Professional Advisory Services
Professional Advisory Services reported 90 stocks worth $837K in its 13F filing for Q3 2026, filed Oct 8, 2026. Its largest holdings are MSFT (4.9%), GOOG (4.8%) and TMO (4.1%). Compared with Q2 2026, the fund opened new positions in XLE, NFLX and VEEV, added to GOOG, AZN and APH, trimmed MSFT, TMO and AMZN and sold out of TFC, VBIL and XOM.
Holdings
| # | Stock | Value | Weight | Shares | Change | Shares, 8 qtrs | Held |
|---|---|---|---|---|---|---|---|
| 1 |  MSFT Microsoft Corp | $41K | 4.9% | 80K | −13K (−14%) | 8 of 8 | |
| 2 |  GOOG Alphabet Inc | $40K | 4.8% | 118K | +4,696 (+4%) | 8 of 8 | |
| 3 |  TMO Thermo Fisher Scientific Inc | $34K | 4.1% | 51K | −14K (−22%) | 8 of 8 | |
| 4 |  AMZN Amazon Com Inc | $34K | 4.0% | 136K | −9,034 (−6%) | 8 of 8 | |
| 5 |  BRK.B Berkshire Hathaway Inc Del | $31K | 3.8% | 63K | −1,164 (−2%) | 8 of 8 | |
| 6 |  AZN Astrazeneca PLC Ord | $30K | 3.5% | 182K | +20K (+13%) | 2 of 8 | |
| 7 |  AAPL Apple Inc | $29K | 3.5% | 88K | −12K (−12%) | 8 of 8 | |
| 8 |  IJH Ishares TR | $28K | 3.4% | 390K | No change | 8 of 8 | |
| 9 |  APH Amphenol Corp New | $28K | 3.3% | 327K | +146K (+81%) | 2 of 8 | |
| 10 |  SYK Stryker Corporation | $27K | 3.3% | 99K | +16K (+19%) | 8 of 8 |
Positions at Sep 30, 2026, as reported. Change is against the fund's Q2 2026 filing; weight is the share of the fund's reported stocks.
Sold out
held in Q2 2026, gone in Q3 2026| Stock | Value last quarter | Shares sold |
|---|---|---|
 TFC Truist Finl Corp | $19K | 383K |
 VBIL Vanguard 0-3 Month | $1K | 16K |
 XOM Exxon Mobil Corp | $1K | 7,658 |
 IYJ Ishares TR | $332 | 1,995 |
 EBAY Ebay Inc | $207 | 1,850 |
🔒 Free account: see all 6.
Reported value
last 8 quartersThe value of the US stocks the fund reported, at quarter end prices. It moves with the market as well as with buying and selling.
Filings for Q3 2026
straight from the SEC| Filed | Form | Quarter | |
|---|---|---|---|
| Oct 8, 2026 | 13F-HR | Q3 2026 | SEC filing ↗ |
Other superinvestors
All hedge fund holdings →Professional Advisory Services 13F FAQ
What does Professional Advisory Services own?
Professional Advisory Services reported 90 stocks worth $837K in its 13F filing for Q3 2026, filed Oct 8, 2026. Its largest holdings are MSFT (4.9%), GOOG (4.8%) and TMO (4.1%). The table above lists every position in the filing (the top 10 without an account).
What did Professional Advisory Services buy and sell in Q3 2026?
Compared with Q2 2026: 3 new positions, 25 added to, 23 trimmed and 6 sold out. New positions include XLE, NFLX and VEEV. It sold all of TFC, VBIL and XOM.
When will Professional Advisory Services file its next 13F?
Holdings as of Dec 31, 2026 are due by Feb 15, 2027. The filing appears on this page within minutes of reaching the SEC.
How much is Professional Advisory Services's portfolio worth?
The Q3 2026 filing reports $837K in US stocks. That leaves out cash, bonds, short positions and most foreign holdings, so the fund's total assets are usually larger.
For informational and educational purposes only. Not investment advice, and not a recommendation to buy or sell any security. Holdings come from the fund's SEC Form 13F filings as reported and show positions at the end of the quarter, up to 45 days before the filing. The fund may have changed its positions since. A 13F leaves out short positions, cash, bonds and most foreign holdings. See all hedge fund holdings.