Thermo Fisher Scientific (TMO) Options Chain

NYSE: TMOIndustrialsIndustrial Machinery/ComponentsUSD

658.02+6.04 (+0.93%)

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

Expiration date

Expiration: Jan 21, 2028
Days to expiration: 468
Share price: $658.02
Put/call ratio (OI): 0.46
Put/call ratio (volume): 0.60
ATM implied volatility: 35.2%
Expected move: ±$261.94
Open interest (C / P): 2.95K / 1.36K

TMO options summary

The TMO options chain for the January 21, 2028 expiration lists 56 call and 46 put contracts, with 468 days until expiration. Open interest stands at 2,952 calls and 1,361 puts, a put/call ratio of 0.46, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $660.00 strike is 35.2%, which implies the market expects a move of about ±$261.94 (39.8%) in Thermo Fisher Scientific stock by expiration.

The most open interest sits at the $550.00 call (913 contracts) and the $550.00 put (198 contracts).

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

TMO options chain · January 21, 2028

TMO 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
0	—	—	378.00	0.00	0.00	230.00	0.00	6.50	3.48	51.9%	1	6
28	2	—	351.00	397.00	407.00	240.00	0.00	6.20	3.10	56.8%	1	10
23	1	—	334.00	372.00	382.00	250.00	4.80	7.10	6.91	54.3%	1	6
1	1	—	232.70	282.00	290.10	260.00	0.05	2.55	2.14	44.3%	2	5
—	—	—	—	—	—	270.00	1.50	8.90	5.16	55.3%	1	5
—	—	—	—	—	—	280.00	1.15	3.30	2.47	43.0%	1	8
—	—	—	—	—	—	290.00	1.50	6.50	3.21	47.7%	1	31
0	1	—	321.73	0.00	0.00	300.00	0.80	9.00	7.40	49.6%	1	10
—	—	—	—	—	—	310.00	0.85	4.50	5.40	40.9%	2	15
1	1	59.2%	360.01	355.00	364.00	320.00	1.35	7.50	4.80	44.1%	2	7
—	—	—	—	—	—	330.00	1.00	8.80	13.45	44.2%	1	3
0	1	—	221.00	309.00	318.00	340.00	0.00	0.00	18.69	12.5%	1	0
5	1	56.1%	328.80	329.00	337.00	350.00	2.20	7.40	5.00	39.3%	1	83
0	1	—	256.50	0.00	0.00	360.00	5.00	8.20	5.60	38.8%	1	27
8	1	33.1%	175.05	284.00	293.00	370.00	5.80	9.20	7.20	38.5%	1	9
4	2	—	143.55	228.00	237.00	380.00	6.70	10.50	6.80	38.3%	1	144
—	—	—	—	—	—	390.00	14.00	24.00	33.62	47.9%	1	25
36	5	51.5%	291.05	286.00	294.10	400.00	5.50	14.00	9.30	38.5%	2	89
2	1	—	116.23	124.00	131.00	410.00	10.00	18.00	26.75	40.2%	1	66
4	1	50.6%	245.30	270.00	279.00	420.00	9.50	16.30	12.00	37.4%	2	87
2	4	—	124.45	159.00	168.00	430.00	13.00	21.00	32.00	39.2%	1	53
5	1	35.6%	130.38	227.00	236.00	440.00	14.00	17.50	15.90	35.3%	18	117
0	1	—	180.50	0.00	0.00	450.00	12.00	22.00	15.00	36.8%	1	61
11	1	49.5%	240.00	238.00	246.00	460.00	14.00	24.00	16.35	36.5%	2	99
26	1	49.2%	193.56	230.00	239.00	470.00	0.00	0.00	25.15	6.3%	1	0
6	1	48.3%	222.50	223.20	231.00	480.00	23.80	33.00	37.90	38.4%	1	15
0	1	—	164.07	0.00	0.00	490.00	21.70	26.30	23.60	33.3%	3	14
204	11	47.0%	234.50	208.00	216.00	500.00	22.00	30.20	25.50	33.8%	1	37
11	2	35.1%	102.00	177.00	184.00	510.00	25.50	31.20	26.90	32.8%	1	9
37	1	46.0%	201.02	194.70	202.00	520.00	27.00	36.00	31.10	33.5%	8	23
6	14	45.4%	179.66	187.70	195.00	530.00	0.00	0.00	43.43	3.1%	1	0
65	1	45.3%	176.25	180.00	189.00	540.00	32.00	42.00	33.20	33.1%	11	23
913	1	45.0%	175.25	174.00	183.00	550.00	35.00	45.00	38.88	32.8%	100	198
14	1	35.2%	118.78	145.00	153.00	560.00	40.10	46.00	55.30	31.6%	3	6
18	1	43.7%	138.20	161.00	169.00	570.00	44.30	49.00	59.20	31.2%	2	11
49	4	43.0%	143.50	156.00	162.00	580.00	45.00	55.00	48.15	31.9%	1	10
32	33	42.6%	164.00	150.00	156.00	590.00	0.00	0.00	74.40	1.6%	1	0
70	1	42.5%	154.00	144.00	151.00	600.00	55.50	60.00	54.70	30.4%	5	8
10	3	42.8%	149.85	138.00	147.00	610.00	57.00	66.00	52.70	30.9%	1	6
43	6	41.6%	148.00	133.00	139.00	620.00	61.00	70.00	63.90	30.5%	7	11
123	2	41.1%	122.00	127.00	133.30	630.00	65.00	75.00	68.66	30.5%	3	5
0	1	—	89.80	0.00	0.00	640.00	—	—	—	—	—	—
43	1	40.9%	117.00	117.00	124.00	650.00	76.20	82.00	95.00	29.2%	—	2
TMO $658.02
124	1	41.3%	117.54	112.00	121.00	660.00	81.40	87.00	72.99	29.0%	2	5
51	3	40.3%	113.50	107.00	114.00	670.00	—	—	—	—	—	—
45	1	39.9%	102.87	102.00	109.10	680.00	—	—	—	—	—	—
111	1	39.6%	112.31	98.00	104.30	690.00	—	—	—	—	—	—
297	1	39.7%	96.50	93.00	101.00	700.00	102.20	108.00	88.65	27.9%	4	4
19	1	39.2%	92.78	89.00	96.00	710.00	—	—	—	—	—	—
37	31	39.0%	63.38	85.00	92.00	720.00	—	—	110.76	—	—	—
73	4	39.5%	78.00	77.00	87.00	740.00	125.00	134.00	126.60	27.7%	—	8
46	1	39.2%	73.90	70.00	80.00	760.00	—	—	—	—	—	—
9	1	38.0%	67.71	65.50	71.00	780.00	—	—	—	—	—	—
14	3	37.7%	61.12	58.00	64.80	800.00	—	—	—	—	—	—
135	50	37.4%	62.73	52.00	59.10	820.00	—	—	—	—	—	—
104	100	37.5%	52.87	47.00	55.00	840.00	—	—	—	—	—	—
10	3	38.0%	47.00	42.00	52.00	860.00	—	—	—	—	—	—
8	7	37.1%	43.10	38.00	46.00	880.00	—	—	—	—	—	—
5	5	36.7%	39.89	34.40	41.20	900.00	—	—	—	—	—	—
37	8	36.5%	35.60	32.50	37.60	920.00	—	—	—	—	—	—
2	2	36.5%	20.90	28.00	34.60	940.00	—	—	—	—	—	—
25	1	37.6%	22.00	25.00	34.50	960.00	—	—	—	—	—	—

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 TMO put/call ratio?

For the January 21, 2028 expiration, the TMO put/call ratio based on open interest is 0.46 (1,361 puts vs 2,952 calls), and 0.60 based on today's volume. A ratio above 1 means more puts than calls.

What is TMO's implied volatility?

At-the-money implied volatility for TMO options expiring January 21, 2028 is about 35.2%, an annualized estimate of how much the market expects Thermo Fisher Scientific stock to move.

How many TMO option expiration dates are there?

TMO has 14 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.