Yorktown Management & Research Co Inc
Q3 2026 13F filing
Updated 8 days ago252 disclosed positions worth $149.7M
Full holdings
Every line item disclosed in Q3 2026
| # | Stock | Value | Shares | % Portfolio | Change |
|---|---|---|---|---|---|
| 1 | F Comfort Systems USA, Inc. | $4.9M | 3.0K | 3.27% | — |
| 2 | I IES Holdings, Inc. | $3.5M | 11.0K | 2.36% | — |
| 3 | G Guardant Health, Inc. | $2.2M | 12.5K | 1.49% | — |
| 4 | A Arista Networks, Inc. | $2M | 9.8K | 1.33% | — |
| 5 | K KLA Corporation | $1.7M | 8.9K | 1.16% | — |
| 6 | E iShares Convertible Bond ETF | $1.7M | 15.0K | 1.13% | — |
| 7 | C CECO Environmental Corporation | $1.7M | 24.3K | 1.13% | — |
| 8 | W WESCO International, Inc. | $1.6M | 4.5K | 1.09% | — |
| 9 | V Vanguard Emerging Markets Government Bond ETF | $1.6M | 25.0K | 1.05% | — |
| 10 | S StoneX Group, Inc. | $1.5M | 23.6K | 1.02% | — |
| 11 | C SPDR Bloomberg Convertible Securities ETF | $1.5M | 15.0K | 1.01% | — |
| 12 | B iShares iBoxx $ Investment Grade Corporate Bond | $1.4M | 14.0K | 0.96% | — |
| 13 | F Fabrinet | $1.3M | 3.1K | 0.89% | — |
| 14 | S Semtech Corporation | $1.2M | 6.8K | 0.82% | — |
| 15 | M Mueller Industries, Inc. | $1.2M | 19.1K | 0.77% | — |
| 16 | B Bloom Energy Corporation | $1.1M | 4.2K | 0.77% | — |
| 17 | X Xometry, Inc. | $1.1M | 11.1K | 0.76% | — |
| 18 | M Medpace Holdings, Inc. | $1.1M | 1.8K | 0.75% | — |
| 19 | D Datadog, Inc. | $1.1M | 4.0K | 0.73% | — |
| 20 | C Camtek Ltd. | $1.1M | 7.0K | 0.73% | — |
| 21 | L Lumentum Holdings, Inc. | $1.1M | 1.1K | 0.73% | — |
| 22 | A ACM Research, Inc. | $1.1M | 13.3K | 0.72% | — |
| 23 | I Interactive Brokers Group, Inc. | $1.1M | 12.4K | 0.71% | — |
| 24 | F FirstCash Holdings, Inc. | $1M | 5.0K | 0.70% | — |
| 25 | D Digi International, Inc. | $1M | 13.7K | 0.70% | — |
| 26 | R Raymond James Financial, Inc. | $1M | 6.5K | 0.68% | — |
| 27 | A Nova Ltd. | $1M | 2.6K | 0.68% | — |
| 28 | L LifeStance Health Group, Inc. | $1M | 83.6K | 0.67% | — |
| 29 | T Twist Bioscience Corporation | $986K | 5.1K | 0.66% | — |
| 30 | R RBC Bearings, Inc. | $983K | 2.0K | 0.66% | — |
| 31 | R RingCentral, Inc. | $975K | 13.1K | 0.65% | — |
| 32 | F FTAI Aviation Ltd. | $969K | 5.8K | 0.65% | — |
| 33 | A Axos Financial, Inc. | $965K | 11.2K | 0.64% | — |
| 34 | P Penumbra, Inc. | $955K | 3.0K | 0.64% | — |
| 35 | U Unity Software, Inc. | $923K | 22.6K | 0.62% | — |
| 36 | I Insmed, Inc. | $905K | 7.9K | 0.60% | — |
| 37 | W Woodward, Inc. | $904K | 2.8K | 0.60% | — |
| 38 | A Axsome Therapeutics, Inc. | $894K | 4.8K | 0.60% | — |
| 39 | C Celestica, Inc. | $886K | 2.5K | 0.59% | — |
| 40 | F Fortinet, Inc. | $885K | 5.0K | 0.59% | — |
| 41 | M Monolithic Power Systems, Inc. | $876K | 650 | 0.58% | — |
| 42 | L LPL Financial Holdings, Inc. | $872K | 2.9K | 0.58% | — |
| 43 | H Halozyme Therapeutics, Inc. | $867K | 7.8K | 0.58% | — |
| 44 | H HA Sustainable Infrastructure Capital, Inc. | $844K | 23.6K | 0.56% | — |
| 45 | P Palo Alto Networks, Inc. | $830K | 2.1K | 0.55% | — |
| 46 | C Customers Bancorp, Inc. | $829K | 11.2K | 0.55% | — |
| 47 | I Installed Building Products, Inc. | $825K | 4.3K | 0.55% | — |
| 48 | G Gold Fields Ltd. | $822K | 22.8K | 0.55% | — |
| 49 | I IonQ, Inc. | $820K | 18.7K | 0.55% | — |
| 50 | G GRAIL, Inc. | $806K | 5.8K | 0.54% | — |