StockDriftsStockDriftsTop 50 Westfield Capital Management CO LP Holdings
| Stock | Company | % Port. | Shares | Value | Activity | Ownership | Avg. Cost | Date |
|---|---|---|---|---|---|---|---|---|
| NVDA | NVIDIA CORPORATION | 5.28% | 8.08M | $1.62B | +27.91%(+1.76M) | $77.77(+190.67%) | 2026-06-30 | |
| GOOGL | ALPHABET INC | 4.38% | 3.75M | $1.34B | +84.98%(+1.72M) | $173.72(+98.43%) | 2026-06-30 | |
| AXON | AXON ENTERPRISE INC | 2.73% | 1.49M | $836.1M | +40.16%(+427.36K) | $417.03(+46.18%) | 2026-06-30 | |
| FTAI | FTAI AVIATION LTD | 2.6% | 2.94M | $794.6M | +3.12%(+89.00K) | $142.75(+62.87%) | 2026-06-30 | |
| AAPL | APPLE INC | 2.43% | 2.57M | $744.7M | -17.85%(-559.34K) | $86.17(+254.38%) | 2026-06-30 | |
| FIX | COMFORT SYS USA INC | 2.3% | 355.4K | $704.5M | -42.76%(-265.48K) | $279.18(+566.94%) | 2026-06-30 | |
| AVGO | BROADCOM INC | 1.92% | 1.56M | $588.0M | +25.84%(+319.60K) | $203.25(+93.72%) | 2026-06-30 | |
| MSFT | MICROSOFT CORP | 1.72% | 1.41M | $527.6M | -14.26%(-235.22K) | $191.63(+153.65%) | 2026-06-30 | |
| HWM | HOWMET AEROSPACE INC | 1.69% | 1.92M | $516.6M | -16.08%(-368.22K) | $146.02(+98.93%) | 2026-06-30 | |
| LLY | ELI LILLY & CO | 1.63% | 416.7K | $499.8M | +14.30%(+52.15K) | $858.59(+37.36%) | 2026-06-30 |
| Performance Metric | 3-Year Annualized | 3-Year Cumulative | 5-Year Annualized | 5-Year Cumulative |
|---|---|---|---|---|
| Top 20 Holdings Weighted | +27.52% | +107.38% | +15.53% | +105.85% |
| Top 20 Holdings Unweighted | +21.84% | +80.87% | +13.06% | +84.74% |
Westfield Capital Management CO LP reports $30.61B in US-listed equity holdings across 278 positions in its most recent 13F filing. Its largest disclosed positions are NVDA (5.3%), GOOGL (4.4%) and AXON (2.7%). The top 20 holdings account for 36.97% of reported assets. Its disclosed equity book has returned +107.38% on a three-year cumulative basis. Figures reflect the Q2 2026 filing.
Portfolio changes
Every reported change this quarter, grouped by direction. The signal is in the rotation, not any single trade.
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Holdings on this page are parsed from Westfield Capital Management CO LP’s Form 13F filings with the U.S. Securities and Exchange Commission (CIK 1177719). View Westfield Capital Management CO LP’s 13F filings on SEC