Synopsys SNPS
$450.46 +$10.15 (+2.31%)
Market closed · Nov 6, 8:10 pm ET · Last extended-hours $450.46 0.00%
Open$449.78
Prev close$440.31
Day range$438.01 – $453.60
Volume2.32M
Market cap$86.32B
P/E (TTM)78.8
Dividend yield–
Ownership & positioning
Who holds it, who is betting against it, and where the big money is moving
Institutional ownership94.4%-0.10 pts vs. prior quarter
Institutions holding1,792-25 vs. prior quarter
Insider trades (recent)28 buys / 22 sellsNet buying
ARK fund activity+940 sh1 recent transactions · last 17 May 2026
Short interest3.38% of floatDays to cover 2.2 · as of 15 Oct 2026
Short-sale volume share14.9%5-day average of daily volume
Short-sale volume as % of daily volume
Large-order net flow, last 20 sessions
Net of large-order buying minus selling, in USD. Over this window: +$44.60M (13 inflow days, 7 outflow days).
Net flow by order size, last 20 sessions
Super/Big orders approximate institutional-size trades; Mid/Small approximate retail-size trades. Net buy minus sell value in each bucket, summed over the window.
The five largest holders on file together own 26.2% of shares outstanding.
Largest holders
By investor type
Reported short interest has risen from 2.74% to 3.38% of float over the last 6 biweekly reports (31 Jul 2026 to 15 Oct 2026).
Recent institutional activity
| Holder | Type | Period | Share change | New stake |
|---|---|---|---|---|
| Assenagon Asset Management S.A. | Mutual Fund | 2026/Q3 | +274,586 | 1.4% |
| UBS Asset Management | Mutual Fund | 2026/Q3 | +1,367,130 | 2.9% |
| AQR Capital Management | Hedge Fund | 2026/Q3 | +1,331,962 | 0.8% |
| Columbia Management Investment Advisers, LLC | Mutual Fund | 2026/Q3 | +797,413 | 1.1% |
| Jane Street Group, LLC | Private Company | 2026/Q3 | +775,336 | 0.4% |
| Assenagon Asset Management S.A. | Mutual Fund | 2026/Q3 | +695,146 | 1.3% |
| American Century Investment Management | Mutual Fund | 2026/Q3 | +624,135 | 0.7% |
| Barclays PLC | Public Company | 2026/Q3 | +582,226 | 0.9% |
| SG Americas Securities, LLC | Private Company | 2026/Q3 | +581,334 | 0.5% |
| Van Eck Associates Corporation | Mutual Fund | 2026/Q3 | +569,687 | 1.8% |
| Aspex Management (HK) Limited | Mutual Fund | 2026/Q3 | +442,114 | 1.6% |
| BNPP Asset Management Holding | Mutual Fund | 2026/Q3 | +431,003 | 0.4% |
| Alyeska Investment Group, L.P. | Hedge Fund | 2026/Q3 | +398,350 | 0.2% |
| Hudson Bay Capital Management LP | Hedge Fund | 2026/Q3 | +396,899 | 0.2% |
| BlackRock | Mutual Fund | 2026/Q3 | +338,178 | 8.5% |
Institutional buy/sell activity by reporting period, largest moves first.
Insider transactions
| Date | Insider | Title | Transaction | Shares | Price | Held after |
|---|---|---|---|---|---|---|
| 14 Oct 2026 | Sassine Ghazi | Chief Executive Officer | Derivative Exercise and Sale | -14,604 | $462.84 | 76,865 |
| 5 Oct 2026 | Janet Lee | General Counsel | Open Market Disposition | -1,143 | $502.64 | 16,534 |
| 5 Oct 2026 | Sudhindra Kankanwadi | Chief Accounting Officer | Derivative Exercise and Sale | -12,170 | $500.00 | 22,717 |
| 14 Sep 2026 | Sassine Ghazi | Chief Executive Officer | Derivative Exercise and Sale | -14,604 | $374.88 | 76,865 |
| 10 Sep 2026 | Janet Lee | General Counsel | Derivative Exercise and Sale | -993 | $397.38 | 17,678 |
| 10 Sep 2026 | Janet Lee | General Counsel | Derivative Exercise and Retained | +1,290 | – | 17,678 |
| 31 Aug 2026 | Janet Lee | General Counsel | Derivative Exercise and Sale | -304 | $414.82 | 16,388 |
| 31 Aug 2026 | Janet Lee | General Counsel | Derivative Exercise and Retained | +395 | – | 16,388 |
| 31 Aug 2026 | Aart de Geus | Co-Founder & Executive Chairperson | Derivative Exercise and Sale | -49,641 | $441.76 | 443,734 |
| 30 Aug 2026 | Aart de Geus | Co-Founder & Executive Chairperson | Other Acquisition | +22 | $360.96 | 443,734 |
| 30 Aug 2026 | Michael Ellow | Chief Revenue Officer | Other Acquisition | +27 | $360.96 | 2,628 |
| 30 Aug 2026 | Sudhindra Kankanwadi | Chief Accounting Officer | Other Acquisition | +27 | $360.96 | 22,717 |
| 30 Aug 2026 | Sassine Ghazi | Chief Executive Officer | Other Acquisition | +27 | $360.96 | 76,865 |
| 27 Aug 2026 | Aart de Geus | Co-Founder & Executive Chairperson | Derivative Exercise and Sale | -25,000 | $445.55 | 443,712 |
| 15 Aug 2026 | Janet Lee | General Counsel | Derivative Exercise and Sale | -318 | $421.50 | 15,993 |
| 15 Aug 2026 | Janet Lee | General Counsel | Derivative Exercise and Retained | +411 | – | 15,993 |
| 14 Jun 2026 | Aart de Geus | Co-Founder & Executive Chairperson | Derivative Exercise and Sale | -156 | $454.38 | 443,712 |
| 14 Jun 2026 | Aart de Geus | Co-Founder & Executive Chairperson | Derivative Exercise and Retained | +293 | – | 443,712 |
| 14 Jun 2026 | Michael Ellow | Chief Revenue Officer | Derivative Exercise and Sale | -2,543 | $454.38 | 2,601 |
| 14 Jun 2026 | Michael Ellow | Chief Revenue Officer | Derivative Exercise and Retained | +2,585 | – | 2,601 |
From Form 4/Form 144 filings. Negative share counts are disposals (sales, gifts, or shares withheld for taxes); positive are acquisitions.
Short interest, by report
| Report date | Shares short | % of float | Days to cover |
|---|---|---|---|
| 15 Oct 2026 | 6,478,309 | 3.4% | 2.2 |
| 30 Sep 2026 | 4,973,135 | 2.6% | 2.4 |
| 15 Sep 2026 | 5,712,575 | 3.0% | 3.1 |
| 31 Aug 2026 | 5,214,211 | 2.7% | 2.7 |
| 14 Aug 2026 | 4,357,355 | 2.3% | 3.4 |
| 31 Jul 2026 | 5,242,368 | 2.7% | 2.2 |
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