SAN FRANCISCO, July 18, 2026, 07:11 PDT
- U.S. markets are shut for the weekend. Synopsys finished Friday at $384.28, falling 7.85%.
- The stock fell 13.74% last week, compared to a 2.9% drop in the Nasdaq Composite.
- Friday’s implied loss in market value represented roughly 65% of fiscal 2026 revenue guidance.
Synopsys shed roughly $6.27 billion in implied market value on Friday, with shares ending the session 7.85% lower at $384.28 following Moonshot AI’s disclosure of its Kimi K3 chip-design project. The estimate is based on 191.48 million shares outstanding.
The loss represented about 65% of Synopsys’s fiscal 2026 revenue guidance midpoint. The magnitude indicates investors may have factored in a long-term moat risk, rather than only a disclosed near-term impact.
Wall Street is shut for the weekend. Synopsys declined 13.74% over the past week, as the Nasdaq Composite dropped 2.9%.
Cadence Design Systems NASDAQ:CDNS fell 9.47% on Friday. The stock lost 14.07% for the week, almost five times the decline of the Nasdaq.
Moonshot described the run as an initial proof of concept. K3 relied on open-source EDA tools along with a mature 45-nanometer library. The autonomous process lasted 48 hours.
Moonshot detailed a design measuring four square millimeters that operates at 100 megahertz. It generated upwards of 8,700 simulated tokens per second. The report covered simulation results, not actual silicon hardware.
Bloomberg Intelligence’s Niraj Patel recommended a cautious stance. “We see no immediate threat to Cadence and Synopsys’ revenue bases,” he wrote. Patel noted that leading-edge workflows are still reliant on proprietary tools. Investing.com
That distinction is key. The demonstration evaluates labor and interface economics ahead of any replacement by frontier tools. Its 45-nanometer process is several generations behind top 3- and 2-nanometer nodes.
On Friday, the two EDA vendors lost roughly $15.8 billion in combined market value during the selloff. The market-value changes and weekly return figures below are based on the latest pricing and share data.
| Comparison | Synopsys | Cadence Design Systems | Nasdaq Composite |
|---|---|---|---|
| Friday change | -7.85% | -9.47% | -1.40% |
| Weekly change | -13.74% | -14.07% | -2.90% |
| Estimated market value lost Friday | $6.27 billion | $9.53 billion | — |
| Forward price-to-earnings ratio | 24.2 times | 40.6 times | — |
| Outstanding net debt | $8.36 billion | $1.54 billion | — |
Synopsys is currently valued at around 24 times its forward earnings, while Cadence stands at around 41 times. Synopsys’s larger net debt continues alongside this discount.
Synopsys maintains its fiscal 2026 revenue forecast at $9.63 billion to $9.71 billion. The company’s outlook for adjusted earnings per share is $14.72 to $14.80. Third-quarter revenue is projected between $2.41 billion and $2.46 billion.
Chief Executive Sassine Ghazi said in May that customer discussions featured paid AI “agent engineers.” Additional deals would generate royalties on chips utilizing Synopsys intellectual property. The company’s approach views AI as a tool for pricing strategies. Reuters
In the coming week, Alphabet NASDAQ:GOOGL and Intel NASDAQ:INTC are set to report results, putting AI-trade sentiment under scrutiny. Moonshot expects to publish the complete weights for K3 by July 27. Reproducibility will take precedence over yet another benchmark.
Risks persist. Confirming a leading-edge outcome might impact EDA pricing. If replication fails, some of Friday’s gains could be lost. Synopsys has $8.36 billion in net debt.
Friday’s repricing is based on simulation data pending the technical report. Moonshot has so far delivered a proof of concept at 45 nanometers.
