Allison Transmission (ALSN) Options Chain

NYSE: ALSNConsumer DiscretionaryAuto Parts:O.E.M.USD

110.71+1.60 (+1.47%)

Market open · Delayed 15 min · as of Oct 9, 2:11 PM ET

Expiration date

Expiration: Oct 16, 2026
Days to expiration: 7
Share price: $110.51
Put/call ratio (OI): 0.11
Put/call ratio (volume): 0.53
ATM implied volatility: 37.5%
Expected move: ±$5.74
Open interest (C / P): 476 / 53

ALSN options summary

The ALSN options chain for the October 16, 2026 expiration lists 9 call and 6 put contracts, with 7 days until expiration. Open interest stands at 476 calls and 53 puts, a put/call ratio of 0.11, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $110.00 strike is 37.5%, which implies the market expects a move of about ±$5.74 (5.2%) in Allison Transmission stock by expiration.

The most open interest sits at the $125.00 call (217 contracts) and the $105.00 put (24 contracts).

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

ALSN options chain · October 16, 2026

ALSN 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
—	—	—	—	—	—	100.00	0.00	1.30	0.40	61.2%	3	8
—	—	—	—	—	—	105.00	0.25	1.25	1.18	51.9%	1	24
3	1	30.5%	1.62	1.80	2.25	110.00	1.60	2.65	3.32	44.5%	2	4
ALSN $110.51
2	2	35.2%	3.50	0.10	0.75	115.00	4.40	6.80	5.33	62.7%	5	10
18	1	60.5%	2.23	0.00	1.00	120.00	8.90	12.00	10.18	59.6%	5	6
217	1	58.3%	0.01	0.00	0.70	125.00	14.20	16.40	8.65	73.1%	1	1
204	7	90.4%	0.40	0.00	1.75	130.00	—	—	—	—	—	—
4	12	110.8%	0.40	0.00	2.15	135.00	—	—	—	—	—	—
18	1	124.4%	0.41	0.00	2.15	140.00	—	—	—	—	—	—
4	1	137.1%	0.34	0.00	2.15	145.00	—	—	—	—	—	—
6	6	149.1%	0.05	0.00	2.15	150.00	—	—	—	—	—	—

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 ALSN put/call ratio?

For the October 16, 2026 expiration, the ALSN put/call ratio based on open interest is 0.11 (53 puts vs 476 calls), and 0.53 based on today's volume. A ratio above 1 means more puts than calls.

What is ALSN's implied volatility?

At-the-money implied volatility for ALSN options expiring October 16, 2026 is about 37.5%, an annualized estimate of how much the market expects Allison Transmission stock to move.

How many ALSN option expiration dates are there?

ALSN has 4 listed expiration dates, from Oct 16, 2026 to Feb 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.