Arm (ARM) Options Chain

NASDAQ: ARMTechnologySemiconductorsUSD

266.28-9.01 (-3.27%)

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

Expiration date

Expiration: Jan 19, 2029
Days to expiration: 831
Share price: $266.28
Put/call ratio (OI): 0.64
Put/call ratio (volume): 1.95
ATM implied volatility: 63.7%
Expected move: ±$256.10
Open interest (C / P): 1.03K / 666

ARM options summary

The ARM options chain for the January 19, 2029 expiration lists 36 call and 30 put contracts, with 831 days until expiration. Open interest stands at 1,034 calls and 666 puts, a put/call ratio of 0.64, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $270.00 strike is 63.7%, which implies the market expects a move of about ±$256.10 (96.2%) in Arm stock by expiration.

The most open interest sits at the $430.00 call (232 contracts) and the $360.00 put (183 contracts).

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

ARM options chain · January 19, 2029

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
12	1	79.2%	187.95	171.00	175.00	125.00	14.75	17.50	16.70	57.9%	12	61
1	—	79.0%	204.50	168.00	172.50	130.00	17.10	19.20	18.67	58.4%	1	9
—	—	—	—	—	—	135.00	17.95	22.50	19.35	58.7%	1	15
—	—	—	—	—	—	140.00	19.50	24.50	22.25	58.5%	4	6
3	8	77.8%	168.82	160.00	164.00	145.00	21.65	24.65	23.25	57.6%	1	2
5	2	77.2%	162.75	157.00	161.25	150.00	23.90	26.55	26.00	57.6%	1	4
—	—	—	—	—	—	155.00	25.00	30.00	27.45	57.8%	1	54
1	—	76.8%	136.27	152.00	156.50	160.00	27.65	31.60	27.60	57.8%	1	2
—	—	—	—	—	—	165.00	30.55	33.90	31.03	58.1%	2	3
17	1	76.2%	165.88	147.00	151.45	170.00	31.50	36.00	33.25	57.4%	1	3
12	10	75.6%	186.10	142.50	146.50	180.00	38.05	39.50	39.80	57.6%	4	53
1	—	75.4%	127.71	140.00	144.50	185.00	38.80	42.05	45.10	56.8%	—	16
—	—	—	—	—	—	190.00	40.50	45.00	40.60	56.6%	1	44
1	1	74.9%	143.89	135.50	140.00	195.00	—	—	—	—	—	—
48	10	74.8%	172.05	133.50	138.00	200.00	46.55	48.50	48.10	56.2%	7	16
2	2	74.5%	136.52	129.50	133.90	210.00	50.75	55.00	53.05	56.1%	2	5
10	8	74.2%	160.46	125.50	130.00	220.00	56.00	60.50	54.33	55.9%	1	4
3	1	73.9%	175.93	122.00	126.00	230.00	62.60	65.00	64.90	55.7%	38	34
47	13	73.8%	120.60	118.50	122.50	240.00	67.20	71.50	65.00	55.3%	3	8
38	4	73.5%	118.10	115.00	119.00	250.00	73.00	77.50	75.45	55.1%	4	8
13	6	73.2%	115.10	111.50	115.55	260.00	79.00	83.50	81.42	54.8%	6	1
ARM $266.28
3	1	73.1%	110.15	108.50	112.50	270.00	85.00	89.50	88.60	54.4%	1	3
30	3	73.0%	108.70	105.50	109.50	280.00	91.50	96.00	92.50	54.2%	5	14
5	1	72.8%	105.70	102.50	106.50	290.00	98.00	102.50	100.19	54.0%	1	1
34	3	73.2%	102.06	101.00	104.00	300.00	104.50	109.00	100.00	53.6%	58	64
11	4	72.8%	115.00	97.50	101.50	310.00	111.60	116.00	114.70	53.6%	1	6
19	1	72.8%	98.10	95.00	99.00	320.00	118.55	122.70	121.30	53.3%	2	3
9	1	72.7%	134.83	92.65	96.35	330.00	125.50	130.00	122.20	53.1%	29	30
48	3	72.5%	98.99	90.00	93.90	340.00	—	—	—	—	—	—
54	3	72.3%	90.50	88.00	91.15	350.00	—	—	—	—	—	—
7	4	72.2%	92.40	85.65	89.05	360.00	147.50	151.95	142.69	52.5%	179	183
20	1	72.2%	88.00	83.50	87.15	370.00	—	—	—	—	—	—
16	5	72.2%	98.37	79.50	83.50	390.00	—	—	—	—	—	—
20	8	72.5%	84.20	78.10	82.00	400.00	178.00	182.50	181.11	51.5%	10	12
—	—	—	—	—	—	410.00	186.00	190.05	176.14	51.3%	2	2
14	20	72.4%	81.10	74.50	78.50	420.00	—	—	—	—	—	—
232	40	72.3%	75.95	73.00	76.45	430.00	—	—	—	—	—	—
12	11	72.3%	94.55	71.05	74.95	440.00	—	—	—	—	—	—
1	1	72.2%	73.50	68.00	71.75	460.00	—	—	—	—	—	—
195	3	72.2%	69.80	66.50	70.35	470.00	—	—	—	—	—	—
65	2	72.7%	71.73	65.50	69.95	480.00	—	—	—	—	—	—
25	12	72.4%	66.20	64.00	68.00	490.00	—	—	—	—	—	—

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 January 19, 2029 expiration, the ARM put/call ratio based on open interest is 0.64 (666 puts vs 1,034 calls), and 1.95 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 January 19, 2029 is about 63.7%, an annualized estimate of how much the market expects Arm stock to move.

How many ARM option expiration dates are there?

ARM has 18 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.