Horizon Investment Services, LLC — 13F Holdings & Portfolio
CIK 1426940 · latest 13F-HR filed 2026-05-15
Horizon Investment Services, LLC manages $287.5M in 13F-reported U.S. long-equity assets across 137 reported positions as of its 2026-03-31 13F-HR filing. Its largest disclosed positions are NVDA (6.65%), VCSH (5.49%), GOOGL (4.55%). Quarter over quarter (versus its 2025-12-31 filing) the fund opened 19 new positions, exited 21, added to 48, and trimmed 32.
AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.
$287.5M
Long-equity book
137
Distinct positions
2026-03-31
Filed 2026-05-15
+19 / −21 / ↑48 / ↓32
vs 2025-12-31
| Name | Title / Status | Ownership | Type |
|---|
Top Adds (vs prior quarter)
- JABIL INC$2.9M +776.9%
- AMERICAN ELEC PWR CO INC$2.8M +1332.1%
- CHUBB LTD SWITZ$2.6M +310.9%
- COMFORT SYS USA INC$1.9M +37.6%
- FLOWSERVE CORP$1.8M +223.9%
Top Trims
- APPLOVIN CORP-$5.2M -47.4%
- MICROSOFT CORP-$2.5M -25.1%
- NVIDIA CORPORATION-$2.0M -9.5%
- ALPHABET INC-$1.7M -11.6%
- UBER TECHNOLOGIES INC-$1.5M -79.9%
New Positions
- LAM RESEARCH CORP$11.7M
- TECHNIPFMC PLC$2.5M
- DELL TECHNOLOGIES INC$1.1M
- THERMON GROUP HLDGS INC$912.8K
- AMETEK INC$841.0K
Exited Positions
- DISNEY WALT CO$3.0M
- GENERAL DYNAMICS CORP$2.7M
- CAPITAL ONE FINL CORP$2.6M
- VEEVA SYS INC$1.7M
- QUALYS INC$946.5K
Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).
| # | Issuer | Symbol | CUSIP | Value | Weight | Shares | Type |
|---|---|---|---|---|---|---|---|
| 1 | NVIDIA CORPORATION | NVDA | 67066G104 | $19.1M | 6.65% | 109,704 | SH |
| 2 | VANGUARD SCOTTSDALE FDS | VCSH | 92206C409 | $15.8M | 5.49% | 199,279 | SH |
| 3 | ALPHABET INC | GOOGL | 02079K305 | $13.1M | 4.55% | 45,443 | SH |
| 4 | LAM RESEARCH CORP | LRCX | 512807306 | $11.7M | 4.06% | 54,616 | SH |
| 5 | BROADCOM INC | AVGO | 11135F101 | $9.3M | 3.23% | 30,027 | SH |
| 6 | SPDR SERIES TRUST | SPHY | 78468R606 | $8.1M | 2.83% | 349,133 | SH |
| 7 | APPLE INC | AAPL | 037833100 | $7.5M | 2.62% | 29,651 | SH |
| 8 | MICROSOFT CORP | MSFT | 594918104 | $7.4M | 2.56% | 19,886 | SH |
| 9 | COMFORT SYS USA INC | FIX | 199908104 | $7.1M | 2.47% | 5,143 | SH |
| 10 | APPLOVIN CORP | APP | 03831W108 | $5.7M | 2.00% | 14,421 | SH |
| 11 | INVESCO EXCH TRADED FD TR II | IDMO | 46138E222 | $5.5M | 1.90% | 99,761 | SH |
| 12 | EMCOR GROUP INC | EME | 29084Q100 | $5.4M | 1.87% | 7,299 | SH |
| 13 | MICRON TECHNOLOGY INC | MU | 595112103 | $5.4M | 1.87% | 15,918 | SH |
| 14 | AMAZON COM INC | AMZN | 023135106 | $5.3M | 1.84% | 25,456 | SH |
| 15 | META PLATFORMS INC | META | 30303M102 | $5.2M | 1.80% | 9,055 | SH |
| 16 | AMPHENOL CORP | APH | 032095101 | $4.9M | 1.69% | 38,457 | SH |
| 17 | VISA INC | V | 92826C839 | $4.8M | 1.67% | 15,880 | SH |
| 18 | HARTFORD INSURANCE GROUP INC | HIG | 416515104 | $4.6M | 1.61% | 34,240 | SH |
| 19 | NORTHERN TR CORP | NTRS | 665859104 | $4.1M | 1.42% | 29,319 | SH |
| 20 | APPLIED MATLS INC | AMAT | 038222105 | $4.0M | 1.37% | 11,566 | SH |
| 21 | STATE STR SPDR S&P 500 ETF T | SPY | 78462F103 | $3.9M | 1.36% | 6,020 | SH |
| 22 | KLA CORP | KLAC | 482480100 | $3.9M | 1.35% | 2,637 | SH |
| 23 | AMERICAN EXPRESS CO | AXP | 025816109 | $3.8M | 1.32% | 12,571 | SH |
| 24 | ESQUIRE FINL HLDGS INC | ESQ | 29667J101 | $3.8M | 1.31% | 34,934 | SH |
| 25 | ISHARES TR | IWB | 464287622 | $3.7M | 1.30% | 10,511 | SH |
| 26 | VANGUARD WORLD FD | MGK | 921910816 | $3.7M | 1.29% | 10,101 | SH |
| 27 | STERLING INFRASTRUCTURE INC | STRL | 859241101 | $3.6M | 1.24% | 8,754 | SH |
| 28 | FIDELITY MERRIMACK STR TR | FBND | 316188309 | $3.6M | 1.24% | 78,031 | SH |
| 29 | CHUBB LTD SWITZ | CB | H1467J104 | $3.4M | 1.20% | 10,574 | SH |
| 30 | TE CONNECTIVITY PLC | TEL | G87052109 | $3.4M | 1.17% | 16,076 | SH |
| 31 | JABIL INC | JBL | 466313103 | $3.3M | 1.14% | 12,308 | SH |
| 32 | ELI LILLY & CO | LLY | 532457108 | $3.2M | 1.12% | 3,497 | SH |
| 33 | AMERICAN ELEC PWR CO INC | AEP | 025537101 | $3.0M | 1.04% | 22,739 | SH |
| 34 | PROGRESSIVE CORP | PGR | 743315103 | $3.0M | 1.03% | 14,931 | SH |
| 35 | ALPHABET INC | GOOG | 02079K107 | $2.8M | 0.97% | 9,708 | SH |
| 36 | FLOWSERVE CORP | FLS | 34354P105 | $2.6M | 0.92% | 35,968 | SH |
| 37 | TTM TECHNOLOGIES INC | TTMI | 87305R109 | $2.6M | 0.89% | 26,342 | SH |
| 38 | GLOBUS MED INC | GMED | 379577208 | $2.5M | 0.87% | 29,159 | SH |
| 39 | TECHNIPFMC PLC | FTI | G87110105 | $2.5M | 0.86% | 35,894 | SH |
| 40 | SCHWAB CHARLES CORP | SCHW | 808513105 | $2.5M | 0.85% | 26,099 | SH |
| 41 | BOOKING HOLDINGS INC | BKNG | 09857L108 | $2.4M | 0.82% | 560 | SH |
| 42 | VANGUARD WORLD FD | MGV | 921910840 | $2.3M | 0.81% | 16,004 | SH |
| 43 | ISHARES TR | IMCG | 464288307 | $2.1M | 0.74% | 26,930 | SH |
| 44 | AMEREN CORP | AEE | 023608102 | $2.1M | 0.72% | 18,920 | SH |
| 45 | EXPEDIA GROUP INC | EXPE | 30212P303 | $2.0M | 0.70% | 8,714 | SH |
| 46 | HALOZYME THERAPEUTICS INC | HALO | 40637H109 | $2.0M | 0.69% | 30,892 | SH |
| 47 | PHIBRO ANIMAL HEALTH CORP | PAHC | 71742Q106 | $2.0M | 0.69% | 35,726 | SH |
| 48 | FIDELITY COVINGTON TRUST | FESM | 31609A206 | $1.9M | 0.67% | 51,016 | SH |
| 49 | RESMED INC | RMD | 761152107 | $1.9M | 0.66% | 8,391 | SH |
| 50 | INVESCO EXCH TRADED FD TR II | SPMO | 46138E339 | $1.9M | 0.65% | 16,554 | SH |
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-03-31 | 2026-05-15 | $287.5M | 137 | 0001426940-26-000004 |
| 2025-12-31 | 2026-02-13 | $277.9M | 139 | 0001426940-26-000002 |
| 2025-09-30 | 2025-11-05 | $264.9M | 133 | 0001426940-25-000004 |