CIK: 0000894205
Total reported value
$724.4M
Reporting period: 2026-03-31 · Number of holdings: 80
PROFESSIONAL ADVISORY SERVICES INC disclosed 80 holdings in its latest 13F filing for the period ending 2026-03-31, with total reported value of $724.4M and a quarterly turnover rate of 12.9%.
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Professional Advisory Services INC's disclosed holdings carry a Herfindahl concentration index of 0.031 — mathematically equivalent to about 33 equally-sized positions, well below its 80 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 1.22), with a handful of outsized bets alongside many smaller positions.
Recent activity leans toward adding more aggressively to already-large existing positions than to newly initiated ones (a 2.3 percentage-point tilt) — a pattern consistent with a momentum-following approach.
Add IJH
+17.6% $4.4M
Add TMUS
+82.7% $5.1M
Trim FBIN
-11.2% -$5.3M
Add ADI
-1.5% $2.8M
Add SPGI
+41.4% $2.8M
Add AMD
+13.8% $1.7M
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | GOOG | Alphabet Inc-cl C | Stock-Comm Services | 4.87% | -0.40% | -4.95% | |
| 2 | MSFT | Microsoft CORP | Stock-Tech | 4.68% | -0.32% | +14.77% | |
| 3 | EMXC | Ishares Msci Emr Mrk Ex Chna | ETF-Other | 4.42% | +0.39% | -4.80% | |
| 4 | AMZN | Amazon.com INC | Stock-Consumer Disc | 4.42% | +0.10% | +6.36% | |
| 5 | BRK-B | Berkshire Hathaway Inc-cl B | Stock-Other | 4.07% | +0.30% | +6.45% | |
| 6 | TMO | Thermo Fisher Scientific INC | Stock-Healthcare | 4.00% | +0.17% | +15.67% | |
| 7 | IJH | Ishares Core S&p Midcap ETF | ETF-Other | 3.59% | +0.79% | +17.63% | |
| 8 | PEP | Pepsico INC | Stock-Consumer Staples | 3.57% | -0.04% | -14.31% | |
| 9 | AAPL | Apple INC | Stock-Tech | 3.34% | +0.02% | +1.00% | |
| 10 | BKNG | Booking Holdings INC | Stock-Consumer Disc | 3.32% | +0.35% | +33.42% | |
| 11 | J | Jacobs Solutions INC | Stock-Industrials | 3.31% | +0.26% | +6.14% | |
| 12 | ELV | Elevance Health INC | Stock-Healthcare | 3.11% | -0.25% | +3.92% | |
| 13 | AMD | Advanced Micro Devices | Stock-Tech | 3.10% | +0.41% | +13.79% | |
| 14 | TJX | Tjx Companies INC | Stock-Consumer Disc | 3.06% | +0.02% | -9.19% | |
| 15 | GD | General Dynamics CORP | Stock-Industrials | 3.05% | +0.12% | -3.92% | |
| 16 | USB | US Bancorp | Stock-Financials | 3.01% | — | +2.71% | |
| 17 | SPGI | S&p Global INC | Stock-Financials | 2.97% | +0.55% | +41.39% | |
| 18 | ADI | Analog Devices INC | Stock-Tech | 2.93% | +0.55% | -1.54% | |
| 19 | AJG | Arthur J Gallagher & Co | Stock-Financials | 2.90% | +0.27% | +23.75% | |
| 20 | SYK | Stryker CORP | Stock-Healthcare | 2.89% | — | +6.69% | |
| 21 | V | Visa Inc-class A Shares | Stock-Financials | 2.85% | -0.02% | +8.39% | |
| 22 | TFC | Truist Financial CORP | Stock-Financials | 2.62% | -0.11% | -3.68% | |
| 23 | SYY | Sysco CORP | Stock-Consumer Staples | 2.47% | -0.22% | -10.76% | |
| 24 | CARR | Carrier Global CORP | Stock-Industrials | 2.39% | +0.22% | -2.64% | |
| 25 | ACN | Accenture plc | Stock-Tech | 2.28% | -0.22% | +15.63% | |
| 26 | ADBE | Adobe INC | Stock-Tech | 2.13% | -0.06% | +31.13% | |
| 27 | T | At&t INC | Stock-Comm Services | 1.65% | -0.07% | -22.58% | |
| 28 | FBIN | Fortune Brands Innovations I | Stock-Industrials | 1.64% | -0.59% | -11.16% | |
| 29 | TMUS | T-mobile US INC | Stock-Comm Services | 1.50% | +0.75% | +82.66% | |
| 30 | LRCX | Lam Research CORP | Stock-Tech | 1.45% | -0.04% | -27.11% | |
| 31 | ASML | ASML Holding N.V. | Stock-Tech | 1.02% | -0.05% | -27.22% | |
| 32 | VCSH | Vanguard S/t CORP Bond ETF | ETF-Corp Bonds | 0.94% | +0.01% | -4.04% | |
| 33 | AMAT | Applied Materials INC | Stock-Tech | 0.94% | -0.08% | -35.21% | |
| 34 | JNJ | Johnson & Johnson | Stock-Healthcare | 0.62% | +0.13% | -0.33% | |
| 35 | VTI | Vanguard Total Stock Mkt ETF | ETF-Other | 0.50% | +0.01% | — | |
| 36 | GOOGL | Alphabet Inc-cl A | Stock-Comm Services | 0.40% | -0.01% | -0.16% | |
| 37 | SHV | Ishares 0-1 Year Treasury Bo | ETF-Gov Bonds | 0.36% | +0.14% | +52.55% | |
| 38 | VOO | Vanguard S&p 500 ETF | ETF-Large Cap & Growth | 0.24% | — | +0.83% | |
| 39 | PG | Procter & Gamble Co/the | Stock-Consumer Staples | 0.23% | — | — | |
| 40 | NVDA | Nvidia CORP | Stock-Tech | 0.21% | — | +2.78% | |
| 41 | RSP | Invesco S&p 500 Equal Weight | ETF-Large Cap & Growth | 0.20% | +0.02% | +6.78% | |
| 42 | XOM | Exxon Mobil CORP | Stock-Energy | 0.18% | +0.06% | +0.86% | |
| 43 | VBIL | Vanguard 0-3m T-bill ETF | ETF-Other | 0.16% | -0.04% | -21.13% | |
| 44 | SPY | Ss Spdr S&p 500 ETF Trust-us | ETF-Large Cap & Growth | 0.16% | -0.01% | -4.18% | |
| 45 | MRK | Merck & Co. INC. | Stock-Healthcare | 0.13% | +0.02% | — | |
| 46 | ORCL | Oracle CORP | Stock-Tech | 0.12% | -0.03% | — | |
| 47 | CVX | Chevron CORP | Stock-Energy | 0.11% | +0.03% | — | |
| 48 | BA | Boeing Co/the | Stock-Industrials | 0.10% | — | — | |
| 49 | BRK-A | Berkshire Hathaway Inc-cl A | Stock-Other | 0.10% | — | — | |
| 50 | IBM | Intl Business Machines CORP | Stock-Tech | 0.10% | -0.01% | — |
Performance for Q3 2026
+5.2%
Performance Last 4 Quarters
+21.4%
Based on 69% of reported portfolio value with available pricing
| Period | Holdings | Total value | Stability | Top holdings |
|---|---|---|---|---|
| 2026-03-31 | 80 | $724.4M | 13 | |
| 2025-12-31 | 80 | $771.6M | 14 | |
| 2025-09-30 | 81 | $768.3M | 32 | |
| 2025-06-30 | 84 | $737.1M | 0 | |
| 2025-03-31 | 83 | $714.0M | 100 | |
| 2024-12-31 | 78 | $724.5M | 0 | |
| 2024-09-30 | 81 | $761.7M | 0 | |
| 2024-06-30 | 78 | $732.3M | 0 | |
| 2024-03-31 | 77 | $736.9M | 0 | |
| 2023-12-31 | 73 | $699.8M | 0 | |
| 2023-09-30 | 67 | $608.0M | 0 | |
| 2023-06-30 | 72 | $658.7M | 0 | |
| 2023-03-31 | 76 | $641.7M | 0 | |
| 2022-12-31 | 77 | $614.4M | 0 | |
| 2022-09-30 | 71 | $575.7M | 0 | |
| 2022-06-30 | 72 | $600.0M | 0 | |
| 2022-03-31 | 80 | $696.5M | 0 | |
| 2021-12-31 | 80 | $735.3M | 0 | |
| 2021-09-30 | 78 | $681.0M | 0 | |
| 2021-06-30 | 80 | $688.7M | 14 | |
| 2021-03-31 | 70 | $652.9M | 10 | |
| 2020-12-31 | 71 | $622.0M | 13 | |
| 2020-09-30 | 65 | $560.2M | 15 | |
| 2020-06-30 | 64 | $519.8M | 30 | |
| 2020-03-31 | 63 | $431.0M | 43 | |
| 2019-12-31 | 71 | $561.5M | 17 | |
| 2019-09-30 | 68 | $526.1M | 8 | |
| 2019-06-30 | 64 | $515.7M | 11 | |
| 2019-03-31 | 68 | $497.8M | 18 | |
| 2018-12-31 | 67 | $449.0M | 25 | |
| 2018-09-30 | 67 | $507.1M | 10 | |
| 2018-06-30 | 64 | $484.6M | 11 | |
| 2018-03-31 | 64 | $462.0M | 25 | |
| 2017-12-31 | 62 | $474.2M | 18 | |
| 2017-09-30 | 62 | $469.4M | 6 | |
| 2017-06-30 | 58 | $461.0M | 13 | |
| 2017-03-31 | 60 | $451.8M | 22 | |
| 2016-12-31 | 59 | $430.0M | 9 | |
| 2016-09-30 | 58 | $438.7M | 18 | |
| 2016-06-30 | 57 | $437.1M | 14 | |
| 2016-03-31 | 57 | $423.0M | 12 | |
| 2015-12-31 | 58 | $419.2M | 37 | |
| 2015-09-30 | 56 | $398.5M | 24 | |
| 2015-06-30 | 59 | $417.4M | 10 | |
| 2015-03-31 | 57 | $416.4M | 39 | |
| 2014-12-31 | 59 | $429.1M | 11 | |
| 2014-09-30 | 60 | $413.5M | 18 | |
| 2014-06-30 | 61 | $411.9M | 18 | |
| 2014-03-31 | 50 | $400.8M | 17 | |
| 2013-12-31 | 47 | $384.8M | 22 | |
| 2013-09-30 | 46 | $354.6M | 20 | |
| 2013-06-30 | 47 | $334.8M | 0 |
Professional Advisory Services INC's most significant position changes for 2026-03-31: Sold out: Astrazeneca Plc-spons Adr (AZNN); New buy: Sprott Physical Silver Trust (PSLV); New buy: Sprott Physical Gold Trust (PHYS); Sold out: Veeva Systems Inc-class A (VEEV); Add: Ishares Core S&p Midcap ETF (IJH) — shares +17.63%.
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | IJH | Ishares Core S&p Midcap ETF | +0.8% | +17.63% | Add |
| 2 | TMUS | T-mobile US INC | +0.8% | +82.66% | Add |
| 3 | ADI | Analog Devices INC | +0.6% | -1.54% | Trim |
| 4 | SPGI | S&p Global INC | +0.6% | +41.39% | Add |
| 5 | AMD | Advanced Micro Devices | +0.4% | +13.79% | Add |
| 6 | EMXC | Ishares Msci Emr Mrk Ex Chna | +0.4% | -4.80% | Trim |
| 7 | BKNG | Booking Holdings INC | +0.4% | +33.42% | Add |
| 8 | BRK-B | Berkshire Hathaway Inc-cl B | +0.3% | +6.45% | Add |
| 9 | AJG | Arthur J Gallagher & Co | +0.3% | +23.75% | Add |
| 10 | J | Jacobs Solutions INC | +0.3% | +6.14% | Add |
| 11 | CARR | Carrier Global CORP | +0.2% | -2.64% | Trim |
| 12 | TMO | Thermo Fisher Scientific INC | +0.2% | +15.67% | Add |
| 13 | SHV | Ishares 0-1 Year Treasury Bo | +0.1% | +52.55% | Add |
| 14 | JNJ | Johnson & Johnson | +0.1% | -0.33% | Trim |
| 15 | GD | General Dynamics CORP | +0.1% | -3.92% | Trim |
| 16 | AMZN | Amazon.com INC | +0.1% | +6.36% | Add |
| 17 | XOM | Exxon Mobil CORP | +0.1% | +0.86% | Add |
| 18 | CVX | Chevron CORP | 0% | — | Unchanged |
| 19 | AAPL | Apple INC | 0% | +1.00% | Add |
| 20 | TJX | Tjx Companies INC | 0% | -9.19% | Trim |
| 21 | MPC | Marathon Petroleum CORP | 0% | — | Unchanged |
| 22 | MRK | Merck & Co. INC. | 0% | — | Unchanged |
| 23 | RSP | Invesco S&p 500 Equal Weight | 0% | +6.78% | Add |
| 24 | VCSH | Vanguard S/t CORP Bond ETF | 0% | -4.04% | Trim |
| 25 | VTI | Vanguard Total Stock Mkt ETF | 0% | — | Unchanged |
| 26 | PFE | Pfizer INC | 0% | — | Unchanged |
| 27 | GOOGL | Alphabet Inc-cl A | 0% | -0.16% | Trim |
| 28 | IBM | Intl Business Machines CORP | 0% | — | Unchanged |
| 29 | SPY | Ss Spdr S&p 500 ETF Trust-us | 0% | -4.18% | Trim |
| 30 | AXP | American Express Co | 0% | — | Unchanged |
| 31 | V | Visa Inc-class A Shares | 0% | +8.39% | Add |
| 32 | ORCL | Oracle CORP | 0% | — | Unchanged |
| 33 | PEP | Pepsico INC | 0% | -14.31% | Trim |
| 34 | LRCX | Lam Research CORP | 0% | -27.11% | Trim |
| 35 | VBIL | Vanguard 0-3m T-bill ETF | 0% | -21.13% | Trim |
| 36 | ASML | ASML Holding N.V. | -0.1% | -27.22% | Trim |
| 37 | ADBE | Adobe INC | -0.1% | +31.13% | Add |
| 38 | T | At&t INC | -0.1% | -22.58% | Trim |
| 39 | AMAT | Applied Materials INC | -0.1% | -35.21% | Trim |
| 40 | TFC | Truist Financial CORP | -0.1% | -3.68% | Trim |
| 41 | SYY | Sysco CORP | -0.2% | -10.76% | Trim |
| 42 | ACN | Accenture plc | -0.2% | +15.63% | Add |
| 43 | ELV | Elevance Health INC | -0.3% | +3.92% | Add |
| 44 | MSFT | Microsoft CORP | -0.3% | +14.77% | Add |
| 45 | GOOG | Alphabet Inc-cl C | -0.4% | -4.95% | Trim |
| 46 | FBIN | Fortune Brands Innovations I | -0.6% | -11.16% | Trim |
| 47 | AZNN | Astrazeneca Plc-spons Adr | — | EXIT | Sold out |
| 48 | PSLV | Sprott Physical Silver Trust | — | NEW | New buy |
| 49 | PHYS | Sprott Physical Gold Trust | — | NEW | New buy |
| 50 | VEEV | Veeva Systems Inc-class A | — | EXIT | Sold out |
| Period | Filed | Type | EDGAR |
|---|---|---|---|
| 2026-03-31 | 2026-04-15 | 13F-HR | View on EDGAR |
| 2025-12-31 | 2026-01-12 | 13F-HR | View on EDGAR |
| 2025-09-30 | 2025-10-29 | 13F-HR | View on EDGAR |
| 2025-06-30 | 2025-07-11 | 13F-HR | View on EDGAR |
| 2025-03-31 | 2025-04-14 | 13F-HR | View on EDGAR |
| 2024-12-31 | 2025-01-15 | 13F-HR | View on EDGAR |
| 2024-09-30 | 2024-10-17 | 13F-HR | View on EDGAR |
| 2024-06-30 | 2024-07-10 | 13F-HR | View on EDGAR |
| 2024-03-31 | 2024-04-22 | 13F-HR | View on EDGAR |
| 2023-12-31 | 2024-01-10 | 13F-HR | View on EDGAR |
| 2023-09-30 | 2023-10-10 | 13F-HR | View on EDGAR |
| 2023-06-30 | 2023-07-10 | 13F-HR | View on EDGAR |
| 2023-03-31 | 2023-04-11 | 13F-HR | View on EDGAR |
| 2022-12-31 | 2023-01-13 | 13F-HR | View on EDGAR |
| 2022-09-30 | 2022-10-11 | 13F-HR | View on EDGAR |
| 2022-06-30 | 2022-07-13 | 13F-HR | View on EDGAR |
| 2022-03-31 | 2022-04-18 | 13F-HR | View on EDGAR |
| 2021-12-31 | 2022-01-19 | 13F-HR | View on EDGAR |
| 2021-09-30 | 2021-10-05 | 13F-HR | View on EDGAR |
| 2021-06-30 | 2021-08-20 | 13F-HR | View on EDGAR |
| 2021-03-31 | 2021-04-26 | 13F-HR | View on EDGAR |
| 2020-12-31 | 2021-01-21 | 13F-HR | View on EDGAR |
| 2020-09-30 | 2020-10-19 | 13F-HR | View on EDGAR |
| 2020-06-30 | 2020-07-24 | 13F-HR | View on EDGAR |
| 2020-03-31 | 2020-04-23 | 13F-HR | View on EDGAR |
| 2019-12-31 | 2020-01-23 | 13F-HR | View on EDGAR |
| 2019-09-30 | 2019-10-28 | 13F-HR | View on EDGAR |
| 2019-06-30 | 2019-07-30 | 13F-HR | View on EDGAR |
| 2019-03-31 | 2019-04-29 | 13F-HR | View on EDGAR |
| 2018-12-31 | 2019-01-17 | 13F-HR | View on EDGAR |
| 2018-09-30 | 2018-10-25 | 13F-HR | View on EDGAR |
| 2018-06-30 | 2018-07-25 | 13F-HR | View on EDGAR |
| 2018-03-31 | 2018-04-24 | 13F-HR | View on EDGAR |
| 2017-12-31 | 2018-01-19 | 13F-HR | View on EDGAR |
| 2017-09-30 | 2017-10-12 | 13F-HR | View on EDGAR |
| 2017-06-30 | 2017-07-13 | 13F-HR | View on EDGAR |
| 2017-03-31 | 2017-04-19 | 13F-HR | View on EDGAR |
| 2016-12-31 | 2017-01-19 | 13F-HR | View on EDGAR |
| 2016-09-30 | 2016-10-20 | 13F-HR | View on EDGAR |
| 2016-06-30 | 2016-07-15 | 13F-HR | View on EDGAR |
| 2016-03-31 | 2016-04-15 | 13F-HR | View on EDGAR |
| 2015-12-31 | 2016-01-19 | 13F-HR | View on EDGAR |
| 2015-09-30 | 2015-10-26 | 13F-HR | View on EDGAR |
| 2015-06-30 | 2015-07-15 | 13F-HR | View on EDGAR |
| 2015-03-31 | 2015-04-20 | 13F-HR | View on EDGAR |
| 2014-12-31 | 2015-01-22 | 13F-HR | View on EDGAR |
| 2014-09-30 | 2014-10-21 | 13F-HR | View on EDGAR |
| 2014-06-30 | 2014-07-23 | 13F-HR | View on EDGAR |
| 2014-03-31 | 2014-04-08 | 13F-HR | View on EDGAR |
| 2013-12-31 | 2014-02-10 | 13F-HR | View on EDGAR |
| 2013-09-30 | 2013-10-18 | 13F-HR | View on EDGAR |
| 2013-06-30 | 2013-07-29 | 13F-HR | View on EDGAR |
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