Arm (ARM) Options Chain

NASDAQ: ARMTechnologySemiconductorsUSD

275.29-19.08 (-6.48%)

At close: Oct 8, 4:00 PM ET · Delayed 15 min

Expiration date

Expiration: Oct 9, 2026
Days to expiration: 1
Share price: $275.29
Put/call ratio (OI): 0.51
Put/call ratio (volume): 0.56
ATM implied volatility: 73.1%
Expected move: ±$10.53
Open interest (C / P): 35.76K / 18.34K

ARM options summary

The ARM options chain for the October 9, 2026 expiration lists 92 call and 70 put contracts, with 1 day until expiration. Open interest stands at 35,755 calls and 18,338 puts, a put/call ratio of 0.51, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $275.00 strike is 73.1%, which implies the market expects a move of about ±$10.53 (3.8%) in Arm stock by expiration.

The most open interest sits at the $325.00 call (3.33K contracts) and the $295.00 put (1.13K contracts).

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

ARM options chain · October 9, 2026

ARM 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
—	—	—	—	—	—	140.00	0.00	0.01	0.01	387.5%	10	38
—	—	—	—	—	—	145.00	0.00	4.30	0.03	792.2%	22	176
37	4	500.8%	131.02	124.10	126.85	150.00	0.00	0.03	0.04	384.4%	1	51
115	11	664.5%	118.50	118.80	121.75	155.00	0.00	0.01	0.01	337.5%	2	198
95	25	411.7%	121.35	113.60	117.15	160.00	0.00	0.01	0.01	312.5%	1	31
—	—	—	—	—	—	165.00	0.00	0.01	0.01	300.0%	8	152
6	2	459.6%	110.18	104.10	107.35	170.00	0.00	0.10	0.06	348.4%	14	61
4	5	450.0%	98.04	99.85	101.80	175.00	0.00	3.50	0.66	564.6%	5	109
5	4	399.2%	100.44	94.10	97.20	180.00	0.00	0.01	0.01	250.0%	30	140
8	4	319.5%	95.29	88.90	91.90	185.00	0.00	0.01	0.01	237.5%	15	181
—	—	—	—	—	—	190.00	0.00	0.07	0.01	264.1%	1	147
2	4	325.0%	109.97	79.10	82.10	195.00	0.00	0.10	0.01	256.3%	358	144
5	5	229.7%	98.00	73.90	76.75	200.00	0.00	0.01	0.03	193.8%	78	181
10	10	299.8%	62.20	69.65	71.80	205.00	0.00	0.02	0.04	190.6%	6	243
1	1	281.6%	87.67	64.10	67.40	210.00	0.00	0.01	0.01	162.5%	9	437
1	1	193.8%	93.88	58.90	61.80	215.00	0.00	0.10	0.01	189.8%	21	495
—	—	—	—	—	—	220.00	0.00	0.01	0.01	137.5%	5	417
8	12	188.7%	72.32	48.90	52.05	225.00	0.00	0.10	0.01	157.8%	2	322
4	12	205.5%	69.84	46.65	49.75	227.50	0.00	0.27	0.22	171.5%	13	56
4	2	185.9%	87.24	44.15	47.05	230.00	0.00	0.01	0.01	112.5%	5	166
—	—	—	—	—	—	232.50	0.00	0.09	0.01	133.6%	20	8
7	1	187.3%	59.60	39.90	41.80	235.00	0.00	0.08	0.02	124.2%	60	486
1	—	177.2%	61.99	37.40	39.30	237.50	0.00	0.12	0.01	122.7%	20	9
70	4	170.1%	34.00	34.90	36.90	240.00	0.00	0.14	0.06	117.2%	41	392
—	—	—	—	—	—	242.50	0.02	0.09	0.03	106.3%	40	32
37	7	162.3%	53.38	29.70	32.60	245.00	0.03	0.16	0.03	106.3%	112	328
—	—	—	—	—	—	247.50	0.00	0.10	0.06	89.8%	38	247
59	4	103.1%	23.60	24.00	27.00	250.00	0.00	0.20	0.09	91.0%	587	468
8	3	103.4%	19.39	21.70	24.55	252.50	0.01	0.12	0.13	77.7%	124	81
47	4	85.3%	17.50	19.00	22.00	255.00	0.09	0.16	0.13	77.7%	394	291
2	1	87.1%	32.50	16.80	19.55	257.50	0.16	0.25	0.30	76.2%	145	100
57	33	96.1%	13.05	14.85	17.45	260.00	0.32	0.36	0.33	75.0%	381	606
21	7	82.2%	11.80	13.20	13.95	262.50	0.53	0.57	0.54	73.9%	267	88
88	31	78.5%	10.75	11.05	11.65	265.00	0.83	0.91	0.87	73.1%	1,330	534
11	65	77.7%	8.15	9.10	9.60	267.50	1.29	1.40	1.21	72.7%	557	453
215	384	77.0%	7.65	7.30	7.75	270.00	1.91	2.07	1.91	72.1%	1,486	958
44	168	75.8%	6.10	5.65	6.10	272.50	2.75	2.97	2.68	71.8%	764	447
94	863	75.8%	4.65	4.35	4.65	275.00	3.70	4.10	4.80	70.4%	901	429
ARM $275.29
14	479	75.7%	3.55	3.20	3.50	277.50	5.20	5.55	5.00	72.4%	928	316
128	2,860	76.1%	2.51	2.40	2.50	280.00	6.60	7.20	6.80	71.1%	1,539	966
141	705	76.7%	1.74	1.70	1.81	282.50	8.55	9.10	10.22	73.7%	353	363
1,663	1,015	76.8%	1.21	1.17	1.25	285.00	10.40	10.95	12.56	70.5%	460	862
37	821	77.9%	0.83	0.81	0.88	287.50	12.40	13.25	14.80	70.6%	136	325
377	2,900	78.6%	0.61	0.54	0.60	290.00	14.10	15.75	15.90	62.3%	261	923
45	183	79.7%	0.34	0.36	0.41	292.50	16.30	18.10	19.51	99.5%	55	382
323	1,601	81.3%	0.28	0.25	0.28	295.00	19.05	20.40	22.20	52.3%	60	1,128
389	217	82.6%	0.18	0.15	0.21	297.50	20.65	23.00	24.45	114.5%	120	321
1,083	2,498	86.1%	0.14	0.05	0.23	300.00	23.40	26.25	25.25	83.4%	252	694
334	236	88.7%	0.11	0.02	0.19	302.50	25.80	28.65	28.00	68.8%	45	269
621	865	94.5%	0.02	0.02	0.18	305.00	29.05	31.25	29.48	122.8%	44	128
836	225	90.6%	0.04	0.01	0.08	307.50	30.80	33.60	34.22	172.3%	9	133
1,643	2,790	94.5%	0.04	0.03	0.05	310.00	33.30	36.25	37.17	100.8%	39	296
326	240	105.5%	0.13	0.00	0.12	312.50	35.85	38.05	37.14	167.0%	308	209
1,087	289	113.3%	0.04	0.00	0.14	315.00	38.25	41.25	43.15	105.9%	192	129
158	76	125.0%	0.04	0.00	0.20	317.50	40.85	43.50	46.37	202.4%	732	488
2,637	734	112.5%	0.03	0.02	0.04	320.00	43.00	46.25	46.00	220.3%	747	495
460	146	112.5%	0.03	0.00	0.04	322.50	45.55	48.50	47.60	218.4%	16	16
3,331	2,076	114.1%	0.02	0.00	0.03	325.00	48.30	51.50	52.22	156.1%	144	87
223	85	156.4%	0.05	0.00	0.30	327.50	50.30	53.50	17.35	233.8%	15	13
1,559	301	118.8%	0.01	0.00	0.02	330.00	53.45	55.55	54.54	219.1%	57	30
249	65	123.4%	0.02	0.00	0.02	332.50	55.85	58.50	59.25	248.7%	16	11
1,995	1,746	139.8%	0.03	0.00	0.05	335.00	57.50	61.25	61.70	267.1%	42	34
1,028	248	131.3%	0.02	0.00	0.02	337.50	—	—	—	—	—	—
1,089	108	128.1%	0.01	0.00	0.01	340.00	62.75	66.00	64.65	270.3%	15	16
780	8	140.6%	0.01	0.00	0.02	342.50	—	—	—	—	—	—
214	4	137.5%	0.01	0.00	0.01	345.00	67.85	71.00	40.00	284.3%	1	1
385	30	159.4%	0.09	0.00	0.04	347.50	—	—	—	—	—	—
2,443	23	143.8%	0.01	0.00	0.01	350.00	73.00	76.00	53.12	297.9%	7	1
127	45	200.0%	0.01	0.00	0.20	352.50	—	—	—	—	—	—
2,021	42	224.6%	0.03	0.00	0.40	355.00	78.35	81.00	42.00	311.0%	5	0
375	13	230.9%	0.03	0.00	0.41	357.50	—	—	—	—	—	—
562	213	162.5%	0.03	0.00	0.01	360.00	—	—	—	—	—	—
485	10	364.3%	0.03	0.00	4.00	362.50	—	—	—	—	—	—
191	9	377.3%	0.03	0.00	4.30	365.00	87.95	91.00	50.26	336.5%	7	0
68	5	206.3%	0.01	0.00	0.08	367.50	—	—	—	—	—	—
262	76	175.0%	0.01	0.00	0.01	370.00	92.70	96.00	122.80	348.8%	—	0
108	2	190.6%	0.02	0.00	0.02	372.50	—	—	—	—	—	—
220	38	193.8%	0.01	0.00	0.02	375.00	—	—	—	—	—	—
26	2	409.8%	0.09	0.00	4.30	377.50	—	—	—	—	—	—
188	1	187.5%	0.01	0.00	0.01	380.00	—	—	—	—	—	—
19	6	422.3%	0.01	0.00	4.30	382.50	—	—	—	—	—	—
162	2	428.4%	0.01	0.00	4.30	385.00	—	—	—	—	—	—
503	2	301.9%	0.01	0.00	0.50	390.00	—	—	—	—	—	—
220	2	311.3%	0.03	0.00	0.50	395.00	—	—	—	—	—	—
913	244	248.4%	0.01	0.00	0.05	400.00	—	—	—	—	—	—
49	7	475.4%	0.06	0.00	4.30	405.00	—	—	—	—	—	—
86	2	442.6%	0.08	0.00	2.70	410.00	—	—	—	—	—	—
43	1	376.6%	0.12	0.00	0.90	415.00	—	—	—	—	—	—
18	7	508.3%	0.06	0.00	4.30	420.00	—	—	—	—	—	—
50	9	518.9%	0.05	0.00	4.30	425.00	—	—	—	—	—	—
21	13	529.3%	0.04	0.00	4.30	430.00	—	—	—	—	—	—
44	15	370.3%	0.01	0.00	0.41	435.00	158.35	161.00	154.49	488.6%	4	0
8	15	548.2%	0.03	0.00	4.25	440.00	—	—	—	—	—	—
1,159	1	567.9%	0.05	0.00	4.25	450.00	172.60	176.00	170.44	516.5%	8	0
19	2	577.4%	0.05	0.00	4.25	455.00	—	—	—	—	—	—
37	4	586.9%	0.01	0.00	4.25	460.00	—	—	—	—	—	—
29	2	596.2%	0.05	0.00	4.25	465.00	—	—	—	—	—	—
328	4	340.6%	0.01	0.00	0.05	470.00	—	—	—	—	—	—
8	1	614.4%	0.01	0.00	4.25	475.00	—	—	—	—	—	—
742	1	337.5%	0.01	0.00	0.03	480.00	—	—	—	—	—	—

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 ARM put/call ratio?

For the October 9, 2026 expiration, the ARM put/call ratio based on open interest is 0.51 (18,338 puts vs 35,755 calls), and 0.56 based on today's volume. A ratio above 1 means more puts than calls.

What is ARM's implied volatility?

At-the-money implied volatility for ARM options expiring October 9, 2026 is about 73.1%, an annualized estimate of how much the market expects Arm stock to move.

How many ARM option expiration dates are there?

ARM 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.