Astera Labs (ALAB) Options Chain

NASDAQ: ALABTechnologySemiconductorsUSD

342.21-4.84 (-1.39%)

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

Expiration date

Expiration: Jan 19, 2029
Days to expiration: 831
Share price: $342.21
Put/call ratio (OI): 0.70
Put/call ratio (volume): 0.75
ATM implied volatility: 77.5%
Expected move: ±$399.94
Open interest (C / P): 327 / 229

ALAB options summary

The ALAB options chain for the January 19, 2029 expiration lists 31 call and 23 put contracts, with 831 days until expiration. Open interest stands at 327 calls and 229 puts, a put/call ratio of 0.70, which is fairly balanced between calls and puts. At-the-money implied volatility near the $340.00 strike is 77.5%, which implies the market expects a move of about ±$399.94 (116.9%) in Astera Labs stock by expiration.

The most open interest sits at the $380.00 call (56 contracts) and the $250.00 put (61 contracts).

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

ALAB options chain · January 19, 2029

ALAB 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
11	1	92.6%	263.50	243.00	251.00	135.00	23.10	24.90	24.02	72.9%	3	16
1	—	93.0%	247.73	241.00	249.00	140.00	24.60	27.25	26.88	72.9%	—	2
—	—	—	—	—	—	145.00	26.55	29.10	26.01	72.8%	2	4
—	—	—	—	—	—	155.00	30.15	33.60	36.92	72.6%	1	0
1	—	90.3%	218.50	229.00	237.50	160.00	29.00	38.00	34.42	72.0%	—	1
—	—	—	—	—	—	165.00	34.55	36.60	35.97	71.9%	—	2
1	3	89.7%	227.40	224.00	232.45	170.00	—	—	—	—	—	—
—	—	—	—	—	—	175.00	36.00	41.60	36.80	70.6%	28	34
0	1	90.2%	265.49	220.00	229.00	180.00	—	—	—	—	—	—
3	1	88.7%	212.00	211.00	218.60	200.00	50.30	52.00	50.80	70.7%	2	11
10	—	88.4%	145.02	207.00	214.00	210.00	—	—	—	—	—	—
3	1	89.0%	169.35	203.00	212.00	220.00	58.05	64.30	56.34	70.3%	7	8
3	1	88.5%	187.80	199.00	207.50	230.00	62.00	71.00	66.04	70.1%	2	1
2	—	88.3%	140.60	195.00	204.00	240.00	70.65	74.20	85.26	70.3%	—	2
20	2	87.5%	191.87	191.00	199.00	250.00	76.15	80.40	72.30	70.3%	4	61
22	1	87.3%	208.10	188.00	195.00	260.00	81.70	86.05	83.46	70.0%	1	18
8	1	87.5%	199.00	184.00	193.00	270.00	85.00	94.00	85.10	69.7%	1	18
3	1	87.6%	216.00	181.00	190.00	280.00	91.75	99.80	119.73	69.7%	—	4
14	10	87.6%	199.80	178.00	187.00	290.00	96.00	106.00	101.24	69.0%	1	4
5	2	87.0%	209.27	175.00	182.50	300.00	102.60	109.25	104.00	68.1%	4	19
9	4	86.8%	177.00	169.00	176.55	320.00	117.40	122.45	120.30	68.5%	1	2
3	3	87.0%	167.97	166.00	175.00	330.00	123.90	129.30	125.23	68.5%	—	2
3	1	86.5%	174.35	163.00	170.90	340.00	131.30	135.55	130.88	68.4%	1	3
ALAB $342.21
17	3	86.5%	161.17	160.00	169.00	350.00	137.20	142.20	135.50	68.0%	4	5
—	—	—	—	—	—	360.00	142.00	148.40	136.00	67.2%	8	4
2	2	86.5%	155.70	155.00	164.00	370.00	149.00	156.20	154.50	67.3%	2	8
56	1	86.7%	154.05	153.00	162.00	380.00	—	—	—	—	—	—
20	13	85.8%	151.00	148.00	154.85	400.00	—	—	—	—	—	—
20	—	85.9%	166.30	146.00	152.75	410.00	—	—	—	—	—	—
6	1	86.2%	182.90	144.00	151.55	420.00	—	—	—	—	—	—
1	6	85.5%	169.00	139.00	145.95	440.00	—	—	—	—	—	—
21	7	86.1%	164.50	135.00	144.50	460.00	—	—	—	—	—	—
20	1	86.3%	131.70	130.00	139.00	490.00	—	—	—	—	—	—
1	1	85.9%	130.02	128.00	136.00	500.00	—	—	—	—	—	—
21	2	85.5%	165.00	126.00	133.20	510.00	—	—	—	—	—	—
20	26	85.5%	163.19	121.00	128.30	540.00	—	—	—	—	—	—

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 ALAB put/call ratio?

For the January 19, 2029 expiration, the ALAB put/call ratio based on open interest is 0.70 (229 puts vs 327 calls), and 0.75 based on today's volume. A ratio above 1 means more puts than calls.

What is ALAB's implied volatility?

At-the-money implied volatility for ALAB options expiring January 19, 2029 is about 77.5%, an annualized estimate of how much the market expects Astera Labs stock to move.

How many ALAB option expiration dates are there?

ALAB has 17 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.