Amentum (AMTM) Options Chain

NYSE: AMTMConsumer DiscretionaryBusiness ServicesUSD

19.29+0.32 (+1.69%)

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

Expiration date

Expiration: Nov 20, 2026
Days to expiration: 40
Share price: $19.29
Put/call ratio (OI): 0.58
Put/call ratio (volume): 0.98
ATM implied volatility: 45.4%
Expected move: ±$2.90
Open interest (C / P): 205 / 118

AMTM options summary

The AMTM options chain for the November 20, 2026 expiration lists 5 call and 6 put contracts, with 40 days until expiration. Open interest stands at 205 calls and 118 puts, a put/call ratio of 0.58, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $20.00 strike is 45.4%, which implies the market expects a move of about ±$2.90 (15.0%) in Amentum stock by expiration.

The most open interest sits at the $20.00 call (103 contracts) and the $17.50 put (62 contracts).

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

AMTM options chain · November 20, 2026

AMTM 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
—	—	—	—	—	—	12.50	0.00	0.05	0.20	63.3%	2	2
17	2	58.8%	4.42	4.20	4.70	15.00	0.00	0.20	0.06	52.1%	82	3
2	2	62.9%	1.50	1.90	2.60	17.50	0.35	0.45	0.41	45.9%	13	62
AMTM $19.29
103	32	48.5%	0.80	0.75	0.95	20.00	1.35	1.50	1.45	42.3%	6	16
66	70	47.9%	0.25	0.15	0.30	22.50	3.00	4.20	3.80	52.8%	2	6
17	2	50.4%	0.10	0.00	0.20	25.00	5.40	6.60	7.00	66.2%	1	29

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 AMTM put/call ratio?

For the November 20, 2026 expiration, the AMTM put/call ratio based on open interest is 0.58 (118 puts vs 205 calls), and 0.98 based on today's volume. A ratio above 1 means more puts than calls.

What is AMTM's implied volatility?

At-the-money implied volatility for AMTM options expiring November 20, 2026 is about 45.4%, an annualized estimate of how much the market expects Amentum stock to move.

How many AMTM option expiration dates are there?

AMTM has 6 listed expiration dates, from Oct 16, 2026 to Dec 17, 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.