FIX options flow: unusual options activity in Comfort Systems USA Inc.
Updated 28 September 2026, 09:54 ET
Over the last week the tape recorded 207 unusual options prints in Comfort Systems USA Inc. (FIX), $14.5M of tracked premium, leaning bearish. Bullish premium was $4.8M against $6.8M bearish; $9.8M went into calls and $4.7M into puts, a put call ratio of 0.48. The largest print was $1.2M of FIX 18 Dec 2026 $1,540 calls on 23 September 2026, swept at bid. The last session with prints, 25 September 2026, added 28 prints and $2.1M of premium. FIX closed at $1,658.91 on 25 September 2026, up 0.9%.
This week's unusual flow
Prints from 21 September 2026 to 25 September 2026, 5 sessions. Delayed tier: every print is shown twenty minutes after it executed, and the page is rebuilt after each session.
Net premium is bullish minus bearish premium. The put call ratio is put premium divided by call premium, weighted by money rather than by contract count. Sweeps is the share of prints executed across several exchanges at once. Read the guide: Reading the Pulse.
Largest prints of the week
| Date | Contract | Type | Size | Open int. | Premium | Execution | Sentiment | Tier |
|---|---|---|---|---|---|---|---|---|
| 23 Sep 2026 | FIX 18 Dec 2026 $1,540 calls | Sweep | 50 | 32 | $1.2M | At bid | Bearish | Whale |
| 25 Sep 2026 | FIX 18 Dec 2026 $1,840 puts | Sweep | 19 | 25 | $565K | At bid | Bullish | High conviction |
| 24 Sep 2026 | FIX 21 Jan 2028 $2,120 puts | Sweep | 6 | 0 | $413K | At bid | Bullish | Whale |
| 24 Sep 2026 | FIX 21 Jan 2028 $2,120 puts | Sweep | 6 | 0 | $412K | At ask | Bearish | High conviction |
| 25 Sep 2026 | FIX 20 Nov 2026 $1,900 calls | Sweep | 49 | 3 | $373K | At bid | Bearish | High conviction |
| 24 Sep 2026 | FIX 21 Jan 2028 $2,120 puts | Sweep | 5 | 0 | $346K | At bid | Bullish | High conviction |
| 24 Sep 2026 | FIX 21 Jan 2028 $2,200 calls | Sweep | 10 | 0 | $302K | At midpoint | Neutral | High conviction |
| 24 Sep 2026 | FIX 21 Jan 2028 $2,200 calls | Sweep | 9 | 0 | $272K | At ask | Bullish | High conviction |
| 23 Sep 2026 | FIX 18 Dec 2026 $1,880 puts | Trade | 8 | 18 | $272K | At ask | Bearish | Notable |
| 22 Sep 2026 | FIX 20 Nov 2026 $1,400 puts | Sweep | 39 | 6 | $269K | At ask | Bearish | High conviction |
| 21 Sep 2026 | FIX 20 Nov 2026 $1,700 calls | Sweep | 17 | 0 | $254K | At ask | Bullish | High conviction |
| 22 Sep 2026 | FIX 17 Dec 2027 $1,160 puts | Trade | 10 | 0 | $165K | At ask | Neutral | Notable |
Size above open interest means the trade opened a position larger than everything that existed in the contract the night before. Above ask and below bid are the most aggressive executions. Read the guide: Size versus open interest.
Where the money is aimed
| Expiry | Prints | Premium | Calls share | Net premium |
|---|---|---|---|---|
| 15 Jan 2027 | 79 | $4.1M | 76% | +$376K |
| 18 Dec 2026 | 16 | $2.7M | 65% | -$1.1M |
| 21 Jan 2028 | 20 | $2.4M | 50% | +$502K |
| 17 Dec 2027 | 26 | $1.5M | 85% | -$277K |
| 20 Nov 2026 | 10 | $1.2M | 63% | -$350K |
| 16 Apr 2027 | 22 | $936K | 89% | -$589K |
The most premium, $4.1M, is aimed at the 15 Jan 2027 expiry; the nearest expiry with unusual prints is 20 Nov 2026.
A print in a contract expiring this week is a view about the next few days, often about a known event; a print months out is a different kind of statement. Read the guide: 0DTE options flow.
The last session, 25 September 2026
| Date | Contract | Type | Size | Open int. | Premium | Execution | Sentiment | Tier |
|---|---|---|---|---|---|---|---|---|
| 25 Sep 2026 | FIX 18 Dec 2026 $1,840 puts | Sweep | 19 | 25 | $565K | At bid | Bullish | High conviction |
| 25 Sep 2026 | FIX 20 Nov 2026 $1,900 calls | Sweep | 49 | 3 | $373K | At bid | Bearish | High conviction |
| 25 Sep 2026 | FIX 16 Oct 2026 $1,660 calls | Sweep | 10 | 34 | $86K | At bid | Bearish | |
| 25 Sep 2026 | FIX 16 Apr 2027 $1,750 calls | Trade | 3 | 3 | $75K | At bid | Neutral | |
| 25 Sep 2026 | FIX 16 Apr 2027 $1,750 calls | Trade | 3 | 3 | $75K | At bid | Bearish |
Every print in FIX with its full detail, the live tape, one tap filters and saved screeners: open FIX in Options Sentiment Screener.
Price
The live quote and the price chart sit beside the ticker's flow in the app: open FIX in Options Sentiment Screener.
Analysts
The most recent analyst targets on file, from 6 firms, have a median of $2,134, 28.7% above the last close.
Calls bought at a strike above the average target are a bet that the analysts are too cautious; puts far below the price in a name they like are protection or a strong disagreement. Read the guide: Reading one ticker's flow.
About Comfort Systems USA Inc.
- Exchange
- NYSE
- Sector
- Industrials
- Industry
- Construction
- Headquarters
- HOUSTON, Texas
- Website
- comfortsystemsusa.com
Comfort Systems USA, Inc. provides mechanical and electrical installation, renovation, maintenance, repair, and replacement services. The company offers its services for heating, ventilation, and air conditioning (HVAC) systems, plumbing, piping and controls, off-site construction, electrical, monitoring, and fire protection.
In the same sector
Flow pages for other Industrials names in the S&P 500:
CAT Caterpillar Inc.GE General Electric Co.GEV GE Vernova Inc.RTX RTX Corp.DE Deere & Co.ETN Eaton Corp. plcUNP Union Pacific Corp.BA Boeing Co.
Learn
- What unusual options activity means
- Reading one ticker's flow
- Sweeps, blocks and where a trade printed
- Size versus open interest
- Bullish or bearish, how a print's sentiment is inferred
- The conviction score and whale prints
The live tape for FIX with every print's execution detail, one tap filters for calls, puts, sweeps and 0DTE, saved screeners and, for Realtime subscribers, push alerts and no delay. The same screen is in the iOS and Android apps.
Open FIX in Options Sentiment Screener