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: Oct 16, 2026
Days to expiration: 6
Share price: $27.87
Put/call ratio (OI): 0.33
Put/call ratio (volume): 7.67
ATM implied volatility: 73.8%
Expected move: ±$2.64
Open interest (C / P): 4.38K / 1.44K

AOSL options summary

The AOSL options chain for the October 16, 2026 expiration lists 9 call and 11 put contracts, with 6 days until expiration. Open interest stands at 4,380 calls and 1,436 puts, a put/call ratio of 0.33, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $27.50 strike is 73.8%, which implies the market expects a move of about ±$2.64 (9.5%) in Alpha and Omega Semiconductor stock by expiration.

The most open interest sits at the $32.50 call (3.17K contracts) and the $25.00 put (941 contracts).

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

AOSL options chain · October 16, 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
—	—	—	—	—	—	15.00	0.00	0.25	0.05	259.4%	1	28
—	—	—	—	—	—	17.50	0.00	0.80	0.42	266.8%	—	50
—	—	—	—	—	—	20.00	0.00	0.55	0.08	184.8%	10	129
72	1	133.2%	4.25	3.90	7.40	22.50	0.00	0.15	0.10	96.1%	16	56
51	9	71.5%	4.90	1.90	4.20	25.00	0.10	0.20	0.25	67.6%	238	941
445	4	78.9%	0.95	0.80	2.00	27.50	0.25	1.50	0.90	68.7%	9	60
AOSL $27.87
379	10	67.0%	0.30	0.15	0.50	30.00	1.45	3.50	1.60	68.6%	1	100
3,173	5	71.1%	0.05	0.00	0.15	32.50	3.40	5.50	5.30	153.0%	6	1
113	1	119.5%	0.13	0.00	0.40	35.00	5.50	8.80	6.65	77.3%	15	42
109	1	181.8%	0.10	0.00	0.95	37.50	8.00	10.90	9.85	255.4%	59	0
27	10	207.6%	0.75	0.00	0.95	40.00	10.50	13.00	14.17	249.4%	44	29
11	11	230.9%	0.45	0.00	0.95	42.50	—	—	—	—	—	—

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 October 16, 2026 expiration, the AOSL put/call ratio based on open interest is 0.33 (1,436 puts vs 4,380 calls), and 7.67 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 October 16, 2026 is about 73.8%, 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.