Comfort Systems USA (FIX) Options Chain

NYSE: FIXIndustrialsEngineering & ConstructionUSD

1,715.74+9.35 (+0.55%)

Market open · Delayed 15 min · as of Oct 9, 3:19 PM ET

Expiration date

Expiration: Oct 16, 2026
Days to expiration: 7
Share price: $1,716.28
Put/call ratio (OI): 1.54
Put/call ratio (volume): 0.75
ATM implied volatility: 50.5%
Expected move: ±$119.96
Open interest (C / P): 3.06K / 4.72K

FIX options summary

The FIX options chain for the October 16, 2026 expiration lists 104 call and 105 put contracts, with 7 days until expiration. Open interest stands at 3,058 calls and 4,724 puts, a put/call ratio of 1.54, which is more bearish, with puts outnumbering calls. At-the-money implied volatility near the $1,720.00 strike is 50.5%, which implies the market expects a move of about ±$119.96 (7.0%) in Comfort Systems USA stock by expiration.

The most open interest sits at the $1,680.00 call (261 contracts) and the $1,460.00 put (469 contracts).

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

FIX options chain · October 16, 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
1	1	—	1,350.10	925.50	943.90	680.00	0.00	0.10	0.07	193.4%	5	34
0	—	—	1,085.50	0.00	0.00	700.00	0.00	4.90	0.65	280.5%	1	27
0	—	—	748.60	0.00	0.00	720.00	0.00	4.90	0.10	272.3%	1	6
1	—	—	1,292.10	866.10	884.00	740.00	0.00	4.90	0.65	264.4%	3	23
—	—	—	—	—	—	760.00	0.00	4.90	1.00	256.7%	1	5
0	—	—	1,137.70	0.00	0.00	780.00	0.10	10.10	6.22	279.3%	1	3
0	—	—	1,089.40	0.00	0.00	800.00	0.00	4.90	0.10	241.8%	1	11
0	—	—	655.70	0.00	0.00	820.00	0.00	0.20	0.06	164.8%	1	9
1	1	—	962.00	767.60	785.50	840.00	0.00	4.90	1.80	227.7%	1	58
—	—	—	—	—	—	860.00	0.00	4.90	2.48	220.8%	1	1
1	1	—	887.40	727.70	745.80	880.00	0.00	10.00	6.70	239.8%	3	4
0	—	—	643.20	0.00	0.00	900.00	0.00	0.00	2.25	50.0%	1	0
—	—	—	—	—	—	920.00	0.00	4.90	0.30	201.3%	1	0
1	1	366.7%	846.90	814.00	829.30	940.00	0.00	4.90	0.50	195.0%	1	3
1	—	362.0%	829.40	795.90	811.80	960.00	0.00	4.90	1.60	188.9%	2	15
2	1	—	866.00	630.00	648.10	980.00	0.00	4.90	0.50	182.9%	1	7
2	1	—	753.93	610.20	628.50	1,000.00	0.00	4.90	0.04	177.0%	5	52
2	1	187.2%	606.00	691.90	709.20	1,020.00	0.00	4.90	0.90	171.2%	2	7
—	—	—	—	—	—	1,040.00	0.00	4.90	0.50	165.5%	1	6
0	1	—	871.60	0.00	0.00	1,060.00	0.00	0.10	0.50	103.9%	1	3
1	1	169.2%	637.32	632.00	649.10	1,080.00	0.00	4.90	1.40	154.4%	2	6
1	—	—	610.00	512.00	529.10	1,100.00	0.00	4.90	0.50	149.0%	4	37
2	2	734.9%	598.94	916.00	932.40	1,120.00	0.00	4.90	3.79	143.7%	1	3
—	—	—	—	—	—	1,140.00	0.00	4.90	4.70	138.4%	1	6
—	—	—	—	—	—	1,160.00	0.00	4.90	4.90	133.3%	1	6
8	1	141.8%	452.00	532.20	549.20	1,180.00	0.00	0.50	0.36	95.5%	3	26
7	1	136.7%	410.61	512.20	529.30	1,200.00	0.00	4.90	0.10	123.2%	1	88
4	2	—	521.88	398.00	415.30	1,220.00	0.00	4.90	2.43	118.2%	5	5
0	—	—	306.80	0.00	0.00	1,230.00	0.00	4.90	2.47	115.8%	5	46
11	10	—	720.20	388.40	405.60	1,240.00	0.00	4.90	2.45	113.3%	2	20
—	—	—	—	—	—	1,250.00	0.00	4.30	2.48	108.6%	1	62
1	—	119.5%	346.90	451.50	469.50	1,260.00	0.30	4.90	0.26	109.6%	3	18
0	—	—	686.06	0.00	0.00	1,270.00	0.10	4.90	2.45	106.5%	1	27
1	—	109.9%	328.00	431.30	448.10	1,280.00	0.00	4.90	2.45	103.8%	1	16
2	6	—	580.85	346.00	364.70	1,290.00	0.00	4.90	2.31	101.4%	2	5
31	1	112.3%	440.90	412.60	429.70	1,300.00	0.00	4.90	1.90	99.0%	10	42
0	1	107.0%	329.00	401.70	419.40	1,310.00	0.00	4.90	2.28	96.7%	2	48
1	1	105.6%	356.54	391.80	409.80	1,320.00	0.00	4.90	1.50	94.4%	1	9
0	1	—	580.00	0.00	0.00	1,330.00	0.00	4.90	4.74	92.1%	1	24
3	2	107.3%	288.78	373.40	391.50	1,340.00	0.00	4.50	0.70	88.5%	2	89
4	2	100.8%	367.60	362.90	380.00	1,350.00	0.00	3.10	0.45	81.1%	11	99
2	2	98.5%	261.15	353.00	370.00	1,360.00	0.20	4.90	1.02	85.8%	2	18
1	1	95.8%	296.50	343.20	359.70	1,370.00	0.00	4.90	1.50	82.9%	2	6
7	6	98.3%	260.80	335.70	350.00	1,380.00	0.25	3.90	0.80	78.3%	2	34
9	7	94.7%	408.67	325.10	340.00	1,390.00	0.00	1.90	2.25	67.3%	10	80
19	2	92.3%	327.98	315.20	330.00	1,400.00	0.50	1.85	1.10	67.4%	8	208
30	7	85.7%	388.97	303.70	319.20	1,410.00	0.00	4.90	2.43	73.9%	1	66
0	1	—	344.60	0.00	0.00	1,420.00	0.00	4.90	0.70	71.7%	8	101
9	2	85.8%	307.20	285.00	301.00	1,430.00	0.50	4.90	2.70	70.7%	1	110
10	1	85.3%	210.00	275.40	292.00	1,440.00	0.05	4.90	1.60	67.4%	1	173
7	2	77.5%	280.00	263.90	280.00	1,450.00	0.10	6.70	4.85	69.3%	2	189
11	2	80.8%	195.75	256.00	272.00	1,460.00	0.20	8.10	3.70	69.9%	17	469
16	1	73.7%	258.10	243.80	260.90	1,470.00	0.05	10.00	3.50	70.5%	2	125
1	2	79.8%	159.85	238.30	253.10	1,480.00	0.90	9.90	2.50	69.2%	1	147
5	1	72.7%	173.24	225.80	242.00	1,490.00	0.75	8.00	1.95	63.5%	5	13
103	2	74.4%	232.40	219.50	232.00	1,500.00	0.45	5.10	3.44	55.4%	4	132
8	1	70.0%	210.05	198.40	214.00	1,520.00	2.70	5.30	3.55	55.2%	17	111
27	1	66.1%	191.13	180.10	194.00	1,540.00	2.80	11.90	6.00	59.1%	1	157
34	1	65.6%	165.08	162.00	177.90	1,560.00	5.00	9.90	7.70	54.1%	4	299
73	31	60.3%	107.00	142.60	158.00	1,580.00	5.20	12.70	10.27	51.6%	5	55
34	16	60.4%	130.20	127.10	142.00	1,600.00	8.10	14.00	11.67	54.2%	10	127
107	15	57.1%	114.30	110.00	124.00	1,620.00	10.90	17.80	13.58	53.3%	6	85
85	2	54.8%	88.40	95.90	105.60	1,640.00	17.00	20.80	21.18	50.4%	14	72
40	1	53.4%	87.90	81.00	91.00	1,660.00	22.20	26.30	23.00	49.6%	7	151
261	1	54.4%	65.00	69.60	79.50	1,680.00	24.60	34.60	32.13	50.5%	1	93
120	20	52.8%	65.64	56.80	66.80	1,700.00	35.30	40.60	54.67	47.9%	47	56
FIX $1,716.28
47	3	52.8%	47.00	46.90	56.60	1,720.00	45.00	50.70	45.20	48.1%	3	127
134	21	51.9%	35.10	36.90	46.90	1,740.00	49.80	59.80	68.96	46.0%	1	88
34	1	51.0%	34.94	28.40	38.40	1,760.00	62.00	71.90	111.66	45.6%	4	32
77	27	52.8%	20.66	22.10	28.50	1,780.00	76.60	86.60	97.16	46.7%	1	84
126	4	55.1%	19.26	15.50	24.80	1,800.00	89.10	99.00	135.71	43.7%	1	96
45	3	54.3%	14.04	10.10	19.30	1,820.00	104.00	118.20	131.90	48.1%	8	112
59	35	49.9%	12.45	7.10	12.20	1,840.00	120.00	134.60	146.00	47.9%	8	49
72	9	51.8%	7.95	5.50	10.40	1,860.00	138.00	152.80	85.70	49.6%	2	14
152	2	52.7%	7.37	3.40	13.40	1,880.00	156.00	171.30	264.29	51.2%	2	3
173	3	54.9%	3.89	2.60	7.40	1,900.00	174.10	188.80	245.20	49.7%	1	8
65	1	52.1%	7.01	2.10	7.00	1,920.00	193.10	208.50	318.50	52.7%	5	11
139	1	59.8%	2.25	1.15	11.10	1,940.00	214.20	230.30	390.00	60.9%	1	12
40	1	54.6%	4.83	0.00	3.10	1,960.00	0.00	0.00	221.10	—	1	0
48	15	64.9%	3.87	0.55	10.10	1,980.00	0.00	0.00	385.30	—	1	0
159	24	56.7%	1.26	0.70	3.50	2,000.00	273.00	290.00	299.20	70.9%	4	24
43	6	61.4%	5.02	0.00	4.90	2,020.00	421.10	440.00	315.40	228.1%	1	4
15	4	64.3%	3.96	0.00	4.90	2,040.00	439.40	458.00	327.00	231.4%	1	6
13	1	67.2%	1.01	0.00	4.90	2,060.00	331.10	349.10	405.00	78.3%	5	5
11	2	70.1%	2.70	0.00	4.90	2,080.00	392.50	408.00	356.30	139.0%	2	3
38	1	72.9%	1.00	0.00	4.90	2,100.00	372.00	386.60	510.00	75.0%	1	0
41	1	75.7%	1.85	0.00	4.90	2,120.00	504.80	523.10	593.78	235.6%	1	3
18	4	78.4%	1.52	0.00	4.90	2,140.00	411.90	428.20	493.60	87.5%	1	0
24	4	81.1%	1.61	0.00	4.90	2,160.00	0.00	0.00	453.69	—	—	0
22	8	83.7%	1.65	0.00	4.90	2,180.00	462.80	478.00	417.30	100.9%	1	1
75	19	86.3%	1.37	0.00	4.90	2,200.00	587.80	606.00	610.25	256.9%	2	2
14	28	88.9%	1.30	0.00	4.90	2,220.00	—	—	—	—	—	—
7	2	91.4%	1.07	0.00	4.90	2,240.00	578.10	592.00	605.10	204.4%	—	1
17	1	93.9%	0.40	0.00	4.90	2,260.00	647.10	663.90	546.30	268.2%	1	2
41	2	96.4%	1.10	0.00	4.90	2,280.00	666.50	682.00	562.20	270.9%	1	1
14	9	96.8%	3.17	0.00	4.30	2,300.00	0.00	0.00	622.00	—	2	0
6	2	101.2%	2.20	0.00	4.90	2,320.00	643.50	658.00	514.10	199.7%	—	1
4	1	103.5%	0.05	0.00	4.90	2,340.00	0.00	0.00	624.00	—	—	0
18	2	105.9%	1.80	0.00	4.90	2,360.00	740.10	758.00	826.00	280.8%	—	0
10	2	108.2%	1.21	0.00	4.90	2,380.00	—	—	—	—	—	—
16	1	78.0%	0.05	0.00	0.25	2,400.00	780.00	798.00	864.00	288.2%	—	0
4	2	112.7%	6.50	0.00	4.90	2,420.00	802.30	820.00	642.80	294.4%	1	2
4	1	114.9%	1.00	0.00	4.90	2,440.00	820.00	838.00	902.00	295.5%	—	0
16	1	117.1%	9.50	0.00	4.90	2,460.00	0.00	0.00	738.00	—	—	0
2	1	119.3%	1.55	0.00	4.90	2,480.00	859.60	877.90	940.00	302.2%	—	0
28	1	121.4%	3.82	0.00	4.90	2,500.00	—	—	—	—	—	—
18	1	131.8%	0.05	0.00	4.90	2,600.00	—	—	—	—	—	—
14	2	141.6%	5.06	0.00	4.90	2,700.00	—	—	—	—	—	—
28	18	150.9%	0.10	0.00	4.90	2,800.00	1,179.60	1,197.90	1,254.00	352.7%	—	0
5	1	159.9%	4.99	0.00	4.90	2,900.00	—	—	—	—	—	—
14	3	168.4%	0.82	0.00	4.90	3,000.00	1,381.20	1,399.80	1,199.60	382.0%	1	0

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 October 16, 2026 expiration, the FIX put/call ratio based on open interest is 1.54 (4,724 puts vs 3,058 calls), and 0.75 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 October 16, 2026 is about 50.5%, 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.