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Duff & Phelps Investment Management Co.

CIK:0000765443
Asset Manager
$11B AUM
154 holdings
Chicago, IL, United States
Founded:1932
85 employees
Latest filing:Jun 30, 2025

Duff & Phelps Investment Management Co. is an institutional asset manager headquartered in Chicago, IL. Founded over 90 years ago, the firm specializes in active management of global listed infrastructure, utilities, real estate, and related sectors. Its boutique structure supports specialized investment strategies tailored for both institutional and individual investors, including public funds, pensions, endowments, and retail clients. Employee count is not publicly disclosed but is estimated to be mid-sized given the boutique positioning and strategy coverage.

Investment Strategy

Duff & Phelps Investment Management Co. employs active management across a limited number of specialized investment strategies, focusing on global listed infrastructure, utilities, and real assets. Their approach emphasizes fundamental research, sector specialization, and risk-aware portfolio construction to deliver long-term value. The firm offers strategies through mutual funds, closed-end funds, and managed accounts, serving institutional clients as well as individuals, and seeks defensive traits, stable earnings, and compelling diversification qualities to achieve competitive returns with a lower risk profile relative to global equities.

Top Buys
D
DLRDIGITAL RLTY TR INC
+$42.0M
I
IRMIRON MOUNTAIN INC
+$36.5M
S
SMASMARTSTOP SELF STORA
+$34.7M
C
CSXCSX CORP
+$26.0M
K
KMIKINDER MORGAN INC
+$23.7M
Top Sells
O
OKEONEOK INC
-$52.5M
U
UNPUNION PAC CORP
-$22.5M
W
WECWEC ENERGY GROUP INC
-$22.0M
T
TRGPTARGA RESOURCES IN
-$20.3M
V
VTRVENTAS INC
-$19.4M

Research Analysts

Top Holdings

W
WELLWELLTOWER OP INC
+4.5%$385.8M
E
EQIXEQUINIX INC
+3.8%$324.4M
P
PLDPROLOGIS INC
+3.7%$312.1M
D
DLRDIGITAL RLTY TR INC
+2.8%$239.1M
A
AMTAMERICAN TOWER CORP
+2.3%$194.0M

Equity Positions (152)

TickerSecurityWeightMarket ValueSharesAvg CostPriceChange (QoQ)
W
WELL
WELLTOWER OP INC4.53%$385.8M2,509,637$105.82$153.73+$6.3M
E
EQIX
EQUINIX INC3.81%$324.4M407,760$693.54$795.47+$1.9M
P
PLD
PROLOGIS INC3.67%$312.1M2,969,334$86.50$105.12-$19.3M
D
DLR
DIGITAL RLTY TR INC2.81%$239.1M1,371,704$124.03$174.33+$42.0M
A
AMT
AMERICAN TOWER CORP2.28%$194.0M877,866$187.87$221.02+$161.1K

Industry Allocation

REAL ESTATE INVESTMENT TRUSTS
+43.9%
ELECTRIC SERVICES
+14.2%
ELECTRIC & OTHER SERVICES COMBINED
+13.7%
NATURAL GAS TRANSMISSION
+6.8%
NATURAL GAS DISTRIBUTION
+4.5%