The day of the first outlier move experienced in the market, expect to have a loss that is roughly 15% of the total credit received of your strangle.

However, on average, trades that had outlier price moves in the underlying were more profitable because outliers tend to cluster, and thus options become priced to anticipate more outliers.

The key is to stay small before the first outlier move (when IV is low) in order to take advantage of the higher premiums that follow.