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: Nov 20, 2026
Days to expiration: 40
Share price: $95.57
Put/call ratio (OI): 0.74
Put/call ratio (volume): 1.56
ATM implied volatility: 25.4%
Expected move: ±$8.05
Open interest (C / P): 2.14K / 1.58K

ACGL options summary

The ACGL options chain for the November 20, 2026 expiration lists 10 call and 10 put contracts, with 40 days until expiration. Open interest stands at 2,140 calls and 1,581 puts, a put/call ratio of 0.74, which is fairly balanced between calls and puts. At-the-money implied volatility near the $95.00 strike is 25.4%, which implies the market expects a move of about ±$8.05 (8.4%) in Arch Capital Group stock by expiration.

The most open interest sits at the $100.00 call (1.38K contracts) and the $95.00 put (843 contracts).

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

ACGL options chain · November 20, 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
—	—	—	—	—	—	50.00	0.00	2.15	0.20	135.8%	—	5
—	—	—	—	—	—	65.00	0.00	0.00	0.68	25.0%	1	0
—	—	—	—	—	—	70.00	0.00	0.65	0.15	56.5%	3	6
—	—	—	—	—	—	75.00	0.00	1.15	0.65	52.5%	1	6
1	1	82.5%	20.12	17.70	21.00	80.00	0.00	0.90	1.33	47.2%	1	62
0	2	—	10.35	0.00	0.00	85.00	0.05	0.80	0.79	33.9%	55	98
64	43	36.1%	7.40	6.70	7.80	90.00	0.80	1.15	0.90	25.7%	2	372
103	3	28.3%	3.80	3.30	3.90	95.00	2.30	2.60	2.35	22.6%	10	843
ACGL $95.57
1,384	15	26.6%	1.51	1.15	1.70	100.00	4.70	7.30	6.30	36.5%	1	146
171	1	27.0%	0.54	0.10	0.70	105.00	6.40	8.60	8.28	—	40	43
50	1	31.3%	0.10	0.05	0.45	110.00	—	—	—	—	—	—
331	2	49.4%	0.10	0.00	1.15	115.00	—	—	—	—	—	—
22	4	56.8%	0.05	0.00	1.15	120.00	—	—	—	—	—	—
14	1	59.1%	0.75	0.00	1.75	125.00	—	—	—	—	—	—

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 November 20, 2026 expiration, the ACGL put/call ratio based on open interest is 0.74 (1,581 puts vs 2,140 calls), and 1.56 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 November 20, 2026 is about 25.4%, 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.