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: May 21, 2027
Days to expiration: 223
Share price: $71.37
Put/call ratio (OI): 0.81
Put/call ratio (volume): 0.39
ATM implied volatility: 71.8%
Expected move: ±$40.05
Open interest (C / P): 36 / 29

ACMR options summary

The ACMR options chain for the May 21, 2027 expiration lists 6 call and 8 put contracts, with 223 days until expiration. Open interest stands at 36 calls and 29 puts, a put/call ratio of 0.81, which is fairly balanced between calls and puts. At-the-money implied volatility near the $72.50 strike is 71.8%, which implies the market expects a move of about ±$40.05 (56.1%) in ACM Research stock by expiration.

The most open interest sits at the $85.00 call (12 contracts) and the $50.00 put (9 contracts).

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

ACMR options chain · May 21, 2027

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
—	—	—	—	—	—	40.00	2.20	3.50	2.92	77.3%	1	2
—	—	—	—	—	—	45.00	3.00	5.00	3.80	75.0%	1	0
—	—	—	—	—	—	47.50	4.30	5.70	5.00	76.3%	—	1
—	—	—	—	—	—	50.00	4.70	6.80	4.95	75.1%	—	9
2	1	82.9%	31.00	23.50	27.50	55.00	—	—	—	—	—	—
2	1	83.3%	27.70	21.70	24.40	60.00	—	—	—	—	—	—
—	—	—	—	—	—	62.50	10.30	12.40	9.35	74.7%	—	1
ACMR $71.37
—	—	—	—	—	—	72.50	15.50	17.50	16.10	71.8%	—	6
12	11	81.4%	17.09	12.00	14.90	85.00	—	—	—	—	—	—
3	1	81.2%	13.48	10.60	13.60	90.00	26.90	30.00	28.30	71.0%	—	3
7	1	79.7%	11.50	10.00	11.20	95.00	—	—	—	—	—	—
10	8	80.4%	10.70	8.30	11.10	100.00	—	—	—	—	—	—
—	—	—	—	—	—	105.00	38.50	41.50	38.40	68.9%	7	7

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 May 21, 2027 expiration, the ACMR put/call ratio based on open interest is 0.81 (29 puts vs 36 calls), and 0.39 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 May 21, 2027 is about 71.8%, 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.