My systems got killed this past February (Jan. 30th through Feb. 9th specifically) - losses exceeded my previously-backtested expectations. I've spent some trying to come up with a technical indicator or something that would have flagged and caused me to stop trading during this time period. But everything I've tested results in the systems being way too cautious during other time periods and significantly lowers Sharpe/CAR/MDD. I'm curious if others either had the same experience or already had lower exposure during this period. I'd love some specifics on what signals you were able to look that predicted this drawdown. Thanks for any help!
Joel
Joel