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: Oct 16, 2026
Days to expiration: 5
Share price: $342.21
Put/call ratio (OI): 0.71
Put/call ratio (volume): 0.60
ATM implied volatility: 78.5%
Expected move: ±$31.46
Open interest (C / P): 21.98K / 15.59K

ALAB options summary

The ALAB options chain for the October 16, 2026 expiration lists 108 call and 105 put contracts, with 5 days until expiration. Open interest stands at 21,976 calls and 15,590 puts, a put/call ratio of 0.71, which is fairly balanced between calls and puts. At-the-money implied volatility near the $342.50 strike is 78.5%, which implies the market expects a move of about ±$31.46 (9.2%) in Astera Labs stock by expiration.

The most open interest sits at the $390.00 call (1.41K contracts) and the $300.00 put (967 contracts).

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

ALAB options chain · October 16, 2026

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	1	—	282.10	0.00	0.00	55.00	0.00	0.08	0.03	487.5%	5	284
73	1	550.8%	215.75	278.70	286.15	60.00	0.00	0.01	0.01	393.8%	12	379
3	2	—	195.85	241.25	250.65	65.00	0.00	0.01	0.01	375.0%	32	242
0	—	—	65.40	0.00	0.00	70.00	0.00	0.01	0.01	362.5%	5	36
3	2	—	247.34	231.35	240.65	75.00	0.00	0.01	0.01	343.8%	117	96
2	1	938.0%	310.10	268.10	275.75	80.00	0.00	0.01	0.01	325.0%	1	24
20	2	448.1%	292.80	253.75	261.15	85.00	0.00	0.01	0.01	312.5%	16	16
2	2	—	172.15	216.40	225.75	90.00	0.00	0.01	0.01	300.0%	5	38
3	3	—	82.95	140.15	143.90	95.00	0.00	0.01	0.01	287.5%	7	33
29	1	819.7%	282.65	249.00	256.55	100.00	0.00	0.01	0.01	281.3%	3	36
8	2	387.1%	284.40	233.75	241.20	105.00	0.00	0.28	0.01	359.4%	21	20
6	1	—	293.13	216.30	223.85	110.00	0.00	0.27	0.01	344.5%	19	33
2	2	753.8%	256.40	235.00	242.45	115.00	0.00	0.28	0.01	332.8%	34	77
55	1	345.3%	230.80	218.75	226.20	120.00	0.00	0.28	0.01	320.3%	23	45
29	2	332.8%	244.85	213.75	221.20	125.00	0.00	0.27	0.01	307.4%	10	403
17	1	320.5%	242.50	208.75	216.20	130.00	0.00	0.28	0.01	297.3%	2	33
18	5	467.4%	147.00	203.75	210.45	135.00	0.00	0.05	0.03	242.2%	3	269
55	38	—	199.82	167.55	175.75	140.00	0.00	3.05	0.01	387.7%	3	28
17	4	289.8%	224.40	193.80	201.20	145.00	0.00	0.07	0.02	231.3%	11	35
95	1	272.7%	151.29	188.65	196.25	150.00	0.00	4.30	0.03	385.2%	18	341
45	1	268.9%	211.63	183.80	191.20	155.00	0.00	0.05	0.05	207.8%	9	87
60	5	259.0%	225.00	178.80	186.20	160.00	0.00	0.20	0.03	228.1%	15	43
26	1	251.9%	215.40	173.80	181.25	165.00	0.00	0.29	0.03	228.9%	4	55
32	20	242.6%	160.79	168.80	176.25	170.00	0.00	0.09	0.05	194.5%	16	307
19	2	230.9%	203.05	163.80	171.20	175.00	0.00	2.04	0.14	279.0%	3	81
117	10	224.4%	79.40	158.80	166.25	180.00	0.00	0.05	0.04	170.3%	7	333
41	1	321.3%	181.41	153.80	160.25	185.00	0.00	0.05	0.05	163.3%	4	286
0	2	—	147.26	0.00	0.00	190.00	0.00	0.05	0.05	156.3%	6	109
24	3	201.0%	183.20	143.85	151.25	195.00	0.00	0.20	0.02	172.7%	15	112
88	5	290.0%	148.25	138.85	145.40	200.00	0.00	0.09	0.05	152.3%	18	477
1,068	3	247.0%	126.05	128.85	134.45	210.00	0.00	0.66	0.06	176.4%	20	221
66	1	245.0%	173.00	118.85	125.30	220.00	0.00	0.10	0.07	128.1%	20	273
58	2	224.9%	114.42	108.90	115.30	230.00	0.00	0.12	0.05	118.8%	2	859
—	—	—	—	—	—	235.00	0.00	0.15	0.15	115.6%	2	11
480	2	195.7%	121.85	98.75	104.75	240.00	0.00	0.18	0.05	112.1%	1	339
1	—	131.7%	111.25	93.95	101.35	245.00	0.00	0.20	0.10	107.4%	2	27
92	1	103.3%	88.72	89.40	95.25	250.00	0.01	0.20	0.14	102.2%	34	257
1	1	115.7%	123.65	84.00	91.20	255.00	0.05	0.20	0.08	98.4%	14	34
270	1	108.0%	72.09	78.85	86.30	260.00	0.10	0.28	0.15	98.0%	8	362
—	—	—	—	—	—	265.00	0.00	0.78	0.19	102.6%	8	54
608	8	151.8%	71.45	68.95	75.40	270.00	0.10	0.40	0.24	89.7%	506	408
27	3	69.7%	76.20	64.20	70.35	275.00	0.00	0.88	0.37	91.6%	13	83
—	—	—	—	—	—	277.50	0.00	0.91	0.77	89.0%	1	7
358	2	94.6%	53.40	59.15	66.80	280.00	0.35	0.51	0.45	84.9%	75	930
46	34	53.1%	81.20	56.70	62.75	282.50	0.00	1.28	0.59	87.9%	4	51
24	1	79.6%	53.00	54.45	60.90	285.00	0.00	1.20	0.69	83.5%	12	116
5	1	90.5%	70.55	52.05	59.50	287.50	0.10	1.01	0.76	79.0%	47	6
316	1	92.2%	105.42	50.75	56.40	290.00	0.72	0.91	0.80	82.0%	60	799
—	—	—	—	—	—	292.50	0.68	1.29	1.14	81.9%	68	35
18	18	76.1%	74.42	44.95	51.20	295.00	1.01	1.47	1.11	82.8%	93	123
—	—	—	—	—	—	297.50	1.07	1.65	1.30	81.0%	46	33
223	42	83.6%	43.25	41.15	46.90	300.00	1.48	1.92	1.83	82.1%	234	967
2	—	66.7%	64.20	38.00	43.25	302.50	0.40	2.38	2.06	74.0%	59	64
—	—	—	—	—	—	305.00	1.80	2.60	2.44	80.3%	149	120
1	—	88.0%	67.20	35.95	40.20	307.50	0.70	4.05	2.79	78.2%	34	44
488	7	71.8%	33.00	31.55	37.20	310.00	2.62	3.40	2.86	80.3%	1,009	291
3	1	82.0%	62.23	29.45	37.35	312.50	2.96	3.85	3.45	79.5%	77	27
14	4	76.4%	31.00	27.45	34.10	315.00	3.40	4.30	3.96	78.8%	118	105
2	43	83.5%	23.15	26.20	33.30	317.50	4.05	5.10	4.45	80.0%	44	47
388	68	81.3%	26.55	23.60	31.65	320.00	4.70	5.30	4.90	78.3%	376	331
14	33	82.2%	21.50	23.15	28.80	322.50	5.00	6.30	6.54	77.9%	45	64
28	206	81.6%	22.70	21.95	26.40	325.00	5.95	6.90	6.62	78.0%	387	380
357	180	78.1%	19.05	19.05	21.75	330.00	7.50	9.20	8.50	79.1%	283	338
119	71	79.0%	18.00	16.25	18.90	335.00	9.70	11.40	10.68	80.0%	119	356
887	113	77.7%	13.92	13.50	15.85	340.00	11.95	13.85	12.50	80.2%	139	274
ALAB $342.21
11	125	77.4%	14.00	12.35	14.45	342.50	13.00	15.20	13.80	79.7%	53	36
155	180	78.4%	13.00	11.30	13.55	345.00	14.40	16.60	16.06	80.0%	37	204
16	89	78.3%	11.67	10.30	12.35	347.50	15.85	20.85	16.45	88.3%	202	22
760	247	77.5%	10.80	9.35	11.00	350.00	17.10	19.95	20.35	80.8%	122	438
54	2,784	79.3%	9.75	8.50	10.55	352.50	18.60	21.50	21.02	80.7%	16	54
270	122	80.2%	8.76	7.90	9.70	355.00	20.35	22.90	21.57	80.4%	45	152
74	118	79.7%	8.00	7.20	8.60	357.50	21.90	25.05	24.85	81.5%	34	249
792	133	80.9%	7.33	6.75	7.90	360.00	23.10	26.75	25.94	79.7%	12	380
142	8	80.8%	5.50	5.85	7.35	362.50	25.35	28.75	27.55	81.8%	25	78
311	1,847	83.0%	6.00	6.00	6.55	365.00	26.65	31.10	29.18	81.7%	28	238
24	20	78.0%	5.00	3.80	6.10	367.50	27.45	34.80	30.63	84.2%	13	56
732	1,384	80.8%	5.00	4.30	5.30	370.00	29.05	34.70	34.70	75.5%	7	113
87	65	88.8%	3.70	3.00	7.75	372.50	31.50	37.15	45.88	78.8%	8	24
457	69	83.9%	4.06	3.80	4.65	375.00	32.75	40.65	35.92	81.4%	4	64
74	21	84.8%	4.26	3.10	4.70	377.50	35.80	42.60	44.15	84.9%	29	52
613	73	83.7%	3.39	3.00	3.75	380.00	37.70	44.70	41.60	84.0%	65	69
41	37	86.0%	2.75	2.47	4.05	382.50	40.20	46.85	44.77	85.8%	1	8
32	21	83.9%	2.00	2.05	2.75	387.50	43.60	49.70	22.00	71.7%	5	6
1,408	151	83.9%	2.15	1.78	2.49	390.00	45.85	53.50	50.71	81.0%	3	146
1,298	376	85.2%	1.40	1.14	1.64	400.00	55.20	62.60	56.99	80.9%	2	108
379	189	93.5%	0.81	0.52	2.07	410.00	66.10	72.10	50.64	93.8%	2	28
1,172	94	92.7%	0.50	0.40	1.15	420.00	75.05	81.80	62.67	89.3%	135	104
200	13	114.0%	0.41	0.05	2.79	430.00	85.80	91.60	71.93	104.1%	135	80
94	1	91.2%	0.25	0.01	0.50	440.00	96.25	101.50	83.04	116.1%	2	9
889	29	95.7%	0.18	0.10	0.33	450.00	105.45	111.40	189.35	112.7%	1	2
206	11	120.5%	0.13	0.00	1.30	460.00	181.70	188.30	127.25	586.9%	2	46
378	20	99.8%	0.40	0.00	0.22	470.00	126.30	131.35	102.00	138.2%	6	0
151	13	142.8%	0.07	0.00	1.87	480.00	133.90	141.30	212.32	187.7%	1	0
121	3	154.6%	0.49	0.00	2.25	490.00	143.85	151.45	146.20	197.8%	1	4
1,069	10	142.7%	0.05	0.00	1.05	500.00	154.90	161.30	103.50	132.4%	10	0
246	3	127.5%	0.04	0.00	0.33	510.00	165.20	171.30	222.80	145.9%	1	0
47	1	197.0%	0.23	0.00	4.30	520.00	175.75	181.30	134.00	162.8%	2	0
124	10	136.5%	0.05	0.01	0.29	530.00	250.30	256.85	182.15	657.0%	8	5
25	1	175.2%	0.01	0.00	1.50	540.00	259.60	266.75	199.60	664.5%	8	11
154	2	159.9%	0.03	0.00	0.62	550.00	270.15	276.70	207.50	675.5%	2	2
93	20	184.5%	0.84	0.00	1.40	560.00	214.90	221.30	206.95	165.0%	1	2
88	7	194.6%	0.01	0.00	1.65	570.00	289.50	296.60	213.70	691.6%	—	6
48	1	129.7%	0.05	0.00	0.03	580.00	—	—	—	—	—	—
21	2	167.8%	0.01	0.00	0.35	590.00	309.45	316.60	257.15	708.8%	—	0
55	51	137.5%	0.01	0.00	0.03	600.00	254.90	261.30	263.15	184.3%	—	0
873	1	149.2%	0.01	0.00	0.06	610.00	264.90	271.30	285.79	188.9%	8	0
269	6	147.7%	0.03	0.00	0.04	620.00	—	—	—	—	—	—
38	35	137.5%	0.01	0.00	0.01	630.00	—	—	—	—	—	—
23	2	184.0%	0.07	0.00	0.27	640.00	—	—	—	—	—	—
84	7	186.3%	0.01	0.00	0.25	650.00	—	—	—	—	—	—
21	9	189.4%	0.01	0.00	0.24	660.00	—	—	—	—	—	—
23	1	195.5%	0.07	0.00	0.27	670.00	—	—	—	—	—	—
469	1	271.8%	0.07	0.00	3.05	680.00	—	—	—	—	—	—
412	5	170.3%	0.03	0.00	0.03	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 October 16, 2026 expiration, the ALAB put/call ratio based on open interest is 0.71 (15,590 puts vs 21,976 calls), and 0.60 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 October 16, 2026 is about 78.5%, 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.