Comfort Systems USA (FIX) Options Chain

NYSE: FIXIndustrialsEngineering & ConstructionUSD

1,715.69+9.30 (+0.55%)

At close: Oct 9, 4:00 PM ET · Delayed 15 min

Expiration date

Expiration: Nov 20, 2026
Days to expiration: 41
Share price: $1,715.69
Put/call ratio (OI): 0.91
Put/call ratio (volume): 1.74
ATM implied volatility: 63.6%
Expected move: ±$365.66
Open interest (C / P): 854 / 779

FIX options summary

The FIX options chain for the November 20, 2026 expiration lists 40 call and 57 put contracts, with 41 days until expiration. Open interest stands at 854 calls and 779 puts, a put/call ratio of 0.91, which is fairly balanced between calls and puts. At-the-money implied volatility near the $1,720.00 strike is 63.6%, which implies the market expects a move of about ±$365.66 (21.3%) in Comfort Systems USA stock by expiration.

The most open interest sits at the $1,680.00 call (250 contracts) and the $1,200.00 put (106 contracts).

Summary generated from market data by MetaCap's automated system. Methodology

FIX options chain · November 20, 2026

FIX calls and puts by strike price. Shaded cells are in the money.
Calls							Puts
OI	Vol	IV	Last	Bid	Ask	Strike	Bid	Ask	Last	IV	Vol	OI
—	—	—	—	—	—	800.00	0.00	4.90	0.30	105.5%	14	97
—	—	—	—	—	—	820.00	0.00	4.90	0.90	102.4%	1	89
—	—	—	—	—	—	840.00	0.00	4.90	1.25	99.3%	12	19
—	—	—	—	—	—	880.00	0.00	4.90	2.20	93.4%	6	3
—	—	—	—	—	—	900.00	0.00	3.50	1.30	86.3%	2	1
—	—	—	—	—	—	920.00	0.00	4.90	1.25	87.8%	2	2
—	—	—	—	—	—	940.00	0.05	5.90	1.00	87.6%	1	7
—	—	—	—	—	—	960.00	0.20	5.90	1.74	85.2%	13	2
—	—	—	—	—	—	980.00	0.10	9.10	1.77	88.3%	2	7
—	—	—	—	—	—	1,000.00	0.20	8.50	2.15	84.7%	3	6
—	—	—	—	—	—	1,020.00	0.05	10.00	7.93	84.0%	1	1
—	—	—	—	—	—	1,040.00	0.05	10.00	8.50	81.3%	—	1
—	—	—	—	—	—	1,060.00	0.10	10.10	2.67	78.8%	1	2
—	—	—	—	—	—	1,080.00	0.10	10.10	6.71	76.2%	1	1
—	—	—	—	—	—	1,100.00	0.10	10.10	5.05	73.6%	1	3
—	—	—	—	—	—	1,120.00	0.30	10.30	9.83	71.5%	3	4
—	—	—	—	—	—	1,140.00	0.80	10.80	11.08	70.2%	3	6
—	—	—	—	—	—	1,160.00	1.90	11.90	6.60	70.0%	26	30
—	—	—	—	—	—	1,180.00	2.75	12.60	6.00	68.9%	2	4
—	—	—	—	—	—	1,200.00	3.40	12.50	8.30	66.8%	102	106
—	—	—	—	—	—	1,220.00	4.80	14.80	11.30	67.3%	1	3
1	1	74.2%	523.00	484.00	501.40	1,240.00	6.50	16.50	17.50	67.2%	—	4
—	—	—	—	—	—	1,260.00	8.50	18.50	22.80	67.2%	10	13
—	—	—	—	—	—	1,280.00	10.30	20.30	14.00	66.6%	1	4
—	—	—	—	—	—	1,300.00	12.20	22.20	15.70	66.0%	1	21
—	—	—	—	—	—	1,320.00	12.00	21.80	24.20	62.9%	10	15
—	—	—	—	—	—	1,340.00	18.30	28.30	22.84	66.3%	1	8
—	—	—	—	—	—	1,360.00	21.70	31.70	24.77	66.3%	2	4
—	—	—	—	—	—	1,380.00	25.00	35.00	20.60	65.9%	10	11
—	—	—	—	—	—	1,400.00	28.40	35.70	33.95	64.4%	5	69
—	—	—	—	—	—	1,420.00	31.90	41.00	36.51	64.5%	2	8
—	—	—	—	—	—	1,440.00	37.70	47.70	46.00	65.5%	1	3
—	—	—	—	—	—	1,450.00	38.30	48.30	44.60	64.3%	4	6
—	—	—	—	—	—	1,460.00	41.00	51.00	45.80	64.3%	1	4
—	—	—	—	—	—	1,470.00	44.70	54.70	46.40	65.0%	5	13
—	—	—	—	—	—	1,480.00	45.90	55.90	52.90	64.0%	2	4
—	—	—	—	—	—	1,490.00	48.70	58.70	52.00	64.0%	1	13
3	2	67.3%	308.00	270.70	286.00	1,500.00	51.30	60.00	59.52	63.4%	2	29
2	2	67.0%	235.90	264.10	278.00	1,510.00	53.40	63.00	62.40	63.1%	2	3
16	9	66.8%	275.00	256.00	272.00	1,520.00	—	—	—	—	—	—
—	—	—	—	—	—	1,530.00	60.30	70.30	104.35	63.4%	1	2
—	—	—	—	—	—	1,540.00	63.60	73.60	48.90	63.4%	7	6
—	—	—	—	—	—	1,560.00	69.90	79.80	61.00	62.9%	2	6
—	—	—	—	—	—	1,570.00	74.30	83.90	78.00	63.2%	1	7
—	—	—	—	—	—	1,580.00	77.30	87.30	84.58	62.9%	7	9
3	3	66.1%	212.50	206.00	220.00	1,600.00	86.00	96.00	108.76	63.2%	7	17
4	4	66.1%	199.50	200.00	214.20	1,610.00	90.80	100.60	94.10	63.4%	2	10
6	1	65.8%	202.60	194.00	207.70	1,620.00	93.70	103.70	97.80	62.8%	1	13
2	2	65.8%	180.45	188.70	202.00	1,630.00	98.90	108.90	102.20	63.2%	4	5
14	1	66.1%	222.00	183.40	198.00	1,640.00	101.10	113.70	109.23	62.7%	2	5
3	4	65.5%	163.95	177.20	190.90	1,650.00	104.10	120.00	101.30	62.7%	1	5
8	2	65.5%	182.10	172.10	185.60	1,660.00	—	—	—	—	—	—
2	19	65.3%	173.10	166.00	180.40	1,670.00	—	—	—	—	—	—
250	1	65.8%	185.50	163.30	175.50	1,680.00	118.00	133.80	112.35	62.4%	2	2
21	19	65.5%	174.80	158.10	169.80	1,690.00	—	—	—	—	—	—
115	2	65.2%	153.40	150.90	166.00	1,700.00	128.00	141.60	155.21	61.8%	1	10
3	1	64.9%	151.50	146.00	160.00	1,710.00	—	—	—	—	—	—
FIX $1,715.69
6	5	64.7%	155.00	141.70	154.00	1,720.00	140.60	153.90	170.00	62.5%	2	3
15	3	65.1%	153.40	134.10	146.00	1,740.00	150.00	165.00	162.33	62.1%	1	33
33	3	65.0%	134.00	125.20	137.90	1,760.00	162.40	173.10	168.70	61.6%	36	3
42	32	64.3%	121.04	106.90	121.50	1,800.00	184.30	199.20	188.80	61.4%	15	16
12	1	64.9%	110.20	101.80	114.80	1,820.00	—	—	—	—	—	—
12	3	64.2%	98.50	95.00	104.90	1,840.00	—	—	—	—	—	—
19	1	64.2%	93.06	88.40	98.30	1,860.00	222.00	235.60	266.50	60.2%	—	1
57	1	63.8%	83.00	75.90	85.40	1,900.00	—	—	—	—	—	—
14	12	63.7%	72.80	64.80	74.60	1,940.00	—	—	—	—	—	—
5	2	63.5%	65.15	59.40	69.40	1,960.00	—	—	—	—	—	—
52	3	63.5%	57.15	54.90	64.90	1,980.00	—	—	—	—	—	—
28	4	63.5%	55.17	51.00	60.50	2,000.00	—	—	—	—	—	—
8	1	63.1%	71.60	42.20	52.20	2,040.00	—	—	—	—	—	—
9	5	63.4%	45.30	39.20	49.20	2,060.00	—	—	—	—	—	—
59	43	62.9%	37.55	32.10	42.10	2,100.00	—	—	—	—	—	—
3	1	62.6%	33.30	23.80	33.80	2,160.00	—	—	—	—	—	—
4	2	62.5%	27.03	21.40	31.40	2,180.00	—	—	—	—	—	—
6	1	62.5%	24.30	19.30	29.30	2,200.00	—	—	—	—	—	—
0	—	62.5%	34.00	12.40	22.40	2,280.00	—	—	—	—	—	—
4	2	62.9%	30.61	11.40	21.40	2,300.00	—	—	—	—	—	—
1	1	62.8%	14.30	7.60	17.60	2,360.00	—	—	—	—	—	—
4	1	67.2%	14.00	9.80	19.00	2,400.00	—	—	—	—	—	—
3	1	63.2%	9.60	5.00	15.00	2,420.00	—	—	—	—	—	—
5	—	63.5%	7.10	2.90	12.90	2,480.00	—	—	—	—	—	—

In-the-money callsIn-the-money puts. IV = implied volatility, OI = open interest (contracts). Each contract covers 100 shares. Quotes delayed at least 15 minutes.

Frequently asked questions

What is the FIX put/call ratio?

For the November 20, 2026 expiration, the FIX put/call ratio based on open interest is 0.91 (779 puts vs 854 calls), and 1.74 based on today's volume. A ratio above 1 means more puts than calls.

What is FIX's implied volatility?

At-the-money implied volatility for FIX options expiring November 20, 2026 is about 63.6%, an annualized estimate of how much the market expects Comfort Systems USA stock to move.

How many FIX option expiration dates are there?

FIX has 9 listed expiration dates, from Oct 16, 2026 to Jan 19, 2029.

What does "in the money" mean?

A call is in the money when the strike price is below the current share price; a put is in the money when the strike is above it. In-the-money contracts have intrinsic value and are shaded in the table.