wisdomtree.com/etfs/alternative/putw