Allegro MicroSystems (ALGM) Options Chain

NASDAQ: ALGMTechnologySemiconductorsUSD

35.57-0.70 (-1.93%)

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

Expiration date

Expiration: May 21, 2027
Days to expiration: 224
Share price: $35.57
Put/call ratio (OI): 0.18
Put/call ratio (volume): 0.20
ATM implied volatility: 66.9%
Expected move: ±$18.65
Open interest (C / P): 394 / 69

ALGM options summary

The ALGM options chain for the May 21, 2027 expiration lists 25 call and 16 put contracts, with 224 days until expiration. Open interest stands at 394 calls and 69 puts, a put/call ratio of 0.18, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $35.00 strike is 66.9%, which implies the market expects a move of about ±$18.65 (52.4%) in Allegro MicroSystems stock by expiration.

The most open interest sits at the $75.00 call (155 contracts) and the $45.00 put (12 contracts).

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

ALGM options chain · May 21, 2027

ALGM 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
1	—	95.9%	24.70	20.20	23.00	15.00	—	—	—	—	—	—
—	—	—	—	—	—	17.50	0.80	1.85	1.33	88.5%	10	10
0	2	402.9%	36.21	30.50	34.60	20.00	0.65	1.50	1.58	69.9%	3	6
—	—	—	—	—	—	22.50	1.35	1.95	1.37	69.0%	1	5
0	5	—	29.00	0.00	0.00	25.00	2.05	2.60	2.55	67.4%	5	4
—	—	—	—	—	—	27.50	0.00	0.00	3.50	6.3%	—	0
6	10	73.8%	10.10	9.80	11.30	30.00	3.40	4.60	4.02	63.3%	—	6
14	9	250.9%	27.29	22.60	26.40	32.50	3.20	7.00	4.90	62.0%	5	2
14	3	71.8%	8.10	7.80	8.40	35.00	5.90	7.10	6.90	62.1%	1	8
ALGM $35.57
10	10	70.8%	7.23	6.50	7.60	37.50	7.30	8.50	8.70	61.0%	1	0
24	14	70.6%	6.00	5.70	6.70	40.00	—	—	—	—	—	—
0	2	70.9%	5.41	5.10	5.90	42.50	10.30	12.00	11.50	59.4%	2	3
12	8	70.0%	6.60	4.00	5.50	45.00	12.10	13.90	14.60	59.1%	1	12
22	1	70.6%	5.70	3.60	4.90	47.50	—	—	—	—	—	—
37	1	71.5%	5.57	3.30	4.40	50.00	15.90	18.00	17.76	58.5%	1	2
2	2	82.8%	12.17	3.90	5.30	52.50	—	—	—	—	—	—
11	1	71.8%	2.87	2.50	3.60	55.00	20.00	22.10	21.81	56.1%	2	0
16	17	72.2%	3.17	1.80	3.10	60.00	—	—	—	—	—	—
12	17	71.6%	2.98	1.60	2.65	62.50	—	—	—	—	—	—
4	1	71.3%	2.10	1.25	2.50	65.00	—	—	—	—	—	—
3	3	72.4%	2.55	1.20	2.30	67.50	—	—	—	—	—	—
9	2	72.2%	2.20	1.05	2.05	70.00	34.50	36.50	20.60	65.2%	10	10
2	1	72.4%	1.50	0.85	1.95	72.50	—	—	—	—	—	—
155	146	73.4%	1.05	0.85	1.80	75.00	38.10	40.40	37.10	67.8%	10	0
6	1	73.5%	1.50	0.65	1.50	80.00	43.80	45.80	32.95	58.6%	—	1
27	4	71.5%	1.12	0.25	1.30	85.00	—	—	—	—	—	—
2	1	72.1%	0.85	0.25	1.05	90.00	—	—	—	—	—	—
5	1	71.3%	0.65	0.10	0.90	95.00	—	—	—	—	—	—

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 ALGM put/call ratio?

For the May 21, 2027 expiration, the ALGM put/call ratio based on open interest is 0.18 (69 puts vs 394 calls), and 0.20 based on today's volume. A ratio above 1 means more puts than calls.

What is ALGM's implied volatility?

At-the-money implied volatility for ALGM options expiring May 21, 2027 is about 66.9%, an annualized estimate of how much the market expects Allegro MicroSystems stock to move.

How many ALGM option expiration dates are there?

ALGM has 9 listed expiration dates, from Oct 16, 2026 to Dec 15, 2028.

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.