Institutional Manager · CIK 0001313559
Yorktown Management & Research Co Inc
Forest, VA · File #028-12529
Latest AUM
$125.1M
Positions
219
Top-10 Concentration
37.6%
Filings
9
Portfolio Value Over Time
2024-03
2024-06
2024-09
2024-12
2025-03
2025-06
2025-09
2025-12
Biggest QoQ Changes
Ranked by conviction flow (share change × current price) so mark-to-market moves don't dominate. Price effect column shows how much of the $ change was just the stock moving.
| Action | Issuer | Ticker / CUSIP | Δ Shares | Flow ($) | Price Effect |
|---|---|---|---|---|---|
| REDUCE | iShares Convertible Bond ETF | 46435G102 | -23,000 | -$2.3M | -$77,500 |
| REDUCE | SPDR Bloomberg Convertible Securities ETF | 78464A359 | -23,000 | -$2.1M | -$65,000 |
| REDUCE | SEMrush Holdings, Inc. | SEMR | -87,500 | -$1.0M | +$577,200 |
| EXITED | Descartes Systems Group, Inc./The | 249906108 | -10,800 | -$1.0M | $0 |
| NEW | Accelerant Holdings | ARX | +59,300 | +$969,555 | $0 |
| NEW | iShares iBoxx $ Investment Grade Corporate Bond | 464287242 | +8,000 | +$881,520 | $0 |
| NEW | Zeta Global Holdings Corporation | ZETA | +38,350 | +$780,423 | $0 |
| REDUCE | iShares Preferred and Income Securities ETF | 464288687 | -25,000 | -$774,000 | -$42,900 |
| NEW | Figure Technology Solutions, Inc. | FGRS | +17,300 | +$706,532 | $0 |
| NEW | Lyft, Inc. | LYFT | +33,200 | +$643,084 | $0 |
Sector Allocation
Filing History
- 13F HOLDINGS REPORTQ/E Dec 2025219 pos · $125.1M
- 13F HOLDINGS REPORTQ/E Sep 2025206 pos · $125.4M
- 13F HOLDINGS REPORTQ/E Jun 2025208 pos · $104.8M
- 13F HOLDINGS REPORTQ/E Mar 2025206 pos · $92.0M
- 13F HOLDINGS REPORTQ/E Dec 2024204 pos · $104.0M
- 13F HOLDINGS REPORTQ/E Sep 2024194 pos · $97.6M
- 13F HOLDINGS REPORTQ/E Jun 2024189 pos · $93.1M
- 13F HOLDINGS REPORTQ/E Mar 2024217 pos · $105.1M
- 13F HOLDINGS REPORTQ/E Dec 2023211 pos · $88.9M
Top 20 Holdings — Dec 2025
| # | Issuer | Ticker | Shares | Value | % of Portfolio |
|---|---|---|---|---|---|
| 1 | Comfort Systems USA, Inc. | 199908104 | 3,500 | $3.3M | 5.63% |
| 2 | iShares Convertible Bond ETF | 46435G102 | 27,000 | $2.7M | 4.59% |
| 3 | IES Holdings, Inc. | IESC | 6,340 | $2.5M | 4.25% |
| 4 | SPDR Bloomberg Convertible Securities ETF | 78464A359 | 27,000 | $2.4M | 4.15% |
| 5 | Vanguard Emerging Markets Government Bond ETF | 921946885 | 33,000 | $2.2M | 3.84% |
| 6 | LPL Financial Holdings, Inc. | 50212V100 | 5,290 | $1.9M | 3.26% |
| 7 | CyberArk Software Ltd. | M2682V108 | 4,050 | $1.8M | 3.12% |
| 8 | Fabrinet | FN | 3,800 | $1.7M | 2.98% |
| 9 | Insmed, Inc. | INSM | 9,600 | $1.7M | 2.88% |
| 10 | Mueller Industries, Inc. | 624756102 | 14,450 | $1.7M | 2.86% |
| 11 | Axon Enterprise, Inc. | AXON | 2,650 | $1.5M | 2.60% |
| 12 | Robinhood Markets, Inc. | 770700102 | 12,300 | $1.4M | 2.40% |
| 13 | Arista Networks, Inc. | ANET | 9,800 | $1.3M | 2.21% |
| 14 | iShares Preferred and Income Securities ETF | 464288687 | 40,000 | $1.2M | 2.14% |
| 15 | FTAI Aviation Ltd. | FTAIN | 5,800 | $1.1M | 1.97% |
| 16 | WESCO International, Inc. | 95082P105 | 4,550 | $1.1M | 1.92% |
| 17 | KLA Corporation | KLAC | 890 | $1.1M | 1.87% |
| 18 | Nova Ltd. | NVMI | 3,200 | $1.1M | 1.81% |
| 19 | Raymond James Financial, Inc. | 754730109 | 6,450 | $1.0M | 1.79% |
| 20 | Medpace Holdings, Inc. | MEDP | 1,800 | $1.0M | 1.74% |