WESTCO ADVISORY SERVICES INC /ADV — 13F Holdings & Portfolio
CIK 946310 · latest 13F-HR filed 2026-07-28
WESTCO ADVISORY SERVICES INC /ADV manages $165.7M in 13F-reported U.S. long-equity assets across 99 reported positions as of its 2026-06-30 13F-HR filing. Its largest disclosed positions are SPY (16.72%), AAPL (10.25%), GS (9.35%). Quarter over quarter (versus its 2025-12-31 filing) the fund opened 19 new positions, exited 13, added to 42, and trimmed 19.
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.
LYNBROOK, NY 11563
$165.7M
Long-equity book
99
Distinct positions
2026-06-30
Filed 2026-07-28
+19 / −13 / ↑42 / ↓19
vs 2025-12-31
| Name | Title / Status | Ownership | Type |
|---|
Top Adds (vs prior quarter)
- SEAGATE TECHNOLOGY HLDNGS PL$5.4M +233.6%
- GOLDMAN SACHS GROUP INC$1.4M +10.1%
- COMFORT SYS USA INC$1.4M +99.4%
- COSTCO WHOLESALE CORPORATION$703.4K +78.8%
- CELESTICA INC$533.5K +15.3%
Top Trims
- BLACKSTONE INC-$2.3M -67.0%
- MICROSOFT CORP-$2.1M -30.3%
- THERMO FISHER SCIENTIFIC INC-$599.1K -39.6%
- ROLLINS INC-$474.4K -47.7%
- ROBINHOOD MKTS INC-$460.3K -18.3%
New Positions
- MERCK & CO INC$1.4M
- DHT HOLDINGS INC$808.1K
- MODINE MFG CO$655.5K
- VANGUARD INDEX FDS$448.5K
- VERTIV HOLDINGS CO$446.0K
Exited Positions
- BANK AMERICA CORP$2.5M
- TRACTOR SUPPLY CO$2.5M
- AUTOMATIC DATA PROCESSING IN$2.0M
- ARES MANAGEMENT CORPORATION$1.2M
- GRAYSCALE BITCOIN TRUST ETF$591.2K
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 | STATE STR SPDR S&P 500 ETF T | SPY | 78462F103 | $27.7M | 16.72% | 37,092 | SH |
| 2 | APPLE INC | AAPL | 037833100 | $17.0M | 10.25% | 58,715 | SH |
| 3 | GOLDMAN SACHS GROUP INC | GS | 38141G104 | $15.5M | 9.35% | 15,318 | SH |
| 4 | JPMORGAN CHASE & CO | JPM | 46625H100 | $9.5M | 5.76% | 29,166 | SH |
| 5 | SEAGATE TECHNOLOGY HLDNGS PL | STX | G7997R103 | $7.7M | 4.63% | 7,950 | SH |
| 6 | BERKSHIRE HATHAWAY INC DEL | BRK.B | 084670702 | $5.6M | 3.35% | 11,104 | SH |
| 7 | MICROSOFT CORP | MSFT | 594918104 | $4.9M | 2.98% | 13,231 | SH |
| 8 | CELESTICA INC | CLS | 15101Q207 | $4.0M | 2.43% | 11,047 | SH |
| 9 | ALPHABET INC | GOOGL | 02079K305 | $3.3M | 1.97% | 9,145 | SH |
| 10 | OLD DOMINION FREIGHT LINE IN | ODFL | 679580100 | $3.1M | 1.89% | 14,490 | SH |
| 11 | COMFORT SYS USA INC | FIX | 199908104 | $2.8M | 1.66% | 1,390 | SH |
| 12 | BROADCOM INC | AVGO | 11135F101 | $2.3M | 1.41% | 6,203 | SH |
| 13 | OUTFRONT MEDIA INC | OUT | 69007J304 | $2.3M | 1.40% | 70,630 | SH |
| 14 | ELI LILLY & CO | LLY | 532457108 | $2.2M | 1.33% | 1,841 | SH |
| 15 | VISA INC | V | 92826C839 | $2.1M | 1.26% | 6,082 | SH |
| 16 | ROBINHOOD MKTS INC | HOOD | 770700102 | $2.1M | 1.24% | 20,525 | SH |
| 17 | NVIDIA CORPORATION | NVDA | 67066G104 | $1.8M | 1.11% | 9,197 | SH |
| 18 | SPDR GOLD TR | GLD | 78463V107 | $1.8M | 1.10% | 4,937 | SH |
| 19 | BANK OF NY MELLON CORP | BNY | 064058100 | $1.8M | 1.08% | 12,335 | SH |
| 20 | LAMAR ADVERTISING CO | LAMR | 512816109 | $1.7M | 1.02% | 10,858 | SH |
| 21 | MORGAN STANLEY | MS | 617446448 | $1.7M | 1.00% | 7,920 | SH |
| 22 | CINTAS CORP | CTAS | 172908105 | $1.6M | 0.98% | 9,516 | SH |
| 23 | COSTCO WHOLESALE CORPORATION | COST | 22160K105 | $1.6M | 0.96% | 1,706 | SH |
| 24 | MERCK & CO INC | MRK | 58933Y105 | $1.4M | 0.82% | 10,558 | SH |
| 25 | BLACKROCK INC | BLK | 09290D101 | $1.3M | 0.80% | 1,376 | SH |
| 26 | AMGEN INC | AMGN | 031162100 | $1.3M | 0.78% | 3,562 | SH |
| 27 | SCHWAB STRATEGIC TR | SCHX | 808524201 | $1.3M | 0.76% | 42,959 | SH |
| 28 | CHEVRON CORPORATION | CVX | 166764100 | $1.2M | 0.75% | 7,455 | SH |
| 29 | MANULIFE FINL CORP | MFC | 56501R106 | $1.2M | 0.72% | 29,613 | SH |
| 30 | ISHARES TR | IUSG | 464287671 | $1.2M | 0.71% | 6,221 | SH |
| 31 | BLACKSTONE INC | BX | 09260D107 | $1.2M | 0.70% | 9,819 | SH |
| 32 | WILLIAMS COS INC | WMB | 969457100 | $1.1M | 0.68% | 15,096 | SH |
| 33 | VERTEX PHARMACEUTICALS INC | VRTX | 92532F100 | $992.0K | 0.60% | 1,997 | SH |
| 34 | ISHARES TR | IWY | 464289438 | $927.7K | 0.56% | 3,192 | SH |
| 35 | THERMO FISHER SCIENTIFIC INC | TMO | 883556102 | $915.0K | 0.55% | 1,825 | SH |
| 36 | CHURCH & DWIGHT CO INC | CHD | 171340102 | $887.0K | 0.54% | 9,156 | SH |
| 37 | ABBVIE INC | ABBV | 00287Y109 | $813.8K | 0.49% | 3,234 | SH |
| 38 | CENCORA INC | COR | 03073E105 | $808.2K | 0.49% | 2,856 | SH |
| 39 | DHT HOLDINGS INC | DHT | Y2065G121 | $808.1K | 0.49% | 48,885 | SH |
| 40 | CINCINNATI FINL CORP | CINF | 172062101 | $799.2K | 0.48% | 4,317 | SH |
| 41 | MCDONALDS CORP | MCD | 580135101 | $700.1K | 0.42% | 2,590 | SH |
| 42 | CATERPILLAR INC | CAT | 149123101 | $697.5K | 0.42% | 655 | SH |
| 43 | FIDELITY COVINGTON TRUST | FFLC | 316092360 | $693.0K | 0.42% | 11,764 | SH |
| 44 | SPDR SERIES TRUST | SPMD | 78464A847 | $684.2K | 0.41% | 10,127 | SH |
| 45 | ILLINOIS TOOL WKS INC | ITW | 452308109 | $668.9K | 0.40% | 2,473 | SH |
| 46 | MODINE MFG CO | MOD | 607828100 | $655.5K | 0.40% | 2,455 | SH |
| 47 | AMPHENOL CORP | APH | 032095101 | $630.3K | 0.38% | 3,575 | SH |
| 48 | INVESCO EXCH TRADED FD TR II | SOXQ | 46138G615 | $611.3K | 0.37% | 5,453 | SH |
| 49 | SPDR SERIES TRUST | SDY | 78464A763 | $602.2K | 0.36% | 3,957 | SH |
| 50 | GENERAL DYNAMICS CORP | GD | 369550108 | $599.7K | 0.36% | 1,693 | SH |
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-06-30 | 2026-07-28 | $165.7M | 99 | 0002085853-26-000889 |
| 2026-03-31 | 2026-05-11 | $155.5M | 104 | 0002085853-26-000578 |
| 2025-12-31 | 2026-05-13 | $162.7M | 93 | 0002085853-26-000588 |