For an inverse ETF, stock returns would be positively correlated with volatility shocks — for example, large price declines in the underlying lead to large price increases in the inverse ETF. (link.springer.com)
I was also told that a similarly large price increase years ago did not have any adverse effect on participation. (thelunchtray.com)
Valeant's prescription drug sales began to unravel last year as its history of large price increases drew sharp criticism and the attention of lawmakers as well as New York and Massachusetts attorneys general, which opened investigations. (finalternatives.com)