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Duncker Streett & Co. Inc.

CIK:0001020585
Investment Adviser
$600M AUM
512 holdings
St. Louis, MO, USA
Founded:1990
7 employees
Latest filing:Jun 30, 2025

Duncker Streett & Co. is a boutique registered investment advisory firm founded in 1990, headquartered in St. Louis, Missouri. It provides investment management and discretionary portfolio management services to individuals, families, trusts, pension and profit-sharing plans, endowments, charitable trusts, corporations, and holding companies. The firm is led by a team of CFA and CFP professionals who offer personalized client communication and hand-picked investments, serving a diverse clientele including institutions and high net worth individuals. Duncker Streett & Co. is committed to providing fiduciary advice and managing client portfolios with tailored solutions to individual financial goals.

Investment Strategy

Duncker Streett & Co. employs a disciplined, cash flow-based investment approach focused on long-term wealth creation. Portfolios typically hold 30-50 equities diversified across market sectors, selected for demonstrated ability to grow shareholder wealth through increasing cash flow rates, undervaluation relative to price targets, and strong capital allocation by management. The firm prioritizes 'business picking' rather than trading stocks, relying on thorough research into the drivers of cash flow (sales growth, operating margins, balance sheet productivity) and management’s capital allocation discipline. Portfolios are constructed on a case-by-case basis to reflect each client’s goals, risk tolerance, and investment horizon. Asset allocations may include equities, REITs, master limited partnerships, ETFs, mutual funds, fixed income, and certificates of deposit, with a recurring emphasis on long-term buy and hold.

Top Buys
A
AVGOBROADCOM INC
+$9.0M
N
NVDANVIDIA CORPORATION
+$7.3M
M
METAMETA PLATFORMS INC
+$5.9M
M
MSFTMICROSOFT CORP
+$5.7M
A
AXONAXON ENTERPRISE INC
+$4.6M
Top Sells
U
UNHUNITEDHEALTH GROUP INC
-$3.3M
T
TMOTHERMO FISHER SCIENTIFIC INC
-$2.9M
B
BXBLACKSTONE INC
-$2.3M
H
HDHOME DEPOT INC
-$2.3M
D
DFSDISCOVER FINL SVCS
-$2.1M

Top Holdings

M
MSFTMICROSOFT CORP
+4.3%$23.6M
A
AVGOBROADCOM INC
+4.3%$23.5M
N
NVDANVIDIA CORPORATION
+3.6%$19.8M
M
MAMASTERCARD INCORPORATED
+3.3%$18.0M
A
AAPLAPPLE INC
+3.0%$16.7M

Equity Positions (510)

TickerSecurityWeightMarket ValueSharesAvg CostPriceChange (QoQ)
M
MSFT
MICROSOFT CORP4.30%$23.6M47,353$100.24$497.41+$5.7M
A
AVGO
BROADCOM INC4.28%$23.5M85,075$29.63$275.65+$9.0M
N
NVDA
NVIDIA CORPORATION3.61%$19.8M125,172$46.42$157.99+$7.3M
M
MA
MASTERCARD INCORPORATED3.29%$18.0M32,054$78.52$561.94+$208.6K
A
AAPL
APPLE INC3.04%$16.7M81,217$32.53$205.17-$953.8K

Industry Allocation

SEMICONDUCTORS & RELATED DEVICES
+8.1%
SERVICES-PREPACKAGED SOFTWARE
+7.1%
SERVICES-BUSINESS SERVICES, NEC
+6.3%
PHARMACEUTICAL PREPARATIONS
+5.0%
SERVICES-COMPUTER PROGRAMMING, DATA PROCESSING, ETC.
+4.8%