Potomac Fund Management Inc
13F filer · CIK 0000826000Reported Aug 13, 2026
Net buyer this quarter
13F portfolio value$3.97BU.S. long equity reported on 13F
Positions624 new · 8 closed
Net flow last quarter+$9.03MBuys minus sells
Top 10 positions weight3.9%Concentration
Holdings
13F · last 4 quarters freeScroll for earlier quarters
| Company | Value | % of portfolio | % of company | POSITION CHANGE qoq % | First reported |
|---|---|---|---|---|---|
| Q2 2026Reported Aug 13, 202662 positions | |||||
| $60.9M | 1.53% | Not reported | +1.5% | Q4 2024 | |
| $30M | 0.75% | 6.72% | +4.7% | Q4 2024 | |
| $25.6M | 0.65% | Not reported | -5.2% | Q3 2025 | |
| $23.7M | 0.60% | Not reported | +70.4% | Q3 2025 | |
| $2.62M | 0.07% | 0.64% | +4.7% | Q4 2024 | |
| $2.35M | 0.06% | 0.00% | -0.8% | Q4 2024 | |
| $2.27M | 0.06% | 0.00% | -0.7% | Q4 2024 | |
| $2.07M | 0.05% | 0.00% | +1.0% | Q4 2024 | |
| $2.06M | 0.05% | 0.00% | -0.9% | Q4 2024 | |
| $2.05M | 0.05% | 0.00% | +0.2% | Q4 2024 | |
| $1.98M | 0.05% | 0.00% | +9.7% | Q4 2024 | |
| $1.97M | 0.05% | Not reported | Not reported | Q4 2024 | |
| $1.94M | 0.05% | 0.00% | -0.1% | Q4 2024 | |
| $1.88M | 0.05% | 0.01% | -1.2% | Q4 2025 | |
| $1.85M | 0.05% | 0.00% | +3.5% | Q4 2024 | |
| $1.76M | 0.04% | 0.00% | +2.7% | Q4 2024 | |
| $1.73M | 0.04% | 0.00% | +3.6% | Q4 2024 | |
| $1.67M | 0.04% | 0.00% | -2.0% | Q4 2024 | |
| $1.57M | 0.04% | 0.00% | -0.3% | Q4 2024 | |
| $1.54M | 0.04% | 0.00% | +9.3% | Q4 2024 | |
| $1.51M | 0.04% | 0.00% | +2.8% | Q4 2024 | |
| $1.43M | 0.04% | 0.00% | -2.3% | Q4 2024 | |
| $1.31M | 0.03% | 0.00% | +123.6% | Q4 2025 | |
| $1.22M | 0.03% | 0.00% | -0.2% | Q4 2024 | |
| $1.22M | 0.03% | 0.00% | -8.1% | Q4 2024 | |
| $1.17M | 0.03% | 0.00% | +1.7% | Q1 2026 | |
| $1.15M | 0.03% | 0.01% | -0.8% | Q4 2024 | |
| $1.1M | 0.03% | 0.00% | +3.5% | Q4 2024 | |
| $1.08M | 0.03% | 0.00% | +5.5% | Q3 2025 | |
| $968K | 0.02% | 0.00% | -0.1% | Q4 2024 | |
| $932K | 0.02% | 0.00% | +15.7% | Q4 2024 | |
| $917K | 0.02% | Not reported | -4.1% | Q2 2026 | |
| $916K | 0.02% | 0.00% | -4.4% | Q4 2024 | |
| $880K | 0.02% | 0.00% | +17.2% | Q3 2025 | |
| $826K | 0.02% | 0.00% | -3.6% | Q1 2026 | |
| $824K | 0.02% | 0.01% | -3.1% | Q4 2025 | |
| $728K | 0.02% | 0.00% | +0.7% | Q4 2024 | |
| $717K | 0.02% | 0.00% | -58.1% | Q4 2024 | |
| $707K | 0.02% | 0.00% | -10.9% | Q1 2025 | |
| $703K | 0.02% | 0.00% | New | Q2 2026 | |
| $679K | 0.02% | 0.00% | +1.1% | Q4 2024 | |
| $661K | 0.02% | 0.00% | +1.2% | Q4 2024 | |
| $650K | 0.02% | 0.00% | -0.3% | Q4 2024 | |
| $644K | 0.02% | 0.00% | -12.2% | Q3 2025 | |
| $628K | 0.02% | Not reported | -10.9% | Q4 2024 | |
| $603K | 0.02% | 0.00% | -10.3% | Q4 2024 | |
| $569K | 0.01% | 0.01% | +1.4% | Q4 2024 | |
| $555K | 0.01% | 0.00% | New | Q2 2026 | |
| $532K | 0.01% | 0.00% | -10.8% | Q4 2024 | |
| $508K | 0.01% | 0.00% | -10.6% | Q4 2024 | |
| Q1 2026Reported May 14, 202665 positions | |||||
| $50.3M | 1.75% | Not reported | +1.0% | Q4 2024 | |
| $28M | 0.97% | 4.89% | Not reported | Q4 2024 | |
| $16.1M | 0.56% | Not reported | +9.3% | Q3 2025 | |
| $15.8M | 0.55% | Not reported | +5.8% | Q3 2025 | |
| $2.69M | 0.09% | 0.61% | -17.7% | Q4 2024 | |
| $2.5M | 0.09% | 0.00% | +2.3% | Q4 2024 | |
| $2.35M | 0.08% | 0.00% | +3.0% | Q4 2024 | |
| $2.31M | 0.08% | 0.00% | -8.6% | Q4 2024 | |
| $2.26M | 0.08% | 0.00% | -5.3% | Q4 2024 | |
| $2.06M | 0.07% | 0.00% | +2.3% | Q4 2024 | |
| $2.05M | 0.07% | Not reported | +0.3% | Q4 2024 | |
| $1.97M | 0.07% | 0.00% | +2.6% | Q4 2024 | |
| $1.96M | 0.07% | 0.00% | +2.7% | Q4 2024 | |
| $1.92M | 0.07% | 0.00% | +3.2% | Q4 2024 | |
| $1.69M | 0.06% | 0.00% | +5.0% | Q4 2024 | |
| $1.67M | 0.06% | 0.00% | +4.7% | Q4 2024 | |
| $1.59M | 0.06% | 0.00% | -7.1% | Q4 2024 | |
| $1.55M | 0.05% | 0.00% | +2.8% | Q4 2024 | |
| $1.55M | 0.05% | 0.00% | +7.2% | Q4 2024 | |
| $1.47M | 0.05% | 0.00% | +2.2% | Q4 2024 | |
| $1.45M | 0.05% | 0.00% | -14.3% | Q4 2024 | |
| $1.44M | 0.05% | 0.00% | +2.0% | Q4 2024 | |
| $1.38M | 0.05% | 0.00% | +9.2% | Q4 2024 | |
| $1.38M | 0.05% | 0.00% | +2.8% | Q4 2024 | |
| $1.35M | 0.05% | 0.00% | +2.4% | Q4 2024 | |
| $1.35M | 0.05% | 0.01% | -1.4% | Q4 2025 | |
| $1.22M | 0.04% | 0.00% | +4.7% | Q4 2024 | |
| $1.19M | 0.04% | 0.00% | New | Q1 2026 | |
| $1.18M | 0.04% | 0.01% | +4.0% | Q4 2024 | |
| $1.17M | 0.04% | 0.00% | +4.9% | Q4 2024 | |
| $1.06M | 0.04% | 0.00% | +7.0% | Q3 2025 | |
| $813K | 0.03% | 0.00% | -2.5% | Q4 2024 | |
| $775K | 0.03% | 0.00% | -11.0% | Q4 2024 | |
| $732K | 0.03% | 0.01% | -26.2% | Q4 2025 | |
| $704K | 0.02% | 0.00% | +3.8% | Q4 2024 | |
| $685K | 0.02% | 0.00% | +4.4% | Q4 2024 | |
| $679K | 0.02% | 0.00% | -5.7% | Q4 2024 | |
| $664K | 0.02% | 0.00% | -2.4% | Q4 2024 | |
| $654K | 0.02% | 0.00% | -0.9% | Q3 2025 | |
| $640K | 0.02% | 0.01% | +5.5% | Q4 2024 | |
| $608K | 0.02% | 0.00% | -0.5% | Q1 2025 | |
| $601K | 0.02% | 0.00% | -2.0% | Q3 2025 | |
| $597K | 0.02% | 0.00% | New | Q1 2026 | |
| $587K | 0.02% | 0.00% | -41.5% | Q4 2024 | |
| $574K | 0.02% | 0.00% | +99.7% | Q4 2024 | |
| $572K | 0.02% | Not reported | -0.3% | Q4 2024 | |
| $553K | 0.02% | 0.00% | -1.3% | Q4 2024 | |
| $544K | 0.02% | 0.00% | -0.5% | Q4 2024 | |
| $535K | 0.02% | 0.00% | +15.7% | Q4 2024 | |
| $525K | 0.02% | 0.00% | -1.0% | Q4 2024 | |
| Q4 2025Reported Feb 13, 202664 positions | |||||
| $53.2M | 1.96% | Not reported | +3.4% | Q4 2024 | |
| $14M | 0.52% | Not reported | +3.5% | Q3 2025 | |
| $13.7M | 0.50% | Not reported | -6.5% | Q3 2025 | |
| $2.98M | 0.11% | 0.00% | +4.0% | Q4 2024 | |
| $2.91M | 0.11% | 0.74% | -31.1% | Q4 2024 | |
| $2.25M | 0.08% | 0.00% | -10.4% | Q4 2024 | |
| $2.2M | 0.08% | 0.00% | -11.1% | Q4 2024 | |
| $2.14M | 0.08% | 0.00% | -5.5% | Q4 2024 | |
| $2.1M | 0.08% | 0.00% | -9.6% | Q4 2024 | |
| $2.09M | 0.08% | 0.00% | -5.7% | Q4 2024 | |
| $1.93M | 0.07% | 0.00% | -3.3% | Q4 2024 | |
| $1.91M | 0.07% | Not reported | -3.7% | Q4 2024 | |
| $1.83M | 0.07% | 0.00% | -3.0% | Q4 2024 | |
| $1.78M | 0.07% | 0.00% | +8.9% | Q4 2024 | |
| $1.66M | 0.06% | 0.00% | -1.3% | Q4 2024 | |
| $1.65M | 0.06% | Not reported | +66.9% | Q4 2024 | |
| $1.64M | 0.06% | 0.00% | -1.0% | Q4 2024 | |
| $1.6M | 0.06% | 0.00% | +0.8% | Q4 2024 | |
| $1.51M | 0.06% | 0.00% | +5.8% | Q4 2024 | |
| $1.51M | 0.06% | 0.00% | +6.8% | Q4 2024 | |
| $1.48M | 0.05% | 0.00% | -9.9% | Q4 2024 | |
| $1.48M | 0.05% | 0.00% | -4.6% | Q4 2024 | |
| $1.44M | 0.05% | 0.00% | -5.0% | Q4 2024 | |
| $1.42M | 0.05% | 0.00% | -3.0% | Q4 2024 | |
| $1.12M | 0.04% | 0.00% | +0.8% | Q4 2024 | |
| $1.11M | 0.04% | 0.00% | +29.2% | Q4 2024 | |
| $1.08M | 0.04% | 0.00% | -0.2% | Q4 2024 | |
| $1.07M | 0.04% | 0.00% | +2.6% | Q4 2024 | |
| $1.05M | 0.04% | 0.00% | -0.3% | Q4 2024 | |
| $995K | 0.04% | 0.01% | +4.1% | Q4 2024 | |
| $965K | 0.04% | 0.01% | -0.6% | Q4 2025 | |
| $947K | 0.03% | 0.00% | +34.8% | Q3 2025 | |
| $737K | 0.03% | 0.00% | -12.7% | Q4 2024 | |
| $725K | 0.03% | 0.00% | +30.8% | Q4 2024 | |
| $713K | 0.03% | 0.00% | +27.9% | Q1 2025 | |
| $710K | 0.03% | 0.00% | -12.1% | Q4 2024 | |
| $706K | 0.03% | 0.00% | +31.2% | Q3 2025 | |
| $686K | 0.03% | 0.00% | +26.4% | Q3 2025 | |
| $647K | 0.02% | 0.00% | -20.5% | Q4 2024 | |
| $640K | 0.02% | 0.00% | +26.4% | Q4 2024 | |
| $633K | 0.02% | 0.01% | +511.6% | Q4 2025 | |
| $627K | 0.02% | Not reported | +28.6% | Q4 2024 | |
| $627K | 0.02% | 0.00% | +15.4% | Q4 2024 | |
| $616K | 0.02% | 0.00% | -1.6% | Q4 2024 | |
| $616K | 0.02% | 0.00% | +26.5% | Q4 2024 | |
| $614K | 0.02% | 0.00% | -14.0% | Q4 2024 | |
| $592K | 0.02% | 0.00% | New | Q4 2025 | |
| $581K | 0.02% | 0.00% | 0.0% | Q4 2024 | |
| $507K | 0.02% | 0.01% | +22.6% | Q4 2024 | |
| $439K | 0.02% | 0.06% | -0.6% | Q4 2024 | |
| Q3 2025Reported Nov 12, 202557 positions | |||||
| $50.2M | 2.13% | Not reported | -0.9% | Q4 2024 | |
| $12.6M | 0.53% | Not reported | New | Q3 2025 | |
| $12.3M | 0.52% | Not reported | New | Q3 2025 | |
| $4.01M | 0.17% | 1.07% | +52.5% | Q4 2024 | |
| $3.07M | 0.13% | 0.00% | +2.6% | Q4 2024 | |
| $2.43M | 0.10% | 0.00% | -5.2% | Q4 2024 | |
| $2.37M | 0.10% | 0.00% | -1.4% | Q4 2024 | |
| $2.36M | 0.10% | 0.00% | -3.8% | Q4 2024 | |
| $2.26M | 0.10% | 0.00% | -4.3% | Q4 2024 | |
| $2.1M | 0.09% | 0.00% | -2.8% | Q4 2024 | |
| $1.99M | 0.08% | 0.00% | -2.3% | Q4 2024 | |
| $1.94M | 0.08% | 0.00% | -2.1% | Q4 2024 | |
| $1.87M | 0.08% | 0.00% | -1.9% | Q4 2024 | |
| $1.85M | 0.08% | 0.01% | -1.3% | Q4 2024 | |
| $1.79M | 0.08% | 0.00% | -1.9% | Q4 2024 | |
| $1.71M | 0.07% | 0.00% | -0.7% | Q4 2024 | |
| $1.7M | 0.07% | 0.00% | -1.3% | Q4 2024 | |
| $1.65M | 0.07% | Not reported | -0.9% | Q4 2024 | |
| $1.54M | 0.07% | 0.00% | -4.3% | Q4 2024 | |
| $1.5M | 0.06% | 0.00% | +4.5% | Q4 2024 | |
| $1.48M | 0.06% | 0.00% | +0.1% | Q4 2024 | |
| $1.41M | 0.06% | 0.00% | -2.4% | Q4 2024 | |
| $1.4M | 0.06% | 0.00% | -3.1% | Q4 2024 | |
| $1.37M | 0.06% | 0.00% | -2.8% | Q4 2024 | |
| $1.08M | 0.05% | Not reported | +7.0% | Q4 2024 | |
| $1.08M | 0.05% | 0.00% | -1.4% | Q4 2024 | |
| $1.06M | 0.04% | 0.00% | -1.0% | Q4 2024 | |
| $1.05M | 0.04% | 0.00% | -1.0% | Q4 2024 | |
| $938K | 0.04% | 0.00% | +1.1% | Q4 2024 | |
| $819K | 0.03% | 0.00% | +19.7% | Q4 2024 | |
| $814K | 0.03% | 0.00% | -8.3% | Q4 2024 | |
| $800K | 0.03% | 0.00% | +8.6% | Q4 2024 | |
| $757K | 0.03% | 0.00% | -5.3% | Q4 2024 | |
| $743K | 0.03% | 0.00% | -3.4% | Q4 2024 | |
| $728K | 0.03% | 0.00% | -13.0% | Q4 2024 | |
| $706K | 0.03% | 0.00% | New | Q3 2025 | |
| $638K | 0.03% | 0.00% | -1.2% | Q4 2024 | |
| $609K | 0.03% | 0.00% | -0.1% | Q4 2024 | |
| $538K | 0.02% | 0.00% | New | Q3 2025 | |
| $517K | 0.02% | 0.00% | New | Q3 2025 | |
| $504K | 0.02% | 0.00% | +32.6% | Q4 2024 | |
| $502K | 0.02% | 0.00% | +11.3% | Q4 2024 | |
| $482K | 0.02% | 0.00% | -0.4% | Q4 2024 | |
| $479K | 0.02% | 0.00% | -11.5% | Q4 2024 | |
| $474K | 0.02% | 0.00% | +10.8% | Q4 2024 | |
| $442K | 0.02% | 0.06% | -0.8% | Q4 2024 | |
| $409K | 0.02% | 0.01% | +1.1% | Q4 2024 | |
| $396K | 0.02% | 0.00% | +39.5% | Q1 2025 | |
| $379K | 0.02% | Not reported | -2.6% | Q4 2024 | |
| $363K | 0.02% | 0.00% | +42.3% | Q4 2024 | |
Premium opens every quarter this fund has filed