Aeluma (ALMU) Options Chain

NASDAQ: ALMUTechnologySemiconductorsUSD

11.40-0.53 (-4.44%)

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

Expiration date

Expiration: Oct 16, 2026
Days to expiration: 7
Share price: $11.40
Put/call ratio (OI): 0.73
Put/call ratio (volume): 0.63
ATM implied volatility: 76.6%
Expected move: ±$1.21
Open interest (C / P): 1.38K / 1.01K

ALMU options summary

The ALMU options chain for the October 16, 2026 expiration lists 16 call and 14 put contracts, with 7 days until expiration. Open interest stands at 1,381 calls and 1,009 puts, a put/call ratio of 0.73, which is fairly balanced between calls and puts. At-the-money implied volatility near the $11.00 strike is 76.6%, which implies the market expects a move of about ±$1.21 (10.6%) in Aeluma stock by expiration.

The most open interest sits at the $14.00 call (463 contracts) and the $10.00 put (300 contracts).

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

ALMU options chain · October 16, 2026

ALMU 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
—	—	—	—	—	—	7.00	0.00	0.25	0.05	257.8%	—	37
11	15	210.2%	4.00	2.60	4.50	8.00	0.00	0.05	0.05	140.6%	1	24
—	—	—	—	—	—	9.00	0.00	0.40	0.08	171.1%	2	48
23	17	138.3%	3.30	1.30	2.10	10.00	0.00	0.20	0.11	89.8%	52	300
5	1	80.9%	2.57	0.60	0.85	11.00	0.15	0.40	0.32	72.3%	6	215
ALMU $11.40
25	8	76.2%	0.35	0.15	0.35	12.00	0.55	1.05	0.83	67.6%	7	174
58	7	93.0%	0.25	0.00	0.25	13.00	1.50	1.95	1.60	93.0%	5	86
463	107	117.2%	0.08	0.00	0.20	14.00	2.05	2.95	2.21	177.7%	5	60
301	3	143.8%	0.10	0.00	0.20	15.00	2.65	3.80	2.35	174.2%	2	7
147	1	193.0%	0.05	0.00	0.35	16.00	4.30	5.00	4.70	144.5%	10	30
71	1	207.8%	0.06	0.00	0.30	17.00	4.80	5.90	5.40	251.6%	20	23
32	1	228.9%	0.10	0.00	0.30	18.00	5.50	6.80	5.60	245.3%	5	0
14	1	265.2%	0.15	0.00	0.40	19.00	6.50	7.80	6.12	265.2%	5	5
98	1	214.1%	0.05	0.00	0.10	20.00	—	—	—	—	—	—
121	7	300.8%	0.06	0.00	0.40	21.00	—	—	—	—	—	—
7	20	331.3%	0.10	0.00	0.40	23.00	—	—	—	—	—	—
4	2	358.6%	0.05	0.00	0.40	25.00	12.50	14.10	11.75	449.2%	—	0
1	—	416.4%	0.18	0.00	0.40	30.00	—	—	—	—	—	—

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 ALMU put/call ratio?

For the October 16, 2026 expiration, the ALMU put/call ratio based on open interest is 0.73 (1,009 puts vs 1,381 calls), and 0.63 based on today's volume. A ratio above 1 means more puts than calls.

What is ALMU's implied volatility?

At-the-money implied volatility for ALMU options expiring October 16, 2026 is about 76.6%, an annualized estimate of how much the market expects Aeluma stock to move.

How many ALMU option expiration dates are there?

ALMU has 4 listed expiration dates, from Oct 16, 2026 to May 21, 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.