This is a Scorecard review, revisiting a past LF0 research call against what actually happened.
Ticker: ONTO Rating: Sell Published: 2026-07-14 Checkpoint: 2026-09-14 Entry price: $319.32 Latest price: $258.90 as of 2026-09-14 Stock return since entry: -18.9% Signal return: +18.9% Verdict: Correct so far
This is the 2-month checkpoint for this call. LF0 publishes monthly Scorecard updates through month 6, using the closest available daily close on or before the checkpoint date.
Read the original LF0 analysis
What I Said
I said ONTO was priced for a better earnings path than its latest quarter and peer setup justified, even though I acknowledged the business has a moat, a strong balance sheet, and healthy gross margins. My concern was that customer concentration, tariff exposure, and export controls were slowing the conversion of that strength into operating profit, while the 54.2x EV/EBITDA multiple and 1.2% FCF yield left little room for disappointment.
Peer Comparison
| Company | Return Since Entry |
|---|---|
| ONTO (this call) | -18.9% |
| AMAT | -28.0% |
| ASML | -10.1% |
| KLAC | -26.3% |
| LRCX | -20.0% |
| NVMI | -28.3% |
Why It’s Working (Or Not)
So far, a short would have earned about 18.9% from my entry, so the Sell call has been directionally right. The stock has fallen while the peer group has also been broadly weaker, which means my thesis has not been uniquely proven by a relative-strength collapse, but it has still been supported by the market’s willingness to reprice the name lower. The specific valuation concern I highlighted has held up better than the bullish case: the market has not rewarded the moat and balance sheet enough to offset the execution and policy risks I named. I still cannot claim the full thesis is finished, but the evidence so far says the burden of proof remains on management, not on me.
What Could Still Prove Me Wrong
What could still prove me wrong is a sustained re-acceleration in revenue above 15% for two straight quarters, paired with operating margin moving into the high teens, because that would show the earnings rebound is durable rather than temporary. I would also have to reconsider if customer concentration, tariff exposure, and export controls stop meaningfully constraining profitability and the company starts converting gross margin strength into stronger operating income. If growth slips back below 8% for two straight quarters or earnings stay weak while the stock stabilizes at a much richer valuation, that would reinforce my original Sell.
The July 2026 Cohort
Other directional calls published the same month:
| Ticker | Rating | Entry | Latest | Stock Return | Signal Return | Verdict |
|---|---|---|---|---|---|---|
| NLST | Sell | $2.44 | $4.79 | +96.3% | -96.3% | Incorrect so far |
| BMNR | Sell | $17.74 | $25.20 | +42.1% | -42.1% | Incorrect so far |
| RDW | Sell | $8.99 | $10.60 | +17.9% | -17.9% | Incorrect so far |
| QUBT | Sell | $7.43 | $7.97 | +7.2% | -7.2% | Incorrect so far |
| FTNT | Sell | $156.25 | $164.10 | +5.0% | -5.0% | Incorrect so far |
| VSAT | Sell | $69.54 | $71.90 | +3.4% | -3.4% | Incorrect so far |
| RCAT | Sell | $7.83 | $7.89 | +0.8% | -0.8% | Incorrect so far |
| MARA | Sell | $11.67 | $11.61 | -0.5% | +0.5% | Correct so far |
| HUT | Sell | $98.33 | $91.61 | -6.8% | +6.8% | Correct so far |
| SMR | Strong Sell | $8.81 | $8.40 | -4.6% | +6.9% | Correct so far |
| TPL | Sell | $408.26 | $371.00 | -9.1% | +9.1% | Correct so far |
| AMBA | Sell | $72.90 | $65.31 | -10.4% | +10.4% | Correct so far |
| TTWO | Sell | $247.62 | $217.04 | -12.3% | +12.3% | Correct so far |
| AMKR | Sell | $60.60 | $48.33 | -20.2% | +20.2% | Correct so far |
| UAN | Buy | $110.58 | $136.47 | +23.4% | +23.4% | Correct so far |
| CIFR | Sell | $21.85 | $16.18 | -25.9% | +25.9% | Correct so far |
| MYRG | Sell | $391.51 | $279.39 | -28.6% | +28.6% | Correct so far |
| FLNC | Sell | $14.42 | $9.60 | -33.4% | +33.4% | Correct so far |
| MTZ | Sell | $380.63 | $232.15 | -39.0% | +39.0% | Correct so far |
Live LF0 scorecard: The Scorecard | Research Performance dashboard
Past performance does not guarantee future results. Nothing here is investment advice or a recommendation to buy or sell securities. Returns use LF0’s daily-close scorecard methodology.
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