Dow Jones, and Nasdaq weren’t down more than 20% in one year from today, would you do it?
If one of those indexes are down more than 20% from today’s price in one year, you simply lose dollar for dollar what the index lost.
Examples:
If the worst performing index is down -19% from today’s price in exactly one year, you make 10%.
If the worst performing index is up 20%, you make 10%
If the worst performing index is down -25%, you lose 25%.