Stocks/Funds/CIK 1256071

PLATINUM INVESTMENT MANAGEMENT LTD

long-term holder
Quarterly 13F filings · Latest period 2026-03-31 · CIK 1256071
Assets
$397M
-77.0% YoY
Holdings
89
Lifetime alpha vs market
+0.25% annual
Average hold time
3.2 yr
median 2.3 yr

Quarterly history

Cum return +54% vs S&P +52% · α +1% lifetimeAUM $397M · peak $4.9BFlow $-24M (-6%)2016-062017-122019-062020-122022-062023-122025-062026-03
AUM ($B)fundS&P 500(gap = α)/ Flow in/out

Behavior signals (lifetime)

Dip response
-9.37%
trims when stocks drop
when a holding falls −10%+
Middle response
-13.52%
baseline attrition
Rally response
-18.01%
trims into rallies
when a holding rises +10%+

Top positions · 30

Ticker$ value% portYoYHold time
ZTOZTO Express (Cayman) Inc$50M12.7%+29.3%8.5 yr
TCOMTrip.com Group Limited$19M4.8%-21.7%6.5 yr
DDLDingdong (Cayman) Limite$17M4.2%-4.8%4.3 yr
LRCXLam Research Corporation$10M2.5%+196.1%1.5 yr
$10M2.5%1.8 yr
NOAHNoah Holdings Limited$10M2.5%+15.3%7.0 yr
AZNAstraZeneca PLC$9M2.3%+36.2%0.3 yr
AVGOBroadcom Inc.$8M2.0%+86.0%2.5 yr
PDDPDD Holdings Inc.$8M2.0%-13.7%3.5 yr
MUMicron Technology, Inc.$8M2.0%+289.6%10.5 yr
MRKMerck & Co., Inc.$8M1.9%+38.9%6.0 yr
GOOGAlphabet Inc.$7M1.8%+84.3%10.5 yr
JNJJohnson & Johnson$7M1.7%+51.5%8.3 yr
ABBVAbbVie Inc.$7M1.7%+7.3%1.3 yr
YUMYum! Brands, Inc.$6M1.6%+0.7%1.0 yr

Portfolio composition (YoY)

Industry mix
Biotechnology15.9%+12.9pp$63M
Integrated Freight & Logistics12.7%+0.9pp$50M
Drug Manufacturers - General8.9%-2.3pp$35M
Semiconductors8.7%-6.2pp$35M
Unknown6.6%+4.9pp$26M
Grocery Stores5.3%+4.0pp$21M
Travel Services5.3%+2.7pp$21M
Restaurants3.6%$14M
Internet Content & Information3.4%-7.1pp$13M
Asset Management2.5%+1.5pp$10M
Country
US54.1%-6.1pp
CN21.2%+5.3pp
Unknown6.6%+4.9pp
SG5.3%+2.6pp
GB4.6%+3.9pp
CA2.6%-2.1pp
CH2.1%-5.8pp
IE2.0%+1.2pp
Top 5: 26.6% · Top 10: 37.5% · Top 25: 59.6%

Winners

TickerPrev $PnLYoY %
MU$81M+0.24B289.6%
LRCX$83M+0.16B196.1%
CCJ$81M+0.13B164.4%
AVGO$88M+0.08B86.0%
ZTO$203M+0.06B29.3%

Losers

TickerPrev $PnLYoY %
TCOM$43M-0.01B-21.7%
PDD$13M-0.00B-13.7%
ZTS$7M-0.00B-27.2%
V$9M-0.00B-13.1%
DDL$22M-0.00B-4.8%

Top buys this quarter · 15

AZN AstraZeneca PLCnew+$9M
NFLX Netflix, Inc.+$5M
CAT Caterpillar Inc.+$2M
ELF e.l.f. Beauty, Inc.+$2M
SATS EchoStar Corporationnew+$1M
DFTX Definium Therapeutics, Inc.new+$1M
ADBE Adobe Inc.+$5M
CCCC C4 Therapeutics, Inc.new+$1M
GSAT Globalstar, Inc.new+$1M
MSI Motorola Solutions, Inc.+$1M

Top sells this quarter · 15

AMZN Amazon.com, Inc.exit$6M
UBER Uber Technologies, Inc.exit$5M
GOOG Alphabet Inc.$4M
WWW Wolverine World Wide, Inc.exit$3M
TCOM Trip.com Group Limited$3M
MOD Modine Manufacturing Company$3M
ROIV Roivant Sciences Ltd.$3M
LRCX Lam Research Corporation$10M
MSFT Microsoft Corporation$2M
ARWR Arrowhead Pharmaceuticals, Inc$2M

Quarterly history (TTM returns)

PeriodAUM# PosReturn (1yr)SPY (1yr)Alpha (1yr)Flow
2026-03-31$397M89+39.81%+17.59%+22.21%-0.02B
2025-12-31$433M124+37.41%+17.72%+19.69%-1.30B
2025-09-30$1.55B120+11.49%+17.52%-6.03%-0.19B
2025-06-30$1.50B115+3.09%+14.94%-11.85%-0.42B
2025-03-31$1.73B115-5.87%+8.30%-14.18%+0.10B
2024-12-31$1.70B115+3.26%+24.89%-21.63%-0.31B
2024-09-30$2.21B122+23.43%+36.04%-12.61%-0.43B
2024-06-30$2.47B134+16.17%+24.49%-8.32%-0.05B
2024-03-31$2.48B139+16.74%+29.62%-12.88%-0.10B
2023-12-31$2.46B142+21.35%+26.18%-4.83%-0.33B
2023-09-30$2.56B144+26.04%+21.57%+4.48%-0.33B
2023-06-30$2.88B143+15.51%+19.42%-3.91%-0.06B
2023-03-31$2.88B146+0.04%-7.82%+7.85%+0.02B
2022-12-31$2.62B132+13.03%+7.56%+5.47%-0.08B
2022-09-30$2.40B131-8.07%-4.93%-3.15%-0.04B
2022-06-30$2.64B130-11.64%-16.11%+4.47%-0.23B