Onto Innovation Inc. (ONTO) Put/Call Volume History
Put/call volume ratio compares the number of put options traded to call options traded. Extreme readings can signal shifts in market sentiment relative to recent norms.
Onto Innovation Inc. (ONTO) operates in the Technology sector, specifically the Semiconductors industry, with a market capitalization near $13.78B, listed on NYSE, employing roughly 1,551 people, carrying a beta of 1.70 to the broader market. Onto Innovation Inc. Led by Michael Plisinski, public since 2019-10-28.
Snapshot as of May 15, 2026.
- Spot Price
- $272.73
- Call Volume
- 265
- Put Volume
- 251
- Total Volume
- 516
- Put/Call Ratio
- 0.95
As of May 15, 2026, Onto Innovation Inc. (ONTO) traded 516 total options contracts. Volume split was 265 calls and 251 puts. Put/call volume ratio is 0.95. Elevated flow relative to the ticker's recent average can signal institutional positioning, pending news, earnings expectations, or hedging activity. Daily volume is the most responsive short-term gauge of changing demand.
How ONTO put/call volume history Data Feeds Strategy Selection
Strategy selection on Onto Innovation Inc. options does not derive from any single metric in isolation. The put/call volume history view above sits inside a broader read: ATM IV currently sits at 68.6% and dealer gamma exposure is negative, so dealer hedging amplifies directional moves. Combine the put/call volume history data here with the volatility-skew surface, dealer-gamma exposure, max-pain level, and upcoming-events calendar to build a positioning thesis. Risk-defined structures (credit spreads, debit spreads, iron condors) are usually safer than naked positions while the regime is uncertain; the data on this page anchors the inputs but does not by itself constitute a trade thesis.
Learn how options volume is reported and how to read the data →
Frequently asked ONTO put/call volume history questions
- How much ONTO options volume traded today?
- As of May 15, 2026, Onto Innovation Inc. (ONTO) traded 516 total options contracts, split as 265 calls and 251 puts. Volume measures today's flow only; standing inventory is captured by open interest, which reconciles after the close.
- What is the ONTO put/call volume ratio?
- As of May 15, 2026, the put/call volume ratio is 0.95. Equity-only PCR has three competing interpretations - sentiment-contrarian (extremes signal turning points), hedging-flow (high PCR can be portfolio insurance demand rather than bearish bets), and informed-flow (the volume signal carries short-horizon predictive content per Pan and Poteshman 2006). Resolving which frame applies requires context on whether the flow is opening or closing and which strikes carry the activity.
- Is ONTO options volume elevated?
- Elevated flow relative to the ONTO recent average is one of the strongest signals of institutional positioning, pending news, earnings expectations, or hedging activity. The most informative reads combine elevated volume with directional structure (single-leg or vertical), aggressive execution (at the ask or sweep), and an upcoming catalyst on the calendar.