STMicroelectronics N.V. (STM) Options Chain

NYSE: STMTechnologySemiconductorsUSD

52.65-3.53 (-6.28%)

Market open · Delayed 15 min · as of Oct 8, 3:31 PM ET

Expiration date

Expiration: Oct 9, 2026
Days to expiration: 1
Share price: $52.61
Put/call ratio (OI): 0.15
Put/call ratio (volume): 0.08
ATM implied volatility: 64.9%
Expected move: ±$1.79
Open interest (C / P): 17.18K / 2.63K

STM options summary

The STM options chain for the October 9, 2026 expiration lists 21 call and 25 put contracts, with 1 day until expiration. Open interest stands at 17,175 calls and 2,632 puts, a put/call ratio of 0.15, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $53.00 strike is 64.9%, which implies the market expects a move of about ±$1.79 (3.4%) in STMicroelectronics N.V. stock by expiration.

The most open interest sits at the $58.00 call (8.20K contracts) and the $42.00 put (950 contracts).

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

STM options chain · October 9, 2026

STM 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
—	—	—	—	—	—	35.00	0.00	2.10	0.23	496.3%	2	0
—	—	—	—	—	—	39.00	0.00	0.95	0.15	311.3%	1	21
—	—	—	—	—	—	40.00	0.00	1.15	0.38	307.0%	—	2
—	—	—	—	—	—	41.00	0.00	0.95	0.20	270.7%	—	20
—	—	—	—	—	—	42.00	0.00	0.75	0.10	234.8%	950	950
—	—	—	—	—	—	44.00	0.00	0.75	0.45	197.3%	2	849
2	—	206.3%	7.67	7.10	9.30	45.00	0.00	0.75	0.14	178.7%	4	5
—	—	—	—	—	—	45.50	0.00	0.75	0.75	169.5%	—	3
18	2	185.9%	12.62	6.10	8.30	46.00	0.00	0.75	0.08	160.2%	5	25
9	4	165.6%	11.60	5.10	7.30	47.00	0.00	0.70	0.70	138.5%	35	36
2	1	145.1%	8.09	4.10	6.30	48.00	0.00	0.75	0.02	122.8%	2	17
3	1	134.8%	7.66	3.60	5.80	48.50	0.00	0.75	0.25	113.5%	—	1
14	12	124.4%	5.45	3.10	5.30	49.00	0.00	0.75	0.05	103.9%	1	127
—	—	—	—	—	—	49.50	0.00	0.10	0.05	52.3%	1	3
28	6	73.8%	2.85	2.25	3.50	50.00	0.00	0.30	0.11	60.9%	24	90
8	6	58.8%	6.10	1.35	2.50	51.00	0.00	1.95	0.05	108.4%	1	22
112	10	59.1%	1.05	0.85	1.25	52.00	0.30	0.50	0.40	49.6%	7	135
STM $52.61
97	66	50.0%	0.58	0.35	0.85	53.00	0.50	1.45	1.05	79.9%	20	32
59	68	51.7%	0.23	0.10	0.50	54.00	1.10	1.85	1.03	63.9%	40	50
105	32	60.2%	0.12	0.00	0.20	55.00	2.10	2.65	2.20	66.0%	27	102
81	49	52.7%	0.17	0.00	0.10	56.00	2.80	3.80	3.46	96.7%	10	37
210	2	74.8%	0.05	0.00	0.20	57.00	3.70	4.80	4.48	112.7%	49	78
8,197	7,468	67.2%	0.03	0.00	0.05	58.00	4.70	5.70	5.70	116.8%	36	23
378	14	76.6%	0.03	0.00	0.05	59.00	—	—	—	—	—	—
7,644	7,479	85.9%	0.08	0.00	0.05	60.00	5.90	7.80	10.71	155.9%	1	1
105	15	139.7%	0.28	0.00	0.40	61.00	—	—	—	—	—	—
48	1	203.5%	0.05	0.00	1.20	62.00	7.70	10.00	7.32	204.5%	2	3
29	22	146.5%	0.17	0.00	0.25	63.00	—	—	—	—	—	—
26	1	159.4%	0.05	0.00	0.20	65.00	—	—	—	—	—	—

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 STM put/call ratio?

For the October 9, 2026 expiration, the STM put/call ratio based on open interest is 0.15 (2,632 puts vs 17,175 calls), and 0.08 based on today's volume. A ratio above 1 means more puts than calls.

What is STM's implied volatility?

At-the-money implied volatility for STM options expiring October 9, 2026 is about 64.9%, an annualized estimate of how much the market expects STMicroelectronics N.V. stock to move.

How many STM option expiration dates are there?

STM has 12 listed expiration dates, from Oct 9, 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.