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AFTER HRS · 18:25 ET
Market ClerkRecap
Wed Oct 21 · after hours2 signals today106 insider buys this week · $305.5MCIRO short report next: Oct 31The week ahead

FIX

COMFORT SYSTEMS USA INC
NYSE · INDUSTRIALS · ELECTRICAL WORK
1,401.27
+4.18 +0.30%
USD · close Oct 21

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Short interest

FINRA · TWICE MONTHLY
Report dateShares shortChange% of shares outAvg daily volumeDays to cover
2026-08-31910K−5K2.59%412K2.2
2026-08-14915K+219K2.60%379K2.4
2026-07-31696K−143K1.98%621K1.1
2026-07-15839K+93K2.38%435K1.9

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