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: Sep 17, 2027
Days to expiration: 340
Share price: $342.21
Put/call ratio (OI): 0.82
Put/call ratio (volume): 1.17
ATM implied volatility: 78.8%
Expected move: ±$260.18
Open interest (C / P): 6.05K / 4.97K

ALAB options summary

The ALAB options chain for the September 17, 2027 expiration lists 68 call and 60 put contracts, with 340 days until expiration. Open interest stands at 6,047 calls and 4,968 puts, a put/call ratio of 0.82, which is fairly balanced between calls and puts. At-the-money implied volatility near the $340.00 strike is 78.8%, which implies the market expects a move of about ±$260.18 (76.0%) in Astera Labs stock by expiration.

The most open interest sits at the $300.00 call (1.35K contracts) and the $150.00 put (765 contracts).

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

ALAB options chain · September 17, 2027

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
0	6	—	166.00	0.00	0.00	95.00	2.00	6.65	4.10	88.9%	1	184
146	1	101.1%	283.00	246.00	255.00	100.00	2.66	4.05	5.20	80.8%	8	73
162	91	—	315.45	183.00	191.00	105.00	0.00	0.00	10.05	25.0%	1	0
0	500	—	228.23	0.00	0.00	110.00	1.50	7.55	6.65	80.2%	8	26
92	1	96.5%	259.00	233.00	242.00	115.00	0.00	0.00	18.20	25.0%	1	0
51	1	95.8%	286.00	229.00	238.00	120.00	0.29	8.45	5.00	73.9%	3	28
0	2	—	172.16	0.00	0.00	125.00	0.00	0.00	17.40	25.0%	4	0
0	1	—	180.00	0.00	0.00	130.00	2.93	9.95	14.50	75.9%	—	7
1	1	92.0%	194.05	217.00	224.80	135.00	0.00	0.00	25.00	25.0%	21	0
0	1	—	222.00	0.00	0.00	140.00	4.00	13.00	14.50	76.5%	2	94
6	1	92.5%	233.11	210.00	218.00	145.00	8.35	10.80	10.20	76.6%	1	25
1,004	2	89.9%	145.62	206.00	212.45	150.00	6.00	11.30	11.00	71.8%	1	765
6	10	91.2%	135.50	202.00	211.00	155.00	9.80	14.10	11.50	76.8%	2	11
0	1	—	200.00	0.00	0.00	160.00	8.00	18.00	9.25	76.4%	1	7
22	2	89.7%	194.25	195.00	203.00	165.00	9.00	19.00	15.20	75.8%	1	108
0	1	—	155.99	0.00	0.00	170.00	10.00	20.00	16.70	75.1%	1	3
1	1	88.9%	206.08	188.00	196.00	175.00	15.65	19.90	18.05	77.5%	30	108
3	2	88.0%	184.48	184.00	192.50	180.00	15.85	21.05	15.15	76.1%	1	104
6	1	87.6%	140.09	181.00	188.75	185.00	17.50	22.50	21.50	76.0%	2	90
31	3	87.9%	121.50	178.00	186.00	190.00	16.00	26.00	20.90	75.1%	1	38
7	2	85.8%	151.20	174.00	181.00	195.00	21.65	23.75	19.50	75.2%	1	5
36	3	87.1%	173.95	171.00	180.00	200.00	20.70	28.15	23.70	75.1%	235	93
10	1	85.5%	106.50	165.00	172.00	210.00	25.10	30.00	23.70	74.4%	1	327
10	2	85.1%	175.00	159.00	166.00	220.00	30.50	33.20	26.05	75.0%	10	26
650	11	84.4%	156.04	153.00	160.00	230.00	32.10	38.75	33.70	74.3%	1	140
54	4	84.6%	177.97	148.00	155.00	240.00	38.50	40.95	38.80	74.3%	2	131
218	1	84.6%	145.95	143.00	150.00	250.00	39.00	46.20	44.10	72.5%	11	19
10	2	85.4%	165.02	138.00	147.00	260.00	47.35	50.10	49.00	73.9%	2	90
27	8	84.0%	141.92	133.00	140.00	270.00	49.60	55.25	46.55	72.7%	10	29
27	1	83.5%	84.26	128.00	135.00	280.00	54.00	63.00	59.60	73.5%	6	584
22	1	83.7%	146.55	124.00	130.80	290.00	61.10	66.50	61.55	73.4%	100	120
1,347	1	83.9%	125.00	120.00	127.00	300.00	67.85	73.05	67.15	74.4%	93	312
42	11	83.9%	67.68	116.00	123.00	310.00	73.50	77.25	74.00	73.6%	1	31
70	2	84.6%	130.10	112.00	121.00	320.00	77.00	85.00	73.50	73.3%	2	446
93	2	83.4%	117.60	108.00	115.00	330.00	83.00	89.75	110.80	72.8%	10	21
26	1	83.5%	139.00	104.00	112.10	340.00	91.45	97.00	92.70	74.0%	4	14
ALAB $342.21
59	1	83.5%	105.80	101.35	108.00	350.00	97.75	103.50	138.15	74.0%	5	15
16	3	84.0%	109.00	97.00	107.00	360.00	103.95	110.00	103.50	73.8%	1	12
29	3	83.3%	123.83	94.00	102.00	370.00	108.00	117.00	105.40	72.9%	1	2
326	2	83.3%	104.28	91.00	98.85	380.00	115.00	123.00	164.00	72.6%	10	14
29	8	83.7%	89.10	88.00	97.00	390.00	0.00	0.00	163.55	—	5	0
76	3	83.5%	94.59	86.20	92.70	400.00	128.25	137.00	159.00	72.3%	2	20
28	6	83.7%	120.00	83.00	91.00	410.00	0.00	0.00	189.35	—	20	0
48	1	83.1%	94.20	80.00	87.25	420.00	145.00	150.05	136.30	72.5%	1	7
6	1	83.4%	116.39	78.00	85.00	430.00	151.35	158.75	137.70	72.6%	301	251
11	1	83.7%	76.30	76.00	83.00	440.00	157.00	166.00	145.60	71.7%	3	4
432	1	83.3%	100.00	73.00	80.25	450.00	166.65	173.00	157.35	72.2%	2	5
8	1	84.1%	94.05	71.00	80.00	460.00	—	—	—	—	—	—
2	2	84.3%	80.64	69.00	78.00	470.00	229.00	238.00	189.30	108.9%	6	4
3	1	83.5%	89.50	67.00	73.75	480.00	237.80	247.00	196.15	109.6%	6	4
3	4	84.0%	66.70	65.80	72.35	490.00	195.00	204.00	187.50	70.8%	12	545
129	3	84.3%	73.95	63.00	72.00	500.00	255.00	264.00	209.85	110.4%	2	2
8	2	73.9%	166.11	47.00	57.00	510.00	263.00	272.00	217.35	110.3%	—	1
3	1	84.7%	91.00	59.65	69.00	520.00	271.00	281.00	224.25	110.5%	—	3
15	1	84.3%	79.50	58.00	66.00	530.00	280.00	289.00	230.50	110.7%	—	3
3	1	84.2%	35.15	56.55	63.85	540.00	289.00	298.00	290.00	111.2%	1	3
40	5	84.1%	86.77	54.00	63.00	550.00	298.00	307.00	246.05	111.7%	—	4
—	—	—	—	—	—	560.00	306.00	316.00	252.15	111.8%	—	3
1	2	84.7%	54.62	52.75	59.55	570.00	315.80	325.00	259.50	112.5%	—	3
2	1	84.5%	51.62	51.00	57.70	580.00	—	—	—	—	—	—
168	4	84.4%	49.60	50.35	55.25	590.00	334.00	341.00	294.90	112.7%	2	3
60	14	84.5%	66.89	48.25	54.80	600.00	—	—	—	—	—	—
8	16	85.1%	61.00	47.00	55.00	610.00	—	—	—	—	—	—
9	2	84.6%	65.75	45.00	53.00	620.00	361.00	369.00	306.95	114.0%	—	1
24	37	85.2%	56.90	44.00	53.00	630.00	—	—	—	—	—	—
3	3	78.6%	98.07	33.35	43.00	650.00	—	—	—	—	—	—
61	2	85.3%	56.70	40.00	48.00	670.00	—	—	—	—	—	—
9	2	85.8%	65.40	39.00	48.00	680.00	—	—	—	—	—	—
248	4	85.2%	51.35	37.10	44.35	700.00	—	—	—	—	—	—

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 September 17, 2027 expiration, the ALAB put/call ratio based on open interest is 0.82 (4,968 puts vs 6,047 calls), and 1.17 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 September 17, 2027 is about 78.8%, 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.