Omnibus Rules Effectiveness - Broadridge

Standard Deviation
Sigma varied from 2 to 6 by 1
Results
– Produced a lot of false alerts
– Performed better for lower threshold violators
– Only Sigma of 2 produced successful alerts
– Threshold of $10K was most effective but resulted in
only 6% success rate
– Worked most effectively for larger patterns picking
up 43% of actual violations
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