Pentair is trading 4.02% higher at $72.53, with broad-market optimism the likeliest context for the move. - The broader U.S. market is sharply higher; a midterm-election update described a midday reversal toward broad-market optimism. - No new company-specific announcement explaining the rise appeared in search results; the latest identified company news was its October 27 earnings release. Industrials weakness is a counterpoint, so the explanation remains uncertain.