Artisan Mid Cap Fund on Comfort Systems USA, Inc.

Comfort Systems USA provides heating, ventilation and air-conditioning services and has substantial exposure to data-center construction. Demand from hyperscaler customers now accounts for a majority of revenue. The company reported first-half organic revenue growth of 48% alongside continued margin expansion, leading management to raise full-year guidance. Despite recent share-price weakness, the fund believes Comfort Systems is well positioned to benefit from continued data-center infrastructure investment and retained a position after trimming during the month.