CIK: 0000946310
Total reported value
$155.5M
Reporting period: 2026-03-31 · Number of holdings: 104
WESTCO ADVISORY SERVICES INC /ADV disclosed 104 holdings in its latest 13F filing for the period ending 2026-03-31, with total reported value of $155.5M and a quarterly turnover rate of 21.4%.
Browse other institutions with $100M to $1B AUMBrowse other institutions starting with "W"
Westco Advisory Services INC /adv's disclosed holdings carry a Herfindahl concentration index of 0.055 — mathematically equivalent to about 18 equally-sized positions, well below its 104 actual disclosed holdings. That gap points to a strategy built around a small core of high-conviction bets rather than broad diversification.
Position sizes vary widely across the portfolio (a coefficient of variation of 2.19), with a handful of outsized bets alongside many smaller positions.
No strong tilt toward either adding to existing winners or initiating outsized new positions was observed in the latest reported quarter.
Trim BX
-55.3% -$2.3M
Trim MSFT
-0.4% -$1.7M
Add STX
-0.5% $956.1K
Trim AAPL
-3.5% -$1.7M
Trim HOOD
-3.0% -$1.0M
Add COST
+67.6% $836.3K
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | SPY | Ss Spdr S&p 500 ETF Trust-us | ETF-Large Cap & Growth | 16.60% | -0.42% | -2.29% | |
| 2 | AAPL | Apple INC | Stock-Tech | 9.83% | -0.60% | -3.53% | |
| 3 | GS | Goldman Sachs Group INC | Stock-Financials | 8.72% | +0.07% | +0.11% | |
| 4 | JPM | Jpmorgan Chase & Co | Stock-Financials | 5.75% | -0.36% | -1.53% | |
| 5 | BRK-B | Berkshire Hathaway Inc-cl B | Stock-Other | 3.58% | -0.07% | -1.59% | |
| 6 | MSFT | Microsoft CORP | Stock-Tech | 3.47% | -0.88% | -0.40% | |
| 7 | CLS | Celestica INC | Stock-Tech | 2.11% | -0.04% | -1.69% | |
| 8 | STX | Seagate Technology Holdings plc | Stock-Tech | 2.09% | +0.68% | -0.48% | |
| 9 | ODFL | Old Dominion Freight Line | Stock-Industrials | 1.89% | +0.29% | -9.41% | |
| 10 | GOOGL | Alphabet Inc-cl A | Stock-Comm Services | 1.81% | -0.11% | -1.64% | |
| 11 | GLD | Spdr Gold Shares | ETF-Commodities | 1.48% | — | -1.85% | |
| 12 | TSCO | Tractor Supply Company | Stock-Consumer Disc | 1.41% | -0.11% | -1.96% | |
| 13 | BAC | Bank Of America CORP | Stock-Financials | 1.40% | -0.13% | -1.63% | |
| 14 | FIX | Comfort Systems USA INC | Stock-Industrials | 1.31% | +0.46% | — | |
| 15 | OUT | Outfront Media INC | Stock-Other | 1.27% | — | -2.84% | |
| 16 | AVGO | Broadcom INC | Stock-Tech | 1.22% | -0.08% | -0.16% | |
| 17 | V | Visa Inc-class A Shares | Stock-Financials | 1.19% | -0.31% | -11.52% | |
| 18 | LLY | Eli Lilly & Co | Stock-Healthcare | 1.17% | -0.19% | -4.65% | |
| 19 | COST | Costco Wholesale CORP | Stock-Consumer Staples | 1.11% | +0.56% | +67.63% | |
| 20 | NVDA | Nvidia CORP | Stock-Tech | 1.07% | — | -0.70% | |
| 21 | CTAS | Cintas CORP | Stock-Industrials | 1.04% | -0.10% | -2.91% | |
| 22 | CVX | Chevron CORP | Stock-Energy | 1.04% | +0.53% | +42.07% | |
| 23 | HOOD | Robinhood Markets INC - A | Stock-Financials | 0.96% | -0.59% | -3.03% | |
| 24 | BNY | Bank Of New York Mellon CORP | Stock-Financials | 0.91% | — | -1.47% | |
| 25 | LAMR | Lamar Advertising Co-a | Stock-Real Estate | 0.90% | — | -1.69% | |
| 26 | AMGN | Amgen INC | Stock-Healthcare | 0.88% | — | +4.78% | |
| 27 | BLK | Blackrock INC | Stock-Financials | 0.85% | — | — | |
| 28 | MRK | Merck & Co. INC. | Stock-Healthcare | 0.84% | +0.84% | NEW | |
| 29 | MS | Morgan Stanley | Stock-Financials | 0.78% | — | -0.27% | |
| 30 | TMO | Thermo Fisher Scientific INC | Stock-Healthcare | 0.76% | -0.17% | -8.50% | |
| 31 | BX | Blackstone INC | Stock-Financials | 0.75% | -1.40% | -55.27% | |
| 32 | SCHX | Schwab US Large-cap ETF | ETF-Other | 0.72% | — | -3.15% | |
| 33 | WMB | Williams Cos INC | Stock-Energy | 0.72% | — | -2.58% | |
| 34 | MFC | Manulife Financial CORP | Stock-Financials | 0.68% | — | -3.44% | |
| 35 | IUSG | Ishares Core S&p U.s. Growth | ETF-Other | 0.64% | — | -2.75% | |
| 36 | COR | Cencora INC | Stock-Healthcare | 0.63% | — | -3.63% | |
| 37 | DHT | DHT Holdings, Inc. | Stock-Other | 0.60% | +0.60% | NEW | |
| 38 | MCD | Mcdonald's CORP | Stock-Consumer Disc | 0.59% | — | — | |
| 39 | VRTX | Vertex Pharmaceuticals INC | Stock-Healthcare | 0.59% | — | -3.94% | |
| 40 | ROL | Rollins INC | Stock-Consumer Disc | 0.56% | — | -0.94% | |
| 41 | CHD | Church & Dwight Co INC | Stock-Consumer Staples | 0.55% | — | -0.17% | |
| 42 | IWY | Ishares Russell Top 200 Grow | ETF-Other | 0.54% | — | +4.49% | |
| 43 | ITW | Illinois Tool Works | Stock-Industrials | 0.53% | — | -5.75% | |
| 44 | ABBV | Abbvie INC | Stock-Healthcare | 0.47% | — | — | |
| 45 | CINF | Cincinnati Financial CORP | Stock-Financials | 0.45% | — | -0.56% | |
| 46 | GIL | Gildan Activewear INC | Stock-Consumer Disc | 0.40% | +0.40% | NEW | |
| 47 | SPMD | Ss Spdr P S&p 400 Midcap ETF | ETF-Other | 0.40% | — | -2.10% | |
| 48 | FFLC | Fidelity Fndmntl L/c Cor ETF | ETF-Other | 0.39% | — | -0.95% | |
| 49 | GD | General Dynamics CORP | Stock-Industrials | 0.38% | — | -1.20% | |
| 50 | SDY | Ss Spdr S&p Dividend ETF | ETF-Other | 0.38% | — | +0.50% |
Performance for Q3 2026
+5.8%
Performance Last 4 Quarters
+11.4%
Based on 5 months of available history
Based on 79% of reported portfolio value with available pricing
Westco Advisory Services INC /adv's most significant position changes for 2026-03-31: Sold out: Automatic Data Processing (ADP); New buy: Merck & Co. INC. (MRK); Sold out: Ares Management CORP - A (ARES); New buy: DHT Holdings, Inc. (DHT); New buy: Gildan Activewear INC (GIL).
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | STX | Seagate Technology Holdings plc | +0.7% | -0.48% | Trim |
| 2 | COST | Costco Wholesale CORP | +0.6% | +67.63% | Add |
| 3 | CVX | Chevron CORP | +0.5% | +42.07% | Add |
| 4 | FIX | Comfort Systems USA INC | +0.5% | — | Unchanged |
| 5 | ODFL | Old Dominion Freight Line | +0.3% | -9.41% | Trim |
| 6 | GS | Goldman Sachs Group INC | +0.1% | +0.11% | Add |
| 7 | CLS | Celestica INC | 0% | -1.69% | Trim |
| 8 | BRK-B | Berkshire Hathaway Inc-cl B | -0.1% | -1.59% | Trim |
| 9 | AVGO | Broadcom INC | -0.1% | -0.16% | Trim |
| 10 | CTAS | Cintas CORP | -0.1% | -2.91% | Trim |
| 11 | GOOGL | Alphabet Inc-cl A | -0.1% | -1.64% | Trim |
| 12 | TSCO | Tractor Supply Company | -0.1% | -1.96% | Trim |
| 13 | BAC | Bank Of America CORP | -0.1% | -1.63% | Trim |
| 14 | TMO | Thermo Fisher Scientific INC | -0.2% | -8.50% | Trim |
| 15 | LLY | Eli Lilly & Co | -0.2% | -4.65% | Trim |
| 16 | V | Visa Inc-class A Shares | -0.3% | -11.52% | Trim |
| 17 | JPM | Jpmorgan Chase & Co | -0.4% | -1.53% | Trim |
| 18 | SPY | Ss Spdr S&p 500 ETF Trust-us | -0.4% | -2.29% | Trim |
| 19 | HOOD | Robinhood Markets INC - A | -0.6% | -3.03% | Trim |
| 20 | AAPL | Apple INC | -0.6% | -3.53% | Trim |
| 21 | MSFT | Microsoft CORP | -0.9% | -0.40% | Trim |
| 22 | BX | Blackstone INC | -1.4% | -55.27% | Trim |
| 23 | ADP | Automatic Data Processing | — | EXIT | Sold out |
| 24 | MRK | Merck & Co. INC. | — | NEW | New buy |
| 25 | ARES | Ares Management CORP - A | — | EXIT | Sold out |
| 26 | DHT | DHT Holdings, Inc. | — | NEW | New buy |
| 27 | GIL | Gildan Activewear INC | — | NEW | New buy |
| 28 | GBTC | Grayscale Bitcoin Trust ETF | — | EXIT | Sold out |
| 29 | MOD | Modine Manufacturing Co | — | NEW | New buy |
| 30 | BTC | Grayscale Bitcoin Mini ETF | — | NEW | New buy |
| 31 | PAGP | Plains Gp Holdings Lp-cl A | — | NEW | New buy |
| 32 | KMI | Kinder Morgan INC | — | NEW | New buy |
| 33 | VOO | Vanguard S&p 500 ETF | — | NEW | New buy |
| 34 | KO | Coca-cola Co/the | — | NEW | New buy |
| 35 | FTI | TechnipFMC plc | — | NEW | New buy |
| 36 | HON | Honeywell International INC | — | NEW | New buy |
| 37 | VRT | Vertiv Holdings Co-a | — | NEW | New buy |
| 38 | PAYX | Paychex INC | — | EXIT | Sold out |
| 39 | DRI | Darden Restaurants INC | — | NEW | New buy |
| 40 | MRSH | Marsh & Mclennan Cos | — | EXIT | Sold out |
| 41 | ICVT | Ishares Convertible Bond ETF | — | NEW | New buy |
| 42 | AIR | Aar CORP | — | NEW | New buy |
| 43 | ABT | Abbott Laboratories | — | EXIT | Sold out |
| 44 | GSK | Gsk Plc-spon Adr | — | NEW | New buy |
| 45 | ORCL | Oracle CORP | — | EXIT | Sold out |
| 46 | PAHC | Phibro Animal Health Corp-a | — | NEW | New buy |
| 47 | WTW | Willis Towers Watson Public Limited Company | — | EXIT | Sold out |
| 48 | SPLV | Invesco S&p 500 Low Volatili | — | NEW | New buy |
| 49 | T | At&t INC | — | NEW | New buy |
| 50 | UHS | Universal Health Services-b | — | EXIT | Sold out |
| Period | Filed | Type | EDGAR |
|---|---|---|---|
| 2026-03-31 | 2026-05-11 | 13F-HR | View on EDGAR |
| 2025-12-31 | 2026-05-13 | 13F-HR | View on EDGAR |
Institutions with a similar AUM
CIK 0002060772
Total reported value
$155.5M
68 stks
2026-03-31
AUM within 0.0% of this institution
CIK 0002132683
Total reported value
$155.4M
24 stks
2026-03-31
AUM within 0.0% of this institution
CIK 0001589570
Total reported value
$155.4M
17 stks
2020-09-30
Stale — no recent filing
AUM within 0.0% of this institution
Institutions with overlapping top holdings
CIK 0000036966
Total reported value
$2.4B
2,094 stks
2026-03-31
3 of the top 5 holdings overlap, including Ss Spdr S&p 500 ETF Trust-us
CIK 0000939835
Total reported value
$423.3M
192 stks
2024-03-31
Stale — no recent filing
3 of the top 5 holdings overlap, including Apple INC
CIK 0001006435
Total reported value
$412.1M
134 stks
2026-03-31
3 of the top 5 holdings overlap, including Apple INC