Even though the APY of this strategy is -9.73%, it is more than compensated by the accumulation of ETH at an average price of $1,886, given you bought ETH whenever the cash-covered put expired in the money. This is ~ 37.57% ($3,021-$1,886/$,3021 * 100) lower compared to the average accumulation price of $3,021 if you purchase ETH outright every week, making cash-covered puts the most economical way to accumulate blue-chip assets such as Ethereum and Bitcoin from a long-term perspective.