Onto Innovation (ONTO) Options Chain

NYSE: ONTOIndustrialsIndustrial Machinery/ComponentsUSD

294.53+1.86 (+0.64%)

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

Expiration date

Expiration: Dec 17, 2027
Days to expiration: 432
Share price: $294.53
Put/call ratio (OI): 0.68
Put/call ratio (volume): 1.53
ATM implied volatility: 72.9%
Expected move: ±$233.59
Open interest (C / P): 302 / 205

ONTO options summary

The ONTO options chain for the December 17, 2027 expiration lists 25 call and 12 put contracts, with 432 days until expiration. Open interest stands at 302 calls and 205 puts, a put/call ratio of 0.68, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $290.00 strike is 72.9%, which implies the market expects a move of about ±$233.59 (79.3%) in Onto Innovation stock by expiration.

The most open interest sits at the $340.00 call (75 contracts) and the $340.00 put (69 contracts).

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

ONTO options chain · December 17, 2027

ONTO 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
1	—	86.9%	190.00	194.50	199.00	110.00	4.50	8.20	4.64	71.0%	1	13
—	—	—	—	—	—	150.00	11.90	15.80	13.60	66.5%	3	1
15	3	78.6%	181.08	145.50	149.50	180.00	—	—	—	—	—	—
1	1	77.6%	136.30	139.00	143.50	190.00	—	—	—	—	—	—
—	—	—	—	—	—	195.00	0.00	0.00	36.50	6.3%	—	0
10	1	77.3%	123.60	133.50	138.00	200.00	27.50	31.80	28.79	63.9%	10	11
0	—	—	183.73	0.00	0.00	210.00	31.50	36.00	29.36	63.7%	2	4
—	—	—	—	—	—	220.00	46.50	51.50	73.95	74.9%	4	2
—	—	—	—	—	—	230.00	40.00	45.00	52.20	63.0%	1	15
2	1	75.1%	117.30	112.20	117.00	240.00	—	—	—	—	—	—
3	2	74.5%	140.93	107.50	112.00	250.00	49.50	53.60	58.38	61.8%	1	2
4	1	74.2%	115.25	103.00	107.50	260.00	—	—	—	—	—	—
2	1	73.7%	100.25	98.50	103.00	270.00	0.00	0.00	64.68	1.6%	—	0
0	1	73.2%	102.30	94.00	99.00	280.00	65.00	70.00	66.03	60.8%	—	33
3	2	72.9%	98.00	90.50	94.50	290.00	—	—	—	—	—	—
ONTO $294.53
26	1	72.4%	87.40	86.50	90.50	300.00	—	—	—	—	—	—
1	1	72.5%	90.20	83.00	87.50	310.00	—	—	—	—	—	—
0	2	1.6%	117.25	0.00	0.00	320.00	—	—	—	—	—	—
73	2	71.8%	106.08	76.00	80.50	330.00	—	—	—	—	—	—
75	73	71.7%	88.20	73.00	77.50	340.00	101.50	106.50	95.60	58.5%	72	69
0	3	3.1%	130.94	0.00	0.00	350.00	—	—	—	—	—	—
0	—	3.1%	119.00	0.00	0.00	360.00	—	—	—	—	—	—
32	1	70.8%	51.00	61.50	66.00	380.00	151.00	155.50	173.26	74.0%	65	55
1	—	70.7%	52.00	59.00	63.50	390.00	—	—	—	—	—	—
32	1	70.5%	49.50	56.50	61.00	400.00	—	—	—	—	—	—
3	1	70.4%	54.00	52.00	57.00	420.00	—	—	—	—	—	—
1	1	70.2%	65.35	50.00	54.50	430.00	—	—	—	—	—	—
4	2	70.3%	57.90	48.00	53.00	440.00	—	—	—	—	—	—
13	3	70.1%	69.50	46.00	51.00	450.00	—	—	—	—	—	—

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 ONTO put/call ratio?

For the December 17, 2027 expiration, the ONTO put/call ratio based on open interest is 0.68 (205 puts vs 302 calls), and 1.53 based on today's volume. A ratio above 1 means more puts than calls.

What is ONTO's implied volatility?

At-the-money implied volatility for ONTO options expiring December 17, 2027 is about 72.9%, an annualized estimate of how much the market expects Onto Innovation stock to move.

How many ONTO option expiration dates are there?

ONTO has 8 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.