ON Semiconductor (ON) Options Chain

NASDAQ: ONTechnologySemiconductorsUSD

77.68-1.73 (-2.18%)

Market open · Delayed 15 min · as of Oct 9, 3:31 PM ET

Expiration date

Expiration: Oct 9, 2026
Days to expiration: 0
Share price: $77.70
Put/call ratio (OI): 0.93
Put/call ratio (volume): 0.23
ATM implied volatility: 37.1%
Expected move: ±$1.51
Open interest (C / P): 5.56K / 5.16K

ON options summary

The ON options chain for the October 9, 2026 expiration lists 40 call and 42 put contracts, expiring today. Open interest stands at 5,557 calls and 5,163 puts, a put/call ratio of 0.93, which is fairly balanced between calls and puts. At-the-money implied volatility near the $78.00 strike is 37.1%, which implies the market expects a move of about ±$1.51 (1.9%) in ON Semiconductor stock by expiration.

The most open interest sits at the $80.00 call (1.24K contracts) and the $79.00 put (808 contracts).

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

ON options chain · October 9, 2026

ON 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
—	—	—	—	—	—	45.00	0.00	2.13	0.34	793.0%	2	8
10	2	480.5%	29.91	25.60	27.95	50.00	0.00	2.13	0.61	667.6%	1	9
—	—	—	—	—	—	55.00	0.00	2.13	0.04	552.5%	2	21
15	1	323.4%	18.43	16.60	18.95	59.00	0.00	2.13	0.01	466.0%	1	24
14	16	307.0%	19.20	15.60	17.95	60.00	0.00	0.01	0.01	175.0%	2	643
—	—	—	18.17	—	—	61.00	0.00	2.13	0.06	424.0%	6	15
—	—	—	17.17	—	—	62.00	0.00	0.53	0.36	278.5%	1	74
16	13	50.0%	16.65	12.55	14.70	63.00	0.00	0.01	0.03	143.8%	3	73
31	1	181.3%	12.65	11.55	13.75	64.00	0.00	0.05	0.02	164.1%	1	62
40	1	216.8%	11.72	10.55	12.90	65.00	0.00	2.13	0.01	342.2%	1	30
30	13	201.9%	11.18	9.55	11.90	66.00	0.00	2.13	0.01	321.9%	86	104
124	13	196.9%	10.26	8.60	10.95	67.00	0.00	2.13	0.02	301.8%	43	170
115	46	181.3%	11.94	7.55	9.95	68.00	0.00	0.05	0.02	118.8%	3	312
19	3	147.3%	7.90	6.55	8.85	69.00	0.00	0.06	0.02	109.4%	27	116
141	7	150.4%	6.98	5.60	7.95	70.00	0.00	2.13	0.04	241.0%	8	196
35	16	118.4%	6.29	4.60	6.85	71.00	0.00	0.05	0.05	84.4%	1	178
26	16	112.1%	5.30	3.50	5.90	72.00	0.00	0.30	0.02	104.1%	16	60
34	13	—	5.00	2.60	4.65	73.00	0.00	0.29	0.04	88.7%	4	18
19	3	—	2.85	2.43	3.60	74.00	0.00	0.01	0.01	43.8%	18	471
52	24	—	1.90	1.50	2.56	75.00	0.00	0.07	0.06	48.0%	59	272
82	63	—	1.00	1.15	1.64	76.00	0.01	0.05	0.03	31.1%	41	353
210	52	—	0.40	0.09	0.57	77.00	0.08	0.16	0.08	26.0%	90	72
ON $77.70
120	546	11.9%	0.06	0.06	0.08	78.00	0.39	1.17	1.50	62.3%	25	164
59	56	28.7%	0.04	0.00	0.08	79.00	1.48	2.01	1.90	58.6%	25	808
1,236	1,466	28.1%	0.01	0.00	0.01	80.00	2.53	2.95	2.95	77.3%	43	227
92	195	42.2%	0.03	0.00	0.02	81.00	3.25	4.20	4.02	93.4%	51	97
76	167	46.9%	0.01	0.00	0.01	82.00	4.35	4.80	5.02	94.3%	61	247
245	1	87.1%	0.15	0.00	0.24	83.00	5.35	6.85	6.58	157.9%	15	106
224	20	73.4%	0.03	0.00	0.05	84.00	6.50	7.50	7.08	165.2%	6	157
305	20	73.4%	0.01	0.00	0.02	85.00	7.20	9.50	8.57	210.7%	3	25
314	2	75.0%	0.03	0.00	0.01	86.00	8.25	9.95	3.90	204.3%	12	0
467	22	112.5%	0.01	0.00	0.10	87.00	9.40	11.30	8.15	241.2%	1	0
131	5	106.3%	0.02	0.00	0.04	88.00	10.05	12.50	9.10	248.8%	1	0
211	2	96.9%	0.18	0.00	0.01	89.00	11.35	13.25	12.51	265.0%	1	0
529	8	106.3%	0.01	0.00	0.01	90.00	12.25	14.15	13.43	268.9%	13	51
—	—	—	0.13	—	—	91.00	—	—	6.41	—	—	—
—	—	—	0.04	—	—	92.00	—	—	13.30	—	—	—
—	—	—	0.03	—	—	93.00	—	—	12.63	—	—	—
442	60	137.5%	0.01	0.00	0.01	95.00	17.05	19.65	23.11	346.7%	—	0
75	10	404.9%	0.01	0.00	2.13	100.00	22.05	24.60	13.45	400.4%	1	0
16	2	456.6%	0.01	0.00	2.13	105.00	—	—	19.71	—	—	—
2	2	426.9%	0.07	0.00	1.06	110.00	32.05	34.65	42.75	502.3%	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 ON put/call ratio?

For the October 9, 2026 expiration, the ON put/call ratio based on open interest is 0.93 (5,163 puts vs 5,557 calls), and 0.23 based on today's volume. A ratio above 1 means more puts than calls.

What is ON's implied volatility?

At-the-money implied volatility for ON options expiring October 9, 2026 is about 37.1%, an annualized estimate of how much the market expects ON Semiconductor stock to move.

How many ON option expiration dates are there?

ON has 19 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.