Q3 2026 13F · SEC CIK 1020585

Duncker Streett & Co Inc

Wealth managerFiled 2026-10-27 for Q3 2026. Open the filing ↗ · All SEC filings ↗

Reported 13F value: $598.0M
Reported positions: 504
Top holdings a year, 3 yrs: +20.1%
Assets under management: $707.3M

Duncker Streett & Co Inc is a wealth manager that reported 504 positions worth $598.0M in its Q3 2026 13F, filed 2026-10-27. Its largest holdings were Apple Inc (AAPL, 4.8%), Broadcom Inc (AVGO, 4.0%), Microsoft Corp (MSFT, 3.9%). A portfolio copying its top holdings returned 20.1% a year over the last 3 years, against 20.4% for the S&P 500.

Duncker Streett & Co Inc holdings largest 50 of 504 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.

Duncker Streett & Co Inc 13F holdings
Stock	% of 13F value	Q2 2026	Shares	Share change	Reported value
AAPLApple Inc	4.8%	4.2%	85,682	-0.1%	$28.5M
AVGOBroadcom Inc	4.0%	4.4%	68,275	-0.2%	$24.0M
MSFTMicrosoft Corp	3.9%	2.7%	45,362	+4.9%	$23.3M
NVDANvidia Corporation	3.7%	3.2%	96,258	+0.9%	$22.0M
GOOGLAlphabet Inc	3.6%	3.8%	61,973	-0.1%	$21.3M
ABBVAbbvie Inc	2.9%	2.8%	65,204	-0.2%	$17.1M
JPMJpmorgan Chase & Co	2.7%	2.7%	48,973	-0.3%	$16.2M
XOMExxonmobil Holdings Corp	2.5%	—	91,182	—	$14.8M
MAMastercard Incorporated	2.5%	2.3%	26,908	-0.0%	$14.8M
XLKSelect Sector Spdr Tr	2.5%	2.4%	75,645	+0.6%	$14.8M
PANWPalo Alto Networks Inc	2.3%	2.4%	35,255	-13.4%	$14.0M
AMZNAmazon Com Inc	2.3%	2.2%	54,903	+0.6%	$13.7M
TMOThermo Fisher Scientific Inc	2.0%	1.5%	17,562	+0.0%	$11.9M
HEIHeico Corp New	1.8%	2.2%	35,886	+0.0%	$10.9M
CRWDCrowdstrike Hldgs Inc	1.7%	1.2%	38,872	+303.1%	$10.3M
MRKMerck & Co Inc	1.7%	1.5%	68,264	+1.4%	$9.9M
PWRQuanta Svcs Inc	1.2%	1.3%	10,961	-0.1%	$7.0M
TGTTarget Corp	1.1%	0.9%	43,826	+5.3%	$6.9M
LLYEli Lilly & Co	1.1%	1.1%	5,797	+3.9%	$6.7M
APHAmphenol Corp	1.1%	1.1%	76,544	+101.7%	$6.5M
GSGoldman Sachs Group Inc	1.1%	1.2%	7,029	+1.7%	$6.3M
DHRDanaher Corp Del	1.0%	1.4%	27,734	-35.6%	$6.1M
IWMIshares Tr	1.0%	1.1%	22,110	+0.6%	$6.1M
CVXChevron Corporation	0.9%	0.7%	27,167	+5.4%	$5.5M
COSTCostco Wholesale Corporation	0.9%	1.0%	6,019	+0.2%	$5.5M
GOOGAlphabet Inc	0.9%	1.0%	15,889	-1.0%	$5.4M
PGProcter & Gamble Co	0.9%	0.9%	36,996	+1.5%	$5.4M
KLACKla Corp	0.9%	1.3%	26,793	+1.5%	$5.2M
WMTWalmart Inc	0.9%	0.9%	48,945	-0.3%	$5.1M
SPYState Str Spdr S&p 500 ETF T	0.8%	0.8%	6,599	+2.9%	$5.0M
LOWLowes Cos Inc	0.8%	1.0%	26,673	+1.2%	$4.9M
ICEIntercontinental Exchange Inc	0.7%	0.6%	28,466	-1.1%	$4.3M
VVisa Inc	0.7%	0.7%	11,657	+0.1%	$4.2M
URIUnited Rentals Inc	0.7%	0.8%	4,081	+0.0%	$4.1M
AMEAmetek Inc	0.7%	0.7%	16,217	+0.0%	$4.0M
JNJJohnson & Johnson	0.7%	0.7%	15,162	+0.2%	$4.0M
ORLYOreilly Automotive Inc	0.6%	0.7%	45,368	-5.2%	$3.9M
LINLinde PLC	0.6%	0.7%	7,995	+1.1%	$3.8M
TJXTjx Cos Inc New	0.6%	0.7%	27,869	-0.2%	$3.7M
SLBSlb Limited	0.6%	0.6%	73,407	+2.3%	$3.6M
SPGIS&p Global Inc	0.6%	0.6%	8,911	-0.1%	$3.5M
ABTAbbott Laboratories	0.6%	0.5%	33,384	-0.4%	$3.3M
HDHome Depot Inc	0.5%	0.7%	11,380	-0.3%	$3.2M
IYWIshares Tr	0.5%	0.5%	12,074	-0.7%	$3.2M
QCOMQualcomm Inc	0.5%	0.5%	16,927	+0.0%	$3.1M
TDGTransdigm Group Inc	0.5%	0.7%	2,861	-4.3%	$3.1M
ITWIllinois Tool Wks Inc	0.5%	0.5%	11,860	+0.1%	$3.1M
IGSBIshares Tr	0.5%	—	53,946	—	$2.8M
SCHXSchwab Strategic Tr	0.5%	—	92,087	—	$2.8M
NEMNewmont Corp	0.5%	—	23,440	—	$2.7M

What Duncker Streett & Co 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

CRWD Crowdstrike Hldgs Inc+303.1% shares
APH Amphenol Corp+101.7% shares
CVX Chevron Corporation+5.4% shares
TGT Target Corp+5.3% shares

Reduced

DHR Danaher Corp Del-35.6% shares
PANW Palo Alto Networks Inc-13.4% shares
ORLY Oreilly Automotive Inc-5.2% 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: +16.7% /yr; S&P 500 +20.1%
3 years: +20.1% /yr; S&P 500 +20.4%
5 years: +11.1% /yr; S&P 500 +11.6%

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	$598.0M	504
Q2 2026	$590.8M	520
Q1 2026	$526.1M	533
Q4 2025	$562.7M	534
Q3 2025	$574.0M	534
Q2 2025	$548.0M	512
Q1 2025	$504.7M	503
Q4 2024	$538.6M	530
Q3 2024	$548.0M	488
Q2 2024	$520.2M	487
Q1 2024	$506.5M	477
Q4 2023	$473.7M	490

Questions about Duncker Streett & Co Inc's portfolio

What stocks does Duncker Streett & Co Inc own?

Duncker Streett & Co Inc's latest 13F, for Q3 2026 and filed Oct 27, 2026, lists 504 positions worth $598.0M. The largest are Apple Inc (AAPL) at 4.8%, Broadcom Inc (AVGO) at 4.0%, Microsoft Corp (MSFT) at 3.9%, Nvidia Corporation (NVDA) at 3.7% and Alphabet Inc (GOOGL) at 3.6%.

What did Duncker Streett & Co Inc buy last quarter?

In Q3 2026, Duncker Streett & Co Inc added Crowdstrike Hldgs Inc (CRWD) (+303.1% shares), Amphenol Corp (APH) (+101.7% shares) and Chevron Corporation (CVX) (+5.4% shares), compared with its Q2 2026 filing.

What did Duncker Streett & Co Inc sell last quarter?

In Q3 2026, Duncker Streett & Co Inc cut from its top 50 Exxon Mobil Corp (XOM), cut from its top 50 Bwx Technologies Inc (BWXT), cut from its top 50 Stryker Corporation (SYK), cut from its top 50 Caseys Gen Stores Inc (CASY), Danaher Corp Del (DHR) (-35.6% shares), Palo Alto Networks Inc (PANW) (-13.4% shares) and Oreilly Automotive Inc (ORLY) (-5.2% shares), compared with its Q2 2026 filing.

How has Duncker Streett & Co Inc's portfolio performed?

A portfolio copying Duncker Streett & Co Inc's 20 largest 13F holdings each quarter, from the day each filing was public, returned +20.1% a year over the last 3 years, against +20.4% for the S&P 500. Over 1 year: +16.7% against +20.1%. Over 5 years: +11.1% a year against +11.6%.

When is Duncker Streett & Co Inc's next 13F filing due?

13F filings are due 45 days after each quarter ends. Duncker Streett & Co 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 Duncker Streett & Co Inc manage?

Duncker Streett & Co Inc reported $707.3M of regulatory assets under management on its latest SEC Form ADV. Its 13F, which covers only US-listed stocks and options, totals $598.0M.