Stocks/Funds/CIK 1471085

Bronte Capital Management Pty Ltd.

long-term holder
Quarterly 13F filings · Latest period 2026-03-31 · CIK 1471085
Assets
$941M
-23.6% YoY
Holdings
51
Lifetime alpha vs market
-4.81% annual
Average hold time
2.3 yr
median 0.8 yr

Quarterly history

Cum return +25% vs S&P +52% · α -27% lifetimeAUM $941M · peak $1.3BFlow $-7M (-1%)2018-122020-032021-062022-092023-122025-032026-03
AUM ($B)fundS&P 500(gap = α)/ Flow in/out

Behavior signals (lifetime)

Dip response
-0.89%
trims when stocks drop
when a holding falls −10%+
Middle response
-4.36%
baseline attrition
Rally response
-1.63%
trims into rallies
when a holding rises +10%+

Top positions · 30

Ticker$ value% portYoYHold time
REGNRegeneron Pharmaceutical$134M14.2%+22.5%5.5 yr
GOOGLAlphabet Inc.$110M11.7%7.5 yr
IBKRInteractive Brokers Grou$86M9.1%+62.8%7.5 yr
BRK-BBerkshire Hathaway Inc.$74M7.9%7.3 yr
$72M7.7%2.8 yr
AMZNAmazon.com, Inc.$60M6.3%+9.5%3.3 yr
PMPhilip Morris Internatio$56M6.0%+7.9%4.8 yr
CTVACorteva, Inc.$42M4.5%+34.3%6.8 yr
COFCapital One Financial Co$34M3.6%+3.1%1.0 yr
FCNCAFirst Citizens BancShare$31M3.3%3.3 yr
$19M2.0%2.8 yr
DISThe Walt Disney Company$18M1.9%-1.3%0.3 yr
$17M1.8%0.5 yr
NKTRNektar Therapeutics$14M1.5%0.3 yr
HLFHerbalife Nutrition Ltd.$14M1.5%+70.6%7.5 yr

Portfolio composition (YoY)

Industry mix
Biotechnology17.0%+7.7pp$160M
Unknown14.8%+4.2pp$139M
Internet Content & Information12.5%+0.2pp$118M
Investment - Banking & Investment Services9.1%+0.8pp$86M
Insurance - Diversified7.9%-3.1pp$74M
Specialty Retail7.7%+0.2pp$72M
Tobacco6.4%-1.5pp$60M
Agricultural Inputs4.5%+1.1pp$42M
Financial - Credit Services3.6%-1.2pp$34M
Banks - Regional3.3%-0.5pp$31M
Country
US82.4%-6.2pp
Unknown14.8%+4.2pp
IL1.1%+0.9pp
CL1.1%+0.5pp
CA0.7%
Top 5: 50.6% · Top 10: 74.3% · Top 25: 94.7%

Winners

TickerPrev $PnLYoY %
REGN$115M+0.02B22.5%
HLF$26M+0.02B70.6%
IBKR$102M+0.01B62.8%
CTVA$42M+0.01B34.3%
PM$96M+0.01B7.9%

Losers

TickerPrev $PnLYoY %
PINS$31M-0.01B-40.8%

Top buys this quarter · 15

DIS The Walt Disney Companynew+$18M
NKTR Nektar Therapeuticsnew+$14M
AUR Aurora Innovation, Inc.new+$10M
GLBE Global-e Online Ltd.new+$7M
PCTY Paylocity Holding Corporationnew+$4M
BF-A Brown-Forman Corporationnew+$3M
COF Capital One Financial Corporat+$34M
AMZN Amazon.com, Inc.+$60M
TPB Turning Point Brands, Inc.+$2M
VRSK Verisk Analytics, Inc.new+$1M

Top sells this quarter · 15

IBKR Interactive Brokers Group, Inc$14M
PM Philip Morris International In$10M
SBH Sally Beauty Holdings, Inc.$7M
CTVA Corteva, Inc.$38M
SQM Sociedad Química y Minera de $3M
REGN Regeneron Pharmaceuticals, Inc$3M
HLF Herbalife Nutrition Ltd.$3M
BBWI Bath & Body Works, Inc.$2M
FICO Fair Isaac Corporationexit$2M
PINS Pinterest, Inc.$1M

Quarterly history (TTM returns)

PeriodAUM# PosReturn (1yr)SPY (1yr)Alpha (1yr)Flow
2026-03-31$941M51+22.93%+17.59%+5.34%-0.01B
2025-12-31$957M43+24.80%+17.72%+7.08%-0.25B
2025-09-30$1.11B29+6.38%+17.52%-11.14%-0.25B
2025-06-30$1.27B27-0.66%+14.94%-15.60%-0.04B
2025-03-31$1.23B26-1.98%+8.30%-10.28%-0.04B
2024-12-31$1.27B24+1.22%+24.89%-23.66%+0.13B
2024-09-30$1.23B25+19.43%+36.04%-16.60%-0.05B
2024-06-30$1.28B28+21.11%+24.49%-3.38%+0.01B
2024-03-31$1.20B29+10.11%+29.62%-19.52%+0.09B
2023-12-31$1.07B29+14.93%+26.18%-11.24%-0.01B
2023-09-30$993M28+9.56%+21.57%-12.01%-0.06B
2023-06-30$1.04B32+10.34%+19.42%-9.08%+0.21B
2023-03-31$862M30-5.84%-7.82%+1.98%+0.00B
2022-12-31$793M27+4.00%+7.56%-3.56%-0.04B
2022-09-30$803M28+2.06%-4.93%+6.99%-0.04B
2022-06-30$829M30-18.14%-16.11%-2.03%+0.25B