From FactCheck.com
"Of the majority opinions that Judge Sonia Sotomayor has authored since becoming an appellate judge in 1998, three of them have been overturned by the Supreme Court.
Our search for appellate opinions by Sotomayor on the LexisNexis database returned 232 cases. That's a reversal rate of 1.3 percent.
But only five of her decisions have been reviewed by the justices. Using five as a denominator, the rate comes out to 60 percent(which is low, according FactCheck.com)."