Max pain is the price where the total value of all open calls and puts would be lowest at expiration, so option buyers as a group would lose the most. Some traders watch it as a level the stock may drift toward near expiration, because option sellers, often market makers, hedge their positions in ways that can pull the price toward heavily traded strikes. It is a theory, not a guarantee.

As of the Nov 4, 2026 close, max pain for Pentair options about one week from expiration was $55.00. The chart above shows the exact max pain for each expiration date.

Pentair closed above its near-term max pain on 13 of the last 20 trading days. On Nov 4, 2026 it closed at $72.03, 31.0% above max pain of $55.00.

Over the last 20 trading days, near-term max pain for Pentair ranged from $52.35 to $55.00. It went from $52.49 on Oct 8, 2026 to $55.00 on Nov 4, 2026. See the PNR max pain history for a longer view.

Pentair is a global leader in the water treatment industry, with 10,000 employees and a presence in 25 countries.