Orin
ONTONYSE·Semiconductors

Onto Innovation Inc. ONTO

Market cap $14.2BP/E 104.4× trailingGross margin 50.4%Reports Thu 5 Nov, after the close
$284.77
+5.04 (+1.80%)live 11:25 ET
52-wk $118.97 – $386.46
Watch
Orin's take
0.62conviction · moderate
Refreshed 26 Aug · take v4. A new filing or a print queues the next refresh.

Onto Innovation remains a hold after pulling back below its 50-day MA to $291.62, as the AI-driven advanced packaging thesis is credible — backed by a record $1.1B-plus backlog, raised H2 guidance, BlackRock's new 11.07% position, and the $720M Rigaku stake opening X-ray process control — but FY2025 results show the earnings power has yet to materialize, with EPS collapsing to $2.78 from $4.06 and operating margin compressing to 13.2% from 18.95%. At 108.8x trailing earnings, a 405% premium to the peer median PE of 21.5x, the stock already prices in a margin recovery that the income statement has not yet delivered, and the negative MACD histogram plus sub-50 RSI signal waning near-term momentum.

The risk/reward is balanced enough to wait for proof of operating leverage before committing new capital.

What could go wrong

  • Valuation compression. At 108.8x trailing PE and 55.6x EV/EBITDA versus peer medians of 21.5x and 15.6x respectively, any guidance cut or margin miss could trigger a sharp de-rating.
  • Margin recovery stalls. FY2025 operating margin fell to 13.2% from 18.95% in FY2024 while gross margin slipped to 49.7% from 52.2%; if the backlog conversion does not restore margins, the premium multiple is unjustified.
  • Insider selling persists. Over 24 months insiders net sold $33.0M in value across 120 transactions, with the most recent sale on 2026-08-21 at $302.30 — hardly a confidence signal at these levels.
  • Semiconductor cycle risk. Revenue growth was only 1.8% in FY2025 after 21% in FY2024, and a downturn in advanced packaging or memory capex could pressure the record backlog before it converts.

What would change my mind

Margin inflection confirmed. Next quarterly report shows operating margin recovering above 16% with revenue growth reaccelerating past 20% YoYbullish
Guidance cut or backlog erosion. Company lowers revenue or earnings guidance, or backlog falls below $1Bbearish
Sustained technical breakdown. Stock closes below the 200-day MA of $235.60 on heavy volumebearish
Meaningful insider cluster buying. Multiple insiders purchase shares on the open market at current prices within a 30-day windowbullish

Where this comes from: FMP annual fundamentals, fiscal year ended 2026-01-03 · derived_metrics, FY2025 vs FY2024 · peer_relative composite · technicals as of 2026-08-25. Orin's read on ONTO; not advice.

Twelve months actual closes to 2026-09-24 · actual filings

Sept 25Nov 25Jan 26Mar 26May 26Jul 26

50-day average 200-day average · volume below

FormFiledWhat it saysRead
8-K10 AugOnto Innovation Inc. completed the acquisition of a 27% minority equity stake in Rigaku Holdings Corporation for approximately $720 million on August 10, 2026. This transaction…read
10-Q6 AugRevenue for the three months ended June 30, 2026, was $343.1 million, a 35.3% increase year-over-year from $253.6 million for the three months ended June 28, 2025.read
8-K6 AugOnto Innovation Inc. reported record quarterly revenue of $343.1 million for the second quarter ended June 30, 2026, a 35.3% increase year-over-year. This performance exceeded the…read
8-K21 MayOnto Innovation Inc. issued $1.7 billion in aggregate principal amount of 0.00% Convertible Senior Notes due 2031 on May 21, 2026. The notes are senior, unsecured obligations…read
8-K20 MayOnto Innovation Inc. held its 2026 Annual Meeting on May 20, 2026, where stockholders elected seven directors, ratified Ernst & Young LLP as the independent registered public…read
8-K18 MayOnto Innovation Inc. plans to commence a private offering of $1,100,000,000 aggregate principal amount of convertible senior notes due 2031. The offering is subject to market…read
10-Q5 MayRevenue for the three months ended March 31, 2026, was $291.9 million, an increase of 9.5% year-over-year from $266.6 million for the three months ended March 29, 2025.read
8-K5 MayOnto Innovation Inc. reported its fiscal first quarter results for the period ended March 31, 2026, on May 5, 2026. This filing, under Item 2.02, includes the company's earnings…read

Largest holders · 13F Q2 2026

Money flow
FilerPositionOf fund
Vanguard Portfolio Management$1.0B0.0% of fund
Vanguard Capital Management$850.7M0.0% of fund
State Street$588.1M0.0% of fund
Geode Capital Management$542.7M0.0% of fund
Invesco$511.6M0.0% of fund
Point72 Asset Management, L.P$367.9M0.4% of fund

91 filers · quarter ended Q2 2026 · positions, not flows

Insiders, last 24 months: 118 Form 4 filings, net −$33.8M. Of the 50 on hand, 0 were open-market purchases and 1 a sale— the rest are grants, option exercises and tax withholding.

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Where it trades

· Technology
MetricNowOwn medianSector
P/E104.4×—53.3×
EV/EBITDA53.4×——
P/S12.42×——
P/B7.2×——
What the price assumes

19.2%

free-cash-flow growth every year for 10 years, discounted at 10%, is what today’s price implies — starting from $0.3B of trailing free cash flow. It is an assumption the market is making, not a forecast Orin is making.

What Wall Street published

12 firms · 2026-09-24
Consensus target

$386

$350 – $450 · +35% against today's price

How they rate it
  • 12 buy or overweight
  • 0 hold
  • 0 underweight or sell

The analysts’ consensus and their own ratings, not Orin’s. A target is a twelve-month opinion published by the firm that wrote it.

Against the companies it is compared to

median P/E 17.7× of 5 peers
CompanyMarket capP/EEV/EBITDAGrossNetROE
ONTOOnto Innovation Inc.$14B104.4×53.4×50.4%11.8%7%
CAMTCamtek Ltd.$7B181.4×236.6×50.1%7.4%6%
CRUSCirrus Logic, Inc.$6B14.1×9.7×52.8%21.0%20%
KDKyndryl Holdings, Inc.$3B7.9×2.4×21.9%1.3%29%
OLEDUniversal Display Corporation$3B17.7×12.7×75.3%32.2%11%
SMTCSemtech Corporation$16B105.3×140.1×52.0%13.1%25%

The median is of the 5 peers listed above and nothing else — check it against the column. This company trades 489.8% above it. The peer set is the vendor’s, so a company can appear here that a person would not have chosen.

What it has traded at

P/E by fiscal year
FY15 26.6×FY26 59.7×

What its sector has traded at

Technology
FY14 9.0×FY26 48.0×

Two scales, drawn separately on purpose: a sector median and one company’s multiple are not the same number and putting them on one axis invites a comparison neither series supports.

Every estimate on one scale

price $284.77
52-week range$119 – $386
Analyst targets$350 – $450
At sector P/E (53×)$143

The vertical rule is the current price. Ranges and point estimates are the backend’s, published as they were calculated; an arrow means the estimate sits beyond this scale, and its number is on the right.