PA
Professional Advisory Services Inc 13F Holdings & Position Changes (Q2 2026)
Professional Advisory Services IncCIK: 0000894205
Diversified strategyLong-term holderQuality / disciplined sizing
Total reported value
$835.7M
Reporting period: 2026-06-30 · Number of holdings: 93
PROFESSIONAL ADVISORY SERVICES INC disclosed 93 holdings in its latest 13F filing for the period ending 2026-06-30, with total reported value of $835.7M and a quarterly turnover rate of 0.0%.
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Personality snowflake
- Concentration
- 12.2
- Portfolio Stability
- 0
- Momentum
- 50
- Sector conviction
- 51.04
- Diversification
- 100
- Sizing Uniformity
- 86.38
Professional Advisory Services Inc's disclosed holdings carry a Herfindahl concentration index of 0.030 — mathematically equivalent to about 33 equally-sized positions, well below its 93 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 1.36), 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.
Source and citation information
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Recent moves
View source Form 13F filing on SEC.govNew buy APH
New buy AZN
Sold out ACN
Sold out FBIN
Sold out TMUS
Trim EMXC
-32.4% -$3.9M
Holdings Map
New buyAddUnchangedTrim
Top 10 holdings by weight
Full holdings list this quarter
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | GOOG | Alphabet Inc-cl C | Stock-Comm Services | 4.81% | -0.06% | -7.65% | |
| 2 | MSFT | Microsoft CORP | Stock-Tech | 4.14% | -0.54% | +1.24% | |
| 3 | AMZN | Amazon.com Inc | Stock-Consumer Disc | 4.13% | -0.29% | -5.67% | |
| 4 | TMO | Thermo Fisher Scientific Inc | Stock-Healthcare | 3.89% | -0.11% | +9.83% | |
| 5 | BRK-B | Berkshire Hathaway Inc-cl B | Stock-Other | 3.86% | -0.21% | +4.57% | |
| 6 | APH | Amphenol Corp-cl A | Stock-Tech | 3.82% | +3.82% | NEW | |
| 7 | AZN | AstraZeneca PLC | Stock-Healthcare | 3.62% | +3.62% | NEW | |
| 8 | IJH | Ishares Core S&p Midcap ETF | ETF-Other | 3.59% | — | +1.22% | |
| 9 | AMD | Advanced Micro Devices | Stock-Tech | 3.55% | +0.45% | -53.73% | |
| 10 | AAPL | Apple Inc | Stock-Tech | 3.44% | +0.10% | +4.19% | |
| 11 | EMXC | Ishares Msci Emr Mrk Ex Chna | ETF-Other | 3.37% | -1.05% | -32.39% | |
| 12 | J | Jacobs Solutions Inc | Stock-Industrials | 3.22% | -0.09% | +13.37% | |
| 13 | ELV | Elevance Health Inc | Stock-Healthcare | 3.18% | +0.07% | -10.71% | |
| 14 | PEP | Pepsico Inc | Stock-Consumer Staples | 3.16% | -0.41% | +17.04% | |
| 15 | SYK | Stryker CORP | Stock-Healthcare | 3.14% | +0.25% | +31.05% | |
| 16 | BKNG | Booking Holdings Inc | Stock-Consumer Disc | 3.06% | -0.26% | +2412.38% | |
| 17 | SYY | Sysco CORP | Stock-Consumer Staples | 2.99% | +0.52% | +19.02% | |
| 18 | AJG | Arthur J Gallagher & Co | Stock-Financials | 2.98% | +0.08% | +11.71% | |
| 19 | USB | US Bancorp | Stock-Financials | 2.92% | -0.09% | -3.70% | |
| 20 | V | Visa Inc-class A Shares | Stock-Financials | 2.91% | +0.06% | +3.61% | |
| 21 | GD | General Dynamics CORP | Stock-Industrials | 2.84% | -0.21% | +3.97% | |
| 22 | SPGI | S&p Global Inc | Stock-Financials | 2.72% | -0.25% | +10.35% | |
| 23 | CARR | Carrier Global CORP | Stock-Industrials | 2.65% | +0.26% | -1.98% | |
| 24 | ADI | Analog Devices Inc | Stock-Tech | 2.63% | -0.30% | -17.02% | |
| 25 | TJX | Tjx Companies Inc | Stock-Consumer Disc | 2.59% | -0.47% | +2.76% | |
| 26 | T | At&t Inc | Stock-Comm Services | 2.48% | +0.83% | +142.28% | |
| 27 | TFC | Truist Financial CORP | Stock-Financials | 2.28% | -0.34% | -7.21% | |
| 28 | ADBE | Adobe Inc | Stock-Tech | 1.62% | -0.51% | +3.91% | |
| 29 | LRCX | Lam Research CORP | Stock-Tech | 1.61% | +0.16% | -36.62% | |
| 30 | AMAT | Applied Materials Inc | Stock-Tech | 1.14% | +0.20% | -33.49% | |
| 31 | ASML | ASML Holding N.V. | Stock-Tech | 1.04% | +0.02% | -22.36% | |
| 32 | VCSH | Vanguard S/t CORP Bond ETF | ETF-Corp Bonds | 0.74% | -0.20% | -9.44% | |
| 33 | JNJ | Johnson & Johnson | Stock-Healthcare | 0.55% | -0.07% | -0.26% | |
| 34 | VTI | Vanguard Total Stock Mkt ETF | ETF-Other | 0.50% | — | — | |
| 35 | GOOGL | Alphabet Inc-cl A | Stock-Comm Services | 0.47% | +0.07% | +9.19% | |
| 36 | VOO | Vanguard S&p 500 ETF | ETF-Large Cap & Growth | 0.26% | +0.02% | +9.73% | |
| 37 | NVDA | Nvidia CORP | Stock-Tech | 0.24% | +0.03% | +14.49% | |
| 38 | RSP | Invesco S&p 500 Equal Weight | ETF-Large Cap & Growth | 0.24% | +0.04% | +20.93% | |
| 39 | PG | Procter & Gamble Co/the | Stock-Consumer Staples | 0.20% | -0.03% | +0.43% | |
| 40 | SHV | Ishares 0-1 Year Treasury Bo | ETF-Gov Bonds | 0.17% | -0.19% | -46.65% | |
| 41 | SPY | Ss Spdr S&p 500 ETF Trust-us | ETF-Large Cap & Growth | 0.15% | -0.01% | -4.42% | |
| 42 | VBIL | Vanguard 0-3m T-bill ETF | ETF-Other | 0.14% | -0.02% | — | |
| 43 | ROK | Rockwell Automation Inc | Stock-Industrials | 0.14% | +0.10% | +176.47% | |
| 44 | ABBV | Abbvie Inc | Stock-Healthcare | 0.14% | +0.05% | +50.00% | |
| 45 | XOM | Exxon Mobil CORP | Stock-Energy | 0.13% | -0.05% | — | |
| 46 | MRK | Merck & Co. Inc. | Stock-Healthcare | 0.12% | -0.01% | — | |
| 47 | HD | Home Depot Inc | Stock-Consumer Disc | 0.11% | +0.03% | +40.00% | |
| 48 | CSCO | Cisco Systems Inc | Stock-Tech | 0.11% | +0.03% | — | |
| 49 | IVV | Ishares Core S&p 500 ETF | ETF-Large Cap & Growth | 0.10% | +0.10% | NEW | |
| 50 | ORCL | Oracle CORP | Stock-Tech | 0.10% | -0.02% | — |
1–50 of 93
Portfolio Performance
Performance for Q3 2026
+4.3%
Performance Last 4 Quarters
+20.4%
- Stdev
- +13.1%
- Beta
- +0.92
- Alpha
- -4.5%
- Max Drawdown
- -8.3%
- Annualized Perf
- +14%
- Batting Avg vs S&P
- +41.7%
- Sortino
- +1.97
- Stutzer
- +0.32
- Treynor
- +0.15
- Sterling
- +0.84
- Calmar
- +1.68
- Information Ratio
- -1.12
- Tracking Error
- +5.4%
- Stdev Down
- +7.1%
- Winning Months %
- +69.4%
- Losing Months %
- +30.6%
- Best 12 Months
- +26%
- Worst 12 Months
- +0.8%
- Efficiency Ratio
- +0.43
- Sharpe
- +1.07
- Stdev Sectors
- +8.1%
- Skewness
- +0.19
- Kurtosis
- +0.61
- Upside Potential
- +3.61
Reported value over time
Sector allocation
Sector allocation over time
Quarterly history
| Period | Holdings | Total value | Stability | Top holdings | |
|---|---|---|---|---|---|
| 2026 Q2 | 93 | $835.7M | 0 | ||
| 2026 Q1 | 80 | $724.4M | 13 | ||
| 2025 Q4 | 80 | $771.6M | 14 | ||
| 2025 Q3 | 81 | $768.3M | 32 | ||
| 2025 Q2 | 84 | $737.1M | 0 | ||
| 2025 Q1 | 83 | $714.0M | 100 | ||
| 2024 Q4 | 78 | $724.5M | 0 | ||
| 2024 Q3 | 81 | $761.7M | 0 | ||
| 2024 Q2 | 78 | $732.3M | 0 | ||
| 2024 Q1 | 77 | $736.9M | 0 | ||
| 2023 Q4 | 73 | $699.8M | 0 | ||
| 2023 Q3 | 67 | $608.0M | 0 | ||
| 2023 Q2 | 72 | $658.7M | 0 | ||
| 2023 Q1 | 76 | $641.7M | 0 | ||
| 2022 Q4 | 77 | $614.4M | 0 | ||
| 2022 Q3 | 71 | $575.7M | 0 | ||
| 2022 Q2 | 72 | $600.0M | 0 | ||
| 2022 Q1 | 80 | $696.5M | 0 | ||
| 2021 Q4 | 80 | $735.3M | 0 | ||
| 2021 Q3 | 78 | $681.0M | 0 | ||
| 2021 Q2 | 80 | $688.7M | 14 | ||
| 2021 Q1 | 70 | $652.9M | 10 | ||
| 2020 Q4 | 71 | $622.0M | 13 | ||
| 2020 Q3 | 65 | $560.2M | 15 | ||
| 2020 Q2 | 64 | $519.8M | 30 | ||
| 2020 Q1 | 63 | $431.0M | 43 | ||
| 2019 Q4 | 71 | $561.5M | 17 | ||
| 2019 Q3 | 68 | $526.1M | 8 | ||
| 2019 Q2 | 64 | $515.7M | 11 | ||
| 2019 Q1 | 68 | $497.8M | 18 | ||
| 2018 Q4 | 67 | $449.0M | 25 | ||
| 2018 Q3 | 67 | $507.1M | 10 | ||
| 2018 Q2 | 64 | $484.6M | 11 | ||
| 2018 Q1 | 64 | $462.0M | 25 | ||
| 2017 Q4 | 62 | $474.2M | 18 | ||
| 2017 Q3 | 62 | $469.4M | 6 | ||
| 2017 Q2 | 58 | $461.0M | 13 | ||
| 2017 Q1 | 60 | $451.8M | 22 | ||
| 2016 Q4 | 59 | $430.0M | 9 | ||
| 2016 Q3 | 58 | $438.7M | 18 | ||
| 2016 Q2 | 57 | $437.1M | 14 | ||
| 2016 Q1 | 57 | $423.0M | 12 | ||
| 2015 Q4 | 58 | $419.2M | 37 | ||
| 2015 Q3 | 56 | $398.5M | 24 | ||
| 2015 Q2 | 59 | $417.4M | 10 | ||
| 2015 Q1 | 57 | $416.4M | 39 | ||
| 2014 Q4 | 59 | $429.1M | 11 | ||
| 2014 Q3 | 60 | $413.5M | 18 | ||
| 2014 Q2 | 61 | $411.9M | 18 | ||
| 2014 Q1 | 50 | $400.8M | 17 | ||
| 2013 Q4 | 47 | $384.8M | 22 | ||
| 2013 Q3 | 46 | $354.6M | 20 | ||
| 2013 Q2 | 47 | $334.8M | 0 |
Holding changes this quarter
Professional Advisory Services Inc's most significant position changes for 2026-06-30: New buy: Amphenol Corp-cl A (APH); New buy: AstraZeneca PLC (AZN); Sold out: Accenture plc (ACN); Sold out: Fortune Brands Innovations I (FBIN); Sold out: T-mobile US Inc (TMUS).
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | APH | Amphenol Corp-cl A | +3.8% | NEW | New buy |
| 2 | AZN | AstraZeneca PLC | +3.6% | NEW | New buy |
| 3 | T | At&t Inc | +0.8% | +142.28% | Add |
| 4 | SYY | Sysco CORP | +0.5% | +19.02% | Add |
| 5 | AMD | Advanced Micro Devices | +0.5% | -53.73% | Trim |
| 6 | CARR | Carrier Global CORP | +0.3% | -1.98% | Trim |
| 7 | SYK | Stryker CORP | +0.3% | +31.05% | Add |
| 8 | AMAT | Applied Materials Inc | +0.2% | -33.49% | Trim |
| 9 | LRCX | Lam Research CORP | +0.2% | -36.62% | Trim |
| 10 | AAPL | Apple Inc | +0.1% | +4.19% | Add |
| 11 | ROK | Rockwell Automation Inc | +0.1% | +176.47% | Add |
| 12 | IVV | Ishares Core S&p 500 ETF | +0.1% | NEW | New buy |
| 13 | AVGO | Broadcom Inc | +0.1% | NEW | New buy |
| 14 | AJG | Arthur J Gallagher & Co | +0.1% | +11.71% | Add |
| 15 | ELV | Elevance Health Inc | +0.1% | -10.71% | Trim |
| 16 | GOOGL | Alphabet Inc-cl A | +0.1% | +9.19% | Add |
| 17 | INTC | Intel CORP | +0.1% | NEW | New buy |
| 18 | V | Visa Inc-class A Shares | +0.1% | +3.61% | Add |
| 19 | ABBV | Abbvie Inc | +0.1% | +50.00% | Add |
| 20 | MCK | Mckesson CORP | +0.1% | NEW | New buy |
| 21 | RSP | Invesco S&p 500 Equal Weight | 0% | +20.93% | Add |
| 22 | URI | United Rentals Inc | 0% | NEW | New buy |
| 23 | IYJ | Ishares U.s. Industrials ETF | 0% | NEW | New buy |
| 24 | GLD | Spdr Gold Shares | 0% | NEW | New buy |
| 25 | BNY | Bank Of New York Mellon CORP | 0% | NEW | New buy |
| 26 | NVDA | Nvidia CORP | 0% | +14.49% | Add |
| 27 | AXP | American Express Co | 0% | +50.00% | Add |
| 28 | CSCO | Cisco Systems Inc | 0% | — | Unchanged |
| 29 | HD | Home Depot Inc | 0% | +40.00% | Add |
| 30 | COST | Costco Wholesale CORP | 0% | NEW | New buy |
| 31 | BLK | Blackrock Inc | 0% | NEW | New buy |
| 32 | RTX | Rtx CORP | 0% | NEW | New buy |
| 33 | ANET | Arista Networks Inc | 0% | NEW | New buy |
| 34 | ASML | ASML Holding N.V. | 0% | -22.36% | Trim |
| 35 | VOO | Vanguard S&p 500 ETF | 0% | +9.73% | Add |
| 36 | EBAY | Ebay Inc | 0% | NEW | New buy |
| 37 | BAC | Bank Of America CORP | 0% | +28.04% | Add |
| 38 | VTWG | Vanguard Russell 2000 Growth | 0% | — | Unchanged |
| 39 | IJH | Ishares Core S&p Midcap ETF | — | +1.22% | Add |
| 40 | VTI | Vanguard Total Stock Mkt ETF | — | — | Unchanged |
| 41 | IBM | Intl Business Machines CORP | — | — | Unchanged |
| 42 | IWM | Ishares Russell 2000 ETF | — | — | Unchanged |
| 43 | IWF | Ishares Russell 1000 Growth | — | +300.00% | Add |
| 44 | CTBI | Community Trust Bancorp Inc | — | — | Unchanged |
| 45 | BA | Boeing Co/the | — | — | Unchanged |
| 46 | IWN | Ishares Russell 2000 Value E | — | — | Unchanged |
| 47 | AME | Ametek Inc | — | — | Unchanged |
| 48 | VNQ | Vanguard Real Estate ETF | — | — | Unchanged |
| 49 | PM | Philip Morris International | — | — | Unchanged |
| 50 | PAYX | Paychex Inc | — | — | Unchanged |
1–50 of 97
Filing History
FAQ
What is Professional Advisory Services Inc and what type of investor is it?
Professional Advisory Services Inc is an investment manager that files SEC Form 13F quarterly, disclosing its U.S. public equity holdings to regulators. As of the most recent reporting period (2026-06-30), the firm manages a tracked equity portfolio valued at approximately $835.7M, spread across 93 disclosed positions.
What are Professional Advisory Services Inc's largest equity positions?
Based on the latest 13F filing, Professional Advisory Services Inc's top holdings by market value are:
1. Alphabet Inc-cl C (GOOG) — $40.2M (4.8%)
2. Microsoft CORP (MSFT) — $34.6M (4.1%)
3. Amazon.com Inc (AMZN) — $34.6M (4.1%)
4. Thermo Fisher Scientific Inc (TMO) — $32.5M (3.9%)
5. Berkshire Hathaway Inc-cl B (BRK-B) — $32.2M (3.9%)
What changes did Professional Advisory Services Inc make in its most recent portfolio filing?
In the latest reported quarter, Professional Advisory Services Inc made 69 notable position adjustments: 17 new positions were initiated, 31 existing holdings were added to, 17 positions were partially reduced, and 4 were completely exited. The largest of these moves: New buy: Amphenol Corp-cl A (APH); New buy: AstraZeneca PLC (AZN); Sold out: Accenture plc (ACN); Sold out: Fortune Brands Innovations I (FBIN); Sold out: T-mobile US Inc (TMUS)
What sectors does Professional Advisory Services Inc focus on?
Professional Advisory Services Inc is concentrated in the following sectors based on its current disclosed equity portfolio:
• Information Technology: 27.5%
• Health Care: 17.2%
• Financials: 16.3%
• Consumer Discretionary: 11.6%
• Industrials: 10.5%
• Communication Services: 9.1%
Investment Profile
Professional Advisory Services Inc returned an annualized 14.0% over the trailing 36 months — underperforming the S&P 500 by 4.5 points — based on a reconstructed track record of its disclosed 13F positions, with a beta of 0.92 (roughly in line with the market) and a 42% quarterly batting average against the index.
Its portfolio is broadly diversified and long-term-holding.
It has added to its AMD position over the past two quarters (+$8.9M, now $29.7M), while trimming ADBE over the same stretch (-$3.4M, still holding $13.5M).
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Developer Access
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REST API
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