Zscaler (ZS) Options Chain

NASDAQ: ZSTechnologyEDP ServicesUSD

233.73+16.92 (+7.80%)

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

Expiration date

Expiration: Oct 16, 2026
Days to expiration: 5
Share price: $233.73
Put/call ratio (OI): 0.63
Put/call ratio (volume): 0.69
ATM implied volatility: 52.8%
Expected move: ±$14.44
Open interest (C / P): 16.13K / 10.13K

ZS options summary

The ZS options chain for the October 16, 2026 expiration lists 47 call and 42 put contracts, with 5 days until expiration. Open interest stands at 16,132 calls and 10,131 puts, a put/call ratio of 0.63, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $232.50 strike is 52.8%, which implies the market expects a move of about ±$14.44 (6.2%) in Zscaler stock by expiration.

The most open interest sits at the $220.00 call (3.40K contracts) and the $180.00 put (1.23K contracts).

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

ZS options chain · October 16, 2026

ZS 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
3	1	242.2%	111.51	132.15	135.40	100.00	0.00	1.30	0.05	341.0%	1	2
—	—	—	—	—	—	105.00	0.00	2.13	0.12	352.3%	2	3
—	—	—	—	—	—	110.00	0.00	2.13	0.07	334.0%	1	30
—	—	—	99.05	—	—	115.00	0.00	2.13	0.22	316.5%	22	23
37	1	225.0%	90.05	112.15	115.65	120.00	0.00	2.13	0.09	299.7%	10	130
—	—	—	—	—	—	125.00	0.00	2.13	0.07	283.6%	3	86
2	1	179.7%	73.20	102.15	105.45	130.00	0.00	2.13	0.05	268.1%	10	126
1	1	160.9%	60.94	97.20	100.35	135.00	0.00	0.06	0.12	154.7%	1	100
4	1	158.6%	64.28	92.20	95.40	140.00	0.00	1.10	0.06	211.3%	5	472
6	1	222.7%	65.00	87.60	89.75	145.00	0.00	2.13	0.01	224.6%	2	128
43	1	121.9%	80.71	82.75	84.75	150.00	0.00	0.06	0.04	127.3%	6	582
37	1	196.0%	75.74	77.30	79.75	155.00	0.00	0.46	0.01	151.6%	3	461
69	1	183.3%	65.62	72.70	74.75	160.00	0.00	0.85	0.01	155.6%	1	625
118	1	97.7%	51.05	67.70	69.80	165.00	0.00	0.07	0.03	103.1%	14	368
417	7	98.0%	62.00	62.60	64.95	170.00	0.00	0.02	0.02	84.4%	7	389
—	—	—	—	—	—	172.50	0.00	0.05	0.03	88.3%	11	116
347	8	151.4%	56.17	57.35	59.90	175.00	0.00	0.07	0.04	87.5%	34	683
—	—	—	31.44	—	—	177.50	0.00	0.36	0.09	102.9%	2	147
393	11	136.6%	52.72	52.60	54.80	180.00	0.00	0.30	0.01	95.7%	425	1,226
3	2	134.9%	43.33	49.70	52.45	182.50	0.00	0.94	0.10	110.3%	25	15
661	7	81.5%	46.13	47.75	49.90	185.00	0.01	0.20	0.02	82.6%	21	275
11	5	119.3%	30.50	44.80	47.30	187.50	0.00	0.28	0.04	81.6%	12	34
527	13	118.5%	40.20	42.20	45.00	190.00	0.01	0.10	0.06	68.2%	59	658
9	1	111.5%	29.60	39.75	42.45	192.50	0.01	0.53	0.07	81.3%	23	88
205	54	84.2%	38.10	38.20	40.15	195.00	0.00	0.33	0.07	70.7%	62	985
425	48	101.1%	34.45	34.65	37.50	197.50	0.01	0.38	0.13	68.3%	30	162
1,843	61	62.5%	33.50	32.70	35.10	200.00	0.09	0.20	0.13	60.9%	683	486
108	6	66.2%	27.92	30.55	32.60	202.50	0.10	0.28	0.22	59.4%	4	126
159	116	64.0%	26.54	28.10	30.20	205.00	0.13	0.34	0.17	57.1%	93	288
148	26	57.7%	20.05	25.35	27.85	207.50	0.10	0.63	0.36	57.5%	163	109
1,317	228	75.8%	23.10	22.75	25.20	210.00	0.19	0.46	0.42	51.6%	605	709
155	11	58.7%	19.67	21.00	23.10	212.50	0.33	1.21	0.71	57.7%	53	83
697	184	69.5%	18.10	17.85	20.60	215.00	0.80	0.90	0.85	53.8%	163	316
139	50	53.1%	16.36	16.40	18.35	217.50	0.97	1.34	1.16	53.3%	156	39
3,401	384	55.5%	15.00	14.70	16.30	220.00	1.09	2.00	1.09	52.6%	513	34
127	194	51.0%	12.05	12.20	14.15	222.50	—	—	8.55	—	—	—
534	331	53.7%	10.64	10.80	12.40	225.00	2.53	3.00	2.87	52.6%	183	8
17	66	53.0%	9.39	9.10	10.60	227.50	—	—	—	—	—	—
1,530	1,042	55.4%	8.45	8.20	9.00	230.00	4.25	4.75	4.55	52.2%	608	12
60	199	52.8%	6.65	6.30	7.55	232.50	—	—	—	—	—	—
ZS $233.73
74	1,081	54.6%	5.92	5.65	6.20	235.00	—	—	—	—	—	—
—	—	—	0.95	—	—	237.50	—	—	—	—	—	—
560	466	55.1%	4.10	3.75	4.25	240.00	9.40	11.00	10.99	54.5%	2	2
—	—	—	0.72	—	—	242.50	—	—	—	—	—	—
425	646	55.9%	2.58	2.40	2.87	245.00	—	—	—	—	—	—
—	—	—	0.27	—	—	247.50	—	—	—	—	—	—
437	246	55.8%	1.60	1.45	1.77	250.00	16.85	19.50	47.00	59.4%	2	4
—	—	—	0.27	—	—	255.00	—	—	—	—	—	—
203	167	55.3%	0.54	0.35	0.67	260.00	25.85	28.40	91.50	62.7%	1	0
80	126	56.1%	0.20	0.05	0.25	270.00	35.55	38.00	80.50	69.7%	—	1
800	47	57.6%	0.06	0.03	0.06	280.00	—	—	—	—	—	—

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 ZS put/call ratio?

For the October 16, 2026 expiration, the ZS put/call ratio based on open interest is 0.63 (10,131 puts vs 16,132 calls), and 0.69 based on today's volume. A ratio above 1 means more puts than calls.

What is ZS's implied volatility?

At-the-money implied volatility for ZS options expiring October 16, 2026 is about 52.8%, an annualized estimate of how much the market expects Zscaler stock to move.

How many ZS option expiration dates are there?

ZS has 16 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.