Alpha and Omega Semiconductor (AOSL) Options Chain

NASDAQ: AOSLTechnologySemiconductorsUSD

27.87-0.54 (-1.90%)

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

Expiration date

Expiration: Dec 18, 2026
Days to expiration: 68
Share price: $27.87
Put/call ratio (OI): 0.68
Put/call ratio (volume): 2.25
ATM implied volatility: 80.6%
Expected move: ±$9.69
Open interest (C / P): 2.79K / 1.89K

AOSL options summary

The AOSL options chain for the December 18, 2026 expiration lists 21 call and 20 put contracts, with 68 days until expiration. Open interest stands at 2,792 calls and 1,894 puts, a put/call ratio of 0.68, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $27.50 strike is 80.6%, which implies the market expects a move of about ±$9.69 (34.8%) in Alpha and Omega Semiconductor stock by expiration.

The most open interest sits at the $40.00 call (693 contracts) and the $25.00 put (813 contracts).

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

AOSL options chain · December 18, 2026

AOSL 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
0	1	—	13.20	0.00	0.00	15.00	0.00	0.60	0.53	100.4%	69	281
1	—	—	16.06	27.00	30.40	17.50	0.30	0.45	0.40	84.1%	5	89
41	2	93.2%	7.20	7.20	10.70	20.00	0.60	1.00	0.65	83.0%	80	143
0	30	—	27.40	0.00	0.00	22.50	1.25	1.45	1.40	78.6%	1	67
111	2	80.4%	5.15	4.00	6.50	25.00	1.80	2.95	1.83	80.3%	2	813
371	1	83.5%	4.00	3.50	4.80	27.50	2.60	4.40	2.95	77.6%	8	49
AOSL $27.87
147	7	77.6%	2.85	2.15	3.60	30.00	4.00	5.90	4.11	76.5%	2	76
123	2	80.6%	1.95	1.80	2.70	32.50	6.30	7.80	6.00	84.3%	4	71
265	20	81.5%	1.75	1.10	2.30	35.00	7.20	9.60	7.00	71.2%	5	75
86	1	78.8%	1.45	0.55	1.75	37.50	9.50	12.60	9.35	85.8%	24	8
693	8	79.4%	0.95	0.30	1.40	40.00	11.40	14.20	11.76	73.6%	1	126
67	4	84.2%	1.05	0.35	1.15	42.50	16.40	18.70	12.20	140.4%	24	45
260	1	80.8%	0.50	0.30	0.65	45.00	15.70	18.90	16.84	64.5%	1	0
0	1	88.2%	0.39	0.00	1.00	47.50	18.20	0.00	19.26	—	1	0
80	2	82.4%	0.80	0.00	0.55	50.00	0.00	0.00	16.75	—	2	0
3	1	89.0%	0.40	0.00	0.60	52.50	0.00	0.00	20.32	—	2	0
29	2	90.5%	0.32	0.00	0.50	55.00	21.50	23.80	23.20	—	1	0
0	1	50.0%	0.85	0.00	0.00	57.50	—	—	—	—	—	—
371	4	105.7%	0.20	0.05	0.65	60.00	0.00	0.00	28.68	—	1	0
0	15	50.0%	0.90	0.00	0.00	65.00	0.00	0.00	28.30	—	4	0
144	1	117.6%	0.15	0.00	0.60	70.00	42.50	46.10	34.00	187.9%	2	51

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 AOSL put/call ratio?

For the December 18, 2026 expiration, the AOSL put/call ratio based on open interest is 0.68 (1,894 puts vs 2,792 calls), and 2.25 based on today's volume. A ratio above 1 means more puts than calls.

What is AOSL's implied volatility?

At-the-money implied volatility for AOSL options expiring December 18, 2026 is about 80.6%, an annualized estimate of how much the market expects Alpha and Omega Semiconductor stock to move.

How many AOSL option expiration dates are there?

AOSL has 6 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.