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Watsco is the largest heating, ventilation, air conditioning, and refrigeration products distributor in North America. The company primarily operates in the United States (90% of revenue), with significant exposure in the Sun Belt states. Watsco also has operations in Canada (5% of sales) and Latin America (5% of sales). The company's customer base consists of more than 125,000 contractors that serve the replacement and new construction HVACR markets for residential and light commercial applications.
Watsco Class B trades on the NYSE stock market under the symbol WSO.B.
As of September 30, 2026, WSO.B stock price was flat at $310.90 with 13 million shares trading.
WSO.B has a market cap of $12.61 billion. This is considered a Large Cap stock.
In the last 3 years, WSO.B traded as high as $569.90 and as low as $304.47.
The top ETF exchange traded funds that WSO.B belongs to (by Net Assets): DCOR, DFAC, DXUV.
WSO.B has underperformed the market in the last year with a price return of -19.6% while the SPY ETF gained +16.1%. WSO.B has also underperformed the stock market ETF in the last 3 month and 2 week periods returning -10.2% and -0.5%, respectively, while the SPY returned +3.2% and +0.9%, respectively.
WSO.B support price is $301.87 and resistance is $319.93 (based on 1 day standard deviation move). This means that using the most recent 20 day stock volatility and applying a one standard deviation move around the stock's closing price, stastically there is a 67% probability that WSO.B shares will trade within this expected range on the day.
