I agree with Dottie.

Math is both of my son's "things". Both 99th percentile on various tests again and again. Both >99.9th percentile on tests that report out that far.

CogAT for son #1: 88th percentile

CogAT for son #2: 89th percentile

The CogAT's focus seems to be speed with little else. It's a crime that it is used as a sole indicator of giftedness in so many school districts.