StockDriftsStockDriftsTop 50 Columbia Asset Management Holdings
| Stock | Company | % Port. | Shares | Value | Activity | Ownership | Avg. Cost | Date |
|---|---|---|---|---|---|---|---|---|
| AAPL | APPLE INC | 10.7% | 184.9K | $61.6M | -2.69%(-5.10K) | $57.33(+498.21%) | 2026-09-30 | |
| MSFT | MICROSOFT CORP | 7.85% | 88.0K | $45.1M | -1.46%(-1.30K) | $51.15(+943.11%) | 2026-09-30 | |
| GOOGL | ALPHABET INC | 4.08% | 68.2K | $23.5M | -5.59%(-4.04K) | $42.92(+701.95%) | 2026-09-30 | |
| AMZN | AMAZON COM INC | 3.34% | 77.2K | $19.2M | -4.15%(-3.34K) | $73.81(+255.57%) | 2026-09-30 | |
| V | VISA INC | 3.02% | 48.3K | $17.4M | -3.39%(-1.70K) | $84.68(+375.79%) | 2026-09-30 | |
| BRK.B | BERKSHIRE HATHAWAY INC DEL | 2.92% | 33.7K | $16.8M | -0.11%(-37) | $103.57(+413.88%) | 2026-09-30 | |
| ERIE | ERIE INDTY CO | 2.77% | 72.6K | $15.9M | +0.04%(+27) | $198.57(+22.77%) | 2026-09-30 | |
| MRK | MERCK & CO INC | 2.7% | 106.8K | $15.5M | -3.29%(-3.64K) | $23.24(+518.00%) | 2026-09-30 | |
| AVGO | BROADCOM INC | 2.66% | 43.5K | $15.3M | -4.28%(-1.94K) | $37.91(+782.48%) | 2026-09-30 | |
| JNJ | JOHNSON & JOHNSON | 2.28% | 49.6K | $13.1M | -3.13%(-1.60K) | $88.23(+187.66%) | 2026-09-30 |
| Performance Metric | 3-Year Annualized | 3-Year Cumulative | 5-Year Annualized | 5-Year Cumulative |
|---|---|---|---|---|
| Top 20 Holdings Weighted | +17.30% | +61.39% | +15.36% | +104.32% |
| Top 20 Holdings Unweighted | +17.34% | +61.55% | +13.52% | +88.53% |
Columbia Asset Management reports $575.92M in US-listed equity holdings across 167 positions in its most recent 13F filing. Its largest disclosed positions are AAPL (10.7%), MSFT (7.8%) and GOOGL (4.1%). The top 20 holdings account for 58.68% of reported assets. Its disclosed equity book has returned +61.39% on a three-year cumulative basis. Figures reflect the Q3 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 Columbia Asset Management’s Form 13F filings with the U.S. Securities and Exchange Commission (CIK 1585047). View Columbia Asset Management’s 13F filings on SEC