Q3 2026 13F · SEC CIK 894205

Professional Advisory Services Inc

Wealth managerFiled 2026-10-08 for Q3 2026. Open the filing ↗ · All SEC filings ↗

Reported 13F value: $836.9M
Reported positions: 90
Top holdings a year, 3 yrs: +14.3%
Assets under management: $1.3B

Professional Advisory Services Inc is a wealth manager that reported 90 positions worth $836.9M in its Q3 2026 13F, filed 2026-10-08. Its largest holdings were Microsoft Corp (MSFT, 4.9%), Alphabet Inc (GOOG, 4.8%), Thermo Fisher Scientific Inc (TMO, 4.1%). A portfolio copying its top holdings returned 14.3% a year over the last 3 years, against 22.3% for the S&P 500.

Professional Advisory Services Inc holdings largest 50 of 90 positions.

Weights are shares of the filer's total reported 13F value, compared with Q2 2026. Share changes may reflect splits; weight changes also reflect price moves. A 13F shows long US-listed positions only, up to 135 days after the fact.

Professional Advisory Services Inc 13F holdings
Stock	% of 13F value	Q2 2026	Shares	Share change	Reported value
MSFTMicrosoft Corp	4.9%	4.1%	79,907	-13.7%	$41.0M
GOOGAlphabet Inc	4.8%	4.8%	118,368	+4.1%	$40.3M
TMOThermo Fisher Scientific Inc	4.1%	3.9%	50,612	-21.9%	$34.2M
AMZNAmazon Com Inc	4.0%	4.1%	135,930	-6.2%	$33.9M
BRK-BBerkshire Hathaway Inc Del	3.8%	3.9%	63,230	-1.8%	$31.5M
AZNAstrazeneca PLC	3.5%	3.6%	181,963	+12.6%	$29.7M
AAPLApple Inc	3.5%	3.4%	87,620	-11.7%	$29.2M
IJHIshares Tr	3.3%	3.6%	389,558	+0.1%	$28.0M
APHAmphenol Corp	3.3%	3.8%	327,395	+80.9%	$27.6M
SYKStryker Corporation	3.3%	3.1%	98,993	+18.7%	$27.3M
AJGGallagher Arthur J & Co	3.2%	3.0%	118,284	+9.1%	$27.0M
ELVElevance Health Inc Formerly	3.2%	3.2%	68,530	-0.2%	$26.6M
BKNGBooking Holdings Inc	3.1%	3.1%	161,271	+12.5%	$26.3M
JJacobs Solutions Inc	3.1%	3.2%	194,156	-9.1%	$26.3M
AMDAdvanced Micro Devices Inc	3.1%	3.5%	42,916	-16.0%	$26.3M
ADIAnalog Devices Inc	3.1%	2.6%	65,864	+19.1%	$26.1M
VVisa Inc	2.8%	2.9%	66,272	-6.5%	$23.8M
TAt&t Inc	2.8%	2.5%	954,616	-4.6%	$23.3M
PEPPepsico Inc	2.8%	3.2%	182,030	-6.5%	$23.1M
XLESelect Sector Spdr Tr	2.8%	—	374,358	—	$23.0M
SYYSysco Corp	2.7%	3.0%	289,876	-3.1%	$22.6M
SPGIS&p Global Inc	2.7%	2.7%	57,215	+2.7%	$22.6M
USBUS Bancorp	2.7%	2.9%	385,835	-4.5%	$22.3M
GDGeneral Dynamics Corp	2.6%	2.8%	66,048	-1.5%	$21.9M
TJXTjx Cos Inc New	2.6%	2.6%	165,436	+16.0%	$21.9M
EMXCIshares Inc	2.4%	3.4%	205,255	-25.5%	$20.3M
CARRCarrier Global Corporation	2.4%	2.6%	370,360	+22.7%	$20.3M
NFLXNetflix Inc.	2.1%	—	251,989	—	$17.5M
ADBEAdobe Inc	1.8%	1.6%	61,696	-6.4%	$14.8M
LRCXLam Research Corp	1.1%	1.6%	29,275	-5.9%	$9.6M
ASMLAsml Hldg NV	1.0%	1.0%	4,404	+1.2%	$8.0M
AMATApplied Matls Inc	0.8%	1.1%	13,786	+4.2%	$7.0M
VCSHVanguard Scottsdale Fds	0.8%	0.7%	81,230	+4.2%	$6.3M
JNJJohnson & Johnson	0.6%	0.6%	18,222	+0.0%	$4.8M
VTIVanguard Index Fds	0.5%	0.5%	11,260	+0.0%	$4.2M
GOOGLAlphabet Inc	0.5%	0.5%	11,010	-0.4%	$3.8M
NVDANvidia Corporation	0.3%	0.2%	10,032	+0.8%	$2.3M
VOOVanguard Index Fds	0.3%	0.3%	3,255	+1.3%	$2.3M
SHVIshares Tr	0.2%	0.2%	18,377	+44.9%	$2.0M
RSPInvesco Exchange Traded Fd T	0.2%	0.2%	9,581	+3.5%	$2.0M
PGProcter & Gamble Co	0.2%	0.2%	11,543	+0.0%	$1.7M
SPYState Str Spdr S&p 500 ETF T	0.2%	0.2%	1,718	-0.7%	$1.3M
ABBVAbbvie Inc	0.1%	0.1%	4,502	+0.0%	$1.2M
MRKMerck & Co Inc	0.1%	0.1%	7,998	+0.3%	$1.2M
ROKRockwell Automation Inc	0.1%	0.1%	2,350	+0.0%	$1.0M
IVVIshares Tr	0.1%	0.1%	1,090	-4.8%	$835K
CVXChevron Corporation	0.1%	—	4,000	—	$817K
CSCOCisco Sys Inc	0.1%	0.1%	7,568	+0.5%	$815K
ORCLOracle Corp	0.1%	0.1%	5,800	-0.1%	$796K
BRK-ABerkshire Hathaway Inc Del	0.1%	—	100	—	$747K

What Professional Advisory Services Inc bought and sold in Q3 2026, against Q2 2026.

New positions

Q2 2026's filing was too long to tell new positions apart.

Added to

APH Amphenol Corp+80.9% shares
SHV Ishares Tr+44.9% shares
CARR Carrier Global Corporation+22.7% shares
ADI Analog Devices Inc+19.1% shares
SYK Stryker Corporation+18.7% shares
TJX Tjx Cos Inc New+16.0% shares
AZN Astrazeneca PLC+12.6% shares
BKNG Booking Holdings Inc+12.5% shares

Reduced

EMXC Ishares Inc-25.5% shares
TMO Thermo Fisher Scientific Inc-21.9% shares
AMD Advanced Micro Devices Inc-16.0% shares
MSFT Microsoft Corp-13.7% shares
AAPL Apple Inc-11.7% shares
J Jacobs Solutions Inc-9.1% shares
PEP Pepsico Inc-6.5% shares
V Visa Inc-6.5% shares

Left the top 50

Share counts compared with the Q2 2026 13F; a split also changes share counts. The latest filing lists more than 50 positions, so a position that left the top 50 may still be held.

How the holdings did against the S&P 500.

1 year: +16.0% /yr; S&P 500 +11.7%
3 years: +14.3% /yr; S&P 500 +22.3%
5 years: +4.9% /yr; S&P 500 +10.6%

A portfolio of the filer's 20 largest 13F positions, weighted by value, bought the trading day after each 13F was filed and held until the next one was: what copying this filer could have earned. 13Fs show long US-listed positions only, so this is an estimate of the stock picks, not the fund's reported returns.

Reported 13F value by quarter.

13F value by quarter
Quarter	13F value	Positions
Q3 2026	$836.9M	90
Q2 2026	$835.7M	93
Q1 2026	$724.4M	80
Q4 2025	$771.6M	80
Q3 2025	$768.3M	81
Q2 2025	$737.1M	83
Q1 2025	$714.0M	82
Q4 2024	$724.5M	77
Q3 2024	$761.7M	80
Q2 2024	$732.3M	77
Q1 2024	$736.9M	76
Q4 2023	$699.8M	72

Questions about Professional Advisory Services Inc's portfolio

What stocks does Professional Advisory Services Inc own?

Professional Advisory Services Inc's latest 13F, for Q3 2026 and filed Oct 8, 2026, lists 90 positions worth $836.9M. The largest are Microsoft Corp (MSFT) at 4.9%, Alphabet Inc (GOOG) at 4.8%, Thermo Fisher Scientific Inc (TMO) at 4.1%, Amazon Com Inc (AMZN) at 4.0% and Berkshire Hathaway Inc Del (BRK-B) at 3.8%.

What did Professional Advisory Services Inc buy last quarter?

In Q3 2026, Professional Advisory Services Inc added Amphenol Corp (APH) (+80.9% shares), Ishares Tr (SHV) (+44.9% shares) and Carrier Global Corporation (CARR) (+22.7% shares), compared with its Q2 2026 filing.

What did Professional Advisory Services Inc sell last quarter?

In Q3 2026, Professional Advisory Services Inc cut from its top 50 Truist Finl Corp (TFC), cut from its top 50 Vanguard Instl Index Fd (VBIL), cut from its top 50 Exxon Mobil Corp (XOM), cut from its top 50 Home Depot Inc (HD), Ishares Inc (EMXC) (-25.5% shares), Thermo Fisher Scientific Inc (TMO) (-21.9% shares) and Advanced Micro Devices Inc (AMD) (-16.0% shares), compared with its Q2 2026 filing.

How has Professional Advisory Services Inc's portfolio performed?

A portfolio copying Professional Advisory Services Inc's 20 largest 13F holdings each quarter, from the day each filing was public, returned +14.3% a year over the last 3 years, against +22.3% for the S&P 500. Over 1 year: +16.0% against +11.7%. Over 5 years: +4.9% a year against +10.6%.

When is Professional Advisory Services Inc's next 13F filing due?

13F filings are due 45 days after each quarter ends. Professional Advisory Services Inc's filing for the quarter ending Dec 31, 2026 is due by Feb 14, 2027; this page updates the day after it is published.

How much money does Professional Advisory Services Inc manage?

Professional Advisory Services Inc reported $1.3B of regulatory assets under management on its latest SEC Form ADV. Its 13F, which covers only US-listed stocks and options, totals $836.9M.