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: Oct 30, 2026
Days to expiration: 19
Share price: $658.02
Put/call ratio (OI): 7.99
Put/call ratio (volume): 12.21
ATM implied volatility: 48.4%
Expected move: ±$72.71
Open interest (C / P): 362 / 2.89K

TMO options summary

The TMO options chain for the October 30, 2026 expiration lists 19 call and 17 put contracts, with 19 days until expiration. Open interest stands at 362 calls and 2,891 puts, a put/call ratio of 7.99, which is more bearish, with puts outnumbering calls. At-the-money implied volatility near the $660.00 strike is 48.4%, which implies the market expects a move of about ±$72.71 (11.0%) in Thermo Fisher Scientific stock by expiration.

The most open interest sits at the $700.00 call (124 contracts) and the $570.00 put (1.58K contracts).

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

TMO options chain · October 30, 2026

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
—	—	—	—	—	—	500.00	0.00	4.90	1.30	74.4%	—	4
—	—	—	—	—	—	520.00	0.00	4.90	0.01	65.7%	2	3
—	—	—	—	—	—	530.00	0.05	4.00	4.32	58.9%	1	1
—	—	—	—	—	—	540.00	0.05	7.40	2.65	63.3%	1	2
30	—	53.0%	96.66	106.30	114.70	550.00	1.00	7.50	2.45	60.9%	1	4
—	—	—	—	—	—	560.00	0.05	7.80	3.30	55.0%	1,200	1,200
—	—	—	—	—	—	570.00	0.05	8.20	2.80	51.2%	1,580	1,581
—	—	—	—	—	—	580.00	0.70	8.60	4.31	59.7%	1	11
—	—	—	—	—	—	590.00	1.80	9.20	6.59	55.9%	1	10
63	200	54.9%	61.87	61.90	69.20	600.00	5.10	7.60	6.15	46.6%	2	6
—	—	—	—	—	—	610.00	5.70	12.40	8.19	51.8%	11	18
—	—	—	—	—	—	620.00	6.90	14.50	10.00	49.9%	1	12
—	—	—	—	—	—	630.00	9.70	17.50	17.00	48.9%	2	21
15	5	48.9%	37.96	34.90	39.50	640.00	13.60	20.30	17.50	46.9%	4	10
5	1	49.0%	34.59	28.90	34.10	650.00	19.00	25.30	31.09	47.7%	1	5
TMO $658.02
9	6	49.1%	39.10	20.80	29.20	660.00	23.00	30.40	31.51	47.8%	1	0
25	1	47.6%	15.97	18.70	23.90	670.00	27.00	35.60	22.55	47.1%	—	3
9	6	48.6%	25.30	14.20	20.60	680.00	—	—	—	—	—	—
5	1	43.3%	12.85	12.30	14.20	690.00	—	—	—	—	—	—
124	1	48.1%	8.55	6.40	14.00	700.00	—	—	—	—	—	—
30	1	47.0%	8.20	4.00	10.90	710.00	—	—	—	—	—	—
11	1	49.5%	5.73	2.90	10.00	720.00	—	—	—	—	—	—
8	1	51.7%	7.07	1.30	9.10	730.00	—	—	—	—	—	—
10	1	54.3%	4.67	0.60	8.50	740.00	—	—	—	—	—	—
7	1	57.5%	3.80	0.05	8.30	750.00	—	—	—	—	—	—
1	—	60.1%	5.00	0.05	7.90	760.00	—	—	—	—	—	—
4	1	51.7%	3.10	0.05	7.80	770.00	—	—	—	—	—	—
2	1	54.1%	3.10	0.05	7.50	780.00	—	—	—	—	—	—
2	1	51.5%	2.50	0.00	4.90	790.00	—	—	—	—	—	—
2	1	54.2%	2.00	0.00	4.90	800.00	—	—	—	—	—	—

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 October 30, 2026 expiration, the TMO put/call ratio based on open interest is 7.99 (2,891 puts vs 362 calls), and 12.21 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 October 30, 2026 is about 48.4%, 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.