Arch Capital Group (ACGL) Options Chain

NASDAQ: ACGLFinanceProperty-Casualty InsurersUSD

95.57-0.51 (-0.53%)

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

Expiration date

Expiration: Dec 18, 2026
Days to expiration: 68
Share price: $95.57
Put/call ratio (OI): 0.38
Put/call ratio (volume): 0.51
ATM implied volatility: 24.2%
Expected move: ±$9.97
Open interest (C / P): 1.85K / 711

ACGL options summary

The ACGL options chain for the December 18, 2026 expiration lists 12 call and 11 put contracts, with 68 days until expiration. Open interest stands at 1,851 calls and 711 puts, a put/call ratio of 0.38, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $95.00 strike is 24.2%, which implies the market expects a move of about ±$9.97 (10.4%) in Arch Capital Group stock by expiration.

The most open interest sits at the $105.00 call (617 contracts) and the $85.00 put (319 contracts).

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

ACGL options chain · December 18, 2026

ACGL 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
—	—	—	—	—	—	65.00	0.00	0.75	0.55	53.7%	1	2
—	—	—	—	—	—	70.00	0.00	0.95	0.90	56.1%	2	77
4	1	99.7%	22.29	25.60	28.60	75.00	1.70	2.45	1.65	59.8%	—	1
61	1	64.0%	20.53	17.40	21.40	80.00	0.00	1.15	0.50	39.3%	1	4
5	2	41.5%	11.01	11.50	13.10	85.00	0.00	1.65	1.10	34.3%	1	319
42	1	35.4%	7.80	7.50	8.90	90.00	1.10	2.05	1.80	26.6%	5	40
37	22	27.9%	3.90	2.95	4.90	95.00	3.00	3.10	2.95	20.4%	1	71
ACGL $95.57
119	1	26.4%	2.00	1.05	2.60	100.00	5.20	6.10	5.60	20.3%	5	182
617	1	30.4%	0.92	0.00	1.85	105.00	5.70	8.30	6.80	—	12	14
585	1	35.5%	0.05	0.00	1.55	110.00	18.60	22.40	18.04	67.2%	—	1
366	23	38.1%	0.31	0.00	1.15	115.00	—	—	—	—	—	—
11	1	43.8%	0.25	0.00	1.15	120.00	28.30	32.30	23.46	81.2%	—	0
4	1	48.4%	0.63	0.00	1.10	125.00	—	—	—	—	—	—
0	—	25.0%	0.35	0.00	0.00	140.00	—	—	—	—	—	—

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 ACGL put/call ratio?

For the December 18, 2026 expiration, the ACGL put/call ratio based on open interest is 0.38 (711 puts vs 1,851 calls), and 0.51 based on today's volume. A ratio above 1 means more puts than calls.

What is ACGL's implied volatility?

At-the-money implied volatility for ACGL options expiring December 18, 2026 is about 24.2%, an annualized estimate of how much the market expects Arch Capital Group stock to move.

How many ACGL option expiration dates are there?

ACGL has 4 listed expiration dates, from Oct 16, 2026 to Mar 19, 2027.

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.