ACM Research (ACMR) Options Chain

NASDAQ: ACMRTechnologyIndustrial Machinery/ComponentsUSD

71.37+0.57 (+0.81%)

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

Expiration date

Expiration: Oct 16, 2026
Days to expiration: 7
Share price: $71.37
Put/call ratio (OI): 0.43
Put/call ratio (volume): 2.82
ATM implied volatility: 75.8%
Expected move: ±$7.49
Open interest (C / P): 4.60K / 1.97K

ACMR options summary

The ACMR options chain for the October 16, 2026 expiration lists 25 call and 35 put contracts, with 7 days until expiration. Open interest stands at 4,602 calls and 1,970 puts, a put/call ratio of 0.43, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $71.00 strike is 75.8%, which implies the market expects a move of about ±$7.49 (10.5%) in ACM Research stock by expiration.

The most open interest sits at the $79.00 call (763 contracts) and the $65.00 put (308 contracts).

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

ACMR options chain · October 16, 2026

ACMR 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	0.45	0.18	187.9%	1	200
—	—	—	—	—	—	50.00	0.00	0.45	0.15	150.8%	3	83
—	—	—	—	—	—	55.00	0.00	0.60	0.05	123.8%	11	74
—	—	—	—	—	—	56.00	0.00	0.50	0.15	112.3%	—	78
—	—	—	—	—	—	58.00	0.00	0.40	0.22	94.3%	1	9
—	—	—	—	—	—	59.00	0.00	0.35	0.20	85.5%	6	55
1	—	79.8%	7.74	10.30	12.80	60.00	0.00	0.55	0.31	87.9%	2	294
—	—	—	—	—	—	61.00	0.00	0.55	0.26	81.3%	2	1
—	—	—	—	—	—	62.00	0.00	0.30	0.44	64.8%	1	97
—	—	—	—	—	—	63.00	0.20	0.50	0.40	72.8%	202	98
—	—	—	—	—	—	64.00	0.05	1.15	0.65	78.1%	11	156
7	1	77.7%	11.69	5.90	8.40	65.00	0.30	0.70	0.65	66.2%	59	308
1	—	75.0%	8.80	5.10	7.50	66.00	0.50	1.70	0.96	80.9%	2	4
—	—	—	—	—	—	67.00	0.85	1.35	1.33	72.0%	20	35
—	—	—	—	—	—	68.00	1.00	1.90	1.59	73.3%	3	38
—	—	—	—	—	—	69.00	1.50	2.30	1.84	75.7%	12	43
27	4	76.0%	3.30	2.90	4.50	70.00	1.55	2.70	2.10	70.6%	15	110
—	—	—	—	—	—	71.00	2.30	3.30	2.99	75.8%	9	24
ACMR $71.37
19	1	77.2%	2.11	2.30	3.20	72.00	2.90	3.90	3.14	77.7%	31	32
305	14	77.0%	2.20	2.05	3.00	72.50	2.90	4.20	4.90	74.3%	2	45
96	1	77.0%	2.00	1.90	2.75	73.00	3.50	4.10	4.30	73.0%	2	1
13	5	78.3%	1.80	1.25	2.75	74.00	4.00	4.80	5.14	72.2%	1	10
552	8	77.0%	1.45	1.25	2.00	75.00	3.80	5.90	5.64	65.5%	4	39
46	34	84.3%	1.10	0.95	2.25	76.00	4.60	7.10	3.65	73.2%	3	5
104	2	71.2%	0.92	0.35	1.50	77.00	5.90	7.90	5.85	82.1%	4	12
62	21	72.8%	0.98	0.40	1.35	77.50	5.70	9.00	8.20	84.1%	1	3
6	2	76.1%	0.72	0.50	1.25	78.00	6.10	9.40	7.60	84.3%	31	45
763	4	77.8%	0.60	0.40	1.10	79.00	6.90	9.50	5.55	70.7%	10	14
247	2	76.6%	0.40	0.25	0.90	80.00	8.00	10.40	8.69	76.4%	1	11
43	1	86.2%	0.75	0.05	0.95	82.50	10.10	13.40	4.55	91.9%	6	8
588	5	79.1%	0.15	0.00	0.40	85.00	12.50	15.00	12.98	71.5%	2	35
316	20	102.2%	0.30	0.00	0.75	87.50	14.90	18.20	13.60	105.1%	—	1
527	6	103.1%	0.09	0.00	0.50	90.00	17.20	20.70	10.95	108.6%	1	2
46	1	107.0%	0.25	0.00	0.25	95.00	22.20	25.60	17.56	123.0%	2	0
278	1	140.4%	0.75	0.00	0.55	100.00	27.10	30.60	34.40	134.8%	1	0
22	1	156.1%	0.48	0.00	0.55	105.00	—	—	—	—	—	—
37	3	180.7%	0.15	0.00	0.75	110.00	—	—	—	—	—	—
71	25	174.8%	0.13	0.00	0.40	115.00	—	—	—	—	—	—
425	2	187.1%	0.15	0.00	0.40	120.00	—	—	—	—	—	—

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 ACMR put/call ratio?

For the October 16, 2026 expiration, the ACMR put/call ratio based on open interest is 0.43 (1,970 puts vs 4,602 calls), and 2.82 based on today's volume. A ratio above 1 means more puts than calls.

What is ACMR's implied volatility?

At-the-money implied volatility for ACMR options expiring October 16, 2026 is about 75.8%, an annualized estimate of how much the market expects ACM Research stock to move.

How many ACMR option expiration dates are there?

ACMR has 13 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.