http://www.direxioninvestments.com/etf-faq#5
Q. What happens if the value of the index that a Direxion ETF is tracking moves more than 33% in one day?
"Direxion Shares reserves the right to be responsive to index movements up to, but not beyond, a certain point. For example, if a Bull Fund’s target index gained 25%, the Fund would be expected to gain 75%. However, if the target index gained 30%, the Fund’s portfolio might not respond to the index gains which result in the difference between the 25% daily movement from 25% to 30%—meaning the Fund’s return would be capped for the day at 75%"
.
Q. What happens if the value of the index that a Direxion ETF is tracking moves more than 33% in one day?
"Direxion Shares reserves the right to be responsive to index movements up to, but not beyond, a certain point. For example, if a Bull Fund’s target index gained 25%, the Fund would be expected to gain 75%. However, if the target index gained 30%, the Fund’s portfolio might not respond to the index gains which result in the difference between the 25% daily movement from 25% to 30%—meaning the Fund’s return would be capped for the day at 75%"
.
