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: May 21, 2027
Days to expiration: 223
Share price: $233.73
Put/call ratio (OI): 0.86
Put/call ratio (volume): 6.26
ATM implied volatility: 61.2%
Expected move: ±$111.81
Open interest (C / P): 313 / 269

ZS options summary

The ZS options chain for the May 21, 2027 expiration lists 21 call and 15 put contracts, with 223 days until expiration. Open interest stands at 313 calls and 269 puts, a put/call ratio of 0.86, which is fairly balanced between calls and puts. At-the-money implied volatility near the $230.00 strike is 61.2%, which implies the market expects a move of about ±$111.81 (47.8%) in Zscaler stock by expiration.

The most open interest sits at the $200.00 call (154 contracts) and the $150.00 put (180 contracts).

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

ZS options chain · May 21, 2027

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
—	—	—	—	—	—	105.00	0.03	2.34	3.28	58.8%	3	3
—	—	—	—	—	—	110.00	1.23	2.75	3.66	62.0%	1	1
0	2	75.7%	89.10	118.35	121.75	120.00	—	—	—	—	—	—
1	1	73.0%	83.99	114.00	116.70	125.00	2.85	3.65	6.20	59.5%	1	1
—	—	—	—	—	—	130.00	3.55	4.85	4.08	60.5%	1	1
0	4	70.3%	82.30	101.40	104.55	140.00	4.85	6.65	7.30	59.7%	1	4
—	—	—	—	—	—	145.00	5.75	7.55	10.48	59.3%	1	2
2	2	69.5%	78.95	94.15	96.65	150.00	6.35	8.55	13.60	58.4%	210	180
—	—	—	—	—	—	155.00	7.25	9.60	10.00	57.8%	3	5
47	2	67.0%	85.43	85.90	88.95	160.00	—	—	—	—	—	—
—	—	—	—	—	—	165.00	9.65	11.40	17.70	56.5%	21	21
—	—	—	62.59	—	—	170.00	11.05	13.15	14.26	56.6%	1	4
1	1	65.3%	48.73	75.50	78.20	175.00	—	—	—	—	—	—
4	1	64.5%	48.00	71.95	74.85	180.00	13.65	16.05	23.00	55.5%	10	15
2	1	64.4%	46.40	69.05	71.65	185.00	—	—	—	—	—	—
1	1	64.0%	65.51	66.05	68.40	190.00	17.05	19.85	22.65	55.3%	1	4
4	2	63.8%	62.00	63.10	65.55	195.00	—	—	—	—	—	—
154	5	62.8%	59.60	59.55	62.60	200.00	21.15	23.70	26.65	54.9%	3	26
19	2	62.5%	45.20	54.45	57.10	210.00	—	—	33.05	—	—	—
40	1	62.2%	43.12	49.65	52.05	220.00	—	—	—	—	—	—
12	2	61.2%	42.45	44.30	47.35	230.00	—	—	—	—	—	—
ZS $233.73
4	1	60.6%	31.05	40.00	42.70	240.00	—	—	—	—	—	—
5	9	60.5%	37.61	36.45	38.75	250.00	—	—	—	—	—	—
2	1	60.4%	32.90	32.55	35.80	260.00	—	—	—	—	—	—
2	1	59.6%	28.60	29.30	31.70	270.00	—	—	—	—	—	—
1	2	60.0%	26.87	26.80	29.20	280.00	—	—	—	—	—	—
12	1	60.2%	21.15	22.65	23.90	300.00	81.90	84.10	111.70	50.7%	6	2

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 May 21, 2027 expiration, the ZS put/call ratio based on open interest is 0.86 (269 puts vs 313 calls), and 6.26 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 May 21, 2027 is about 61.2%, 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.