Stocks/Funds/CIK 1892378

MBB PUBLIC MARKETS I LLC

long-term holderconcentrated
Quarterly 13F filings · Latest period 2026-03-31 · CIK 1892378
Assets
$835M
-3.8% YoY
Holdings
24
Lifetime alpha vs market
-2.80% annual
Average hold time
1.8 yr
median 1.9 yr

Quarterly history

Cum return +36% vs S&P +52% · α -16% lifetimeAUM $835M · peak $4.9BFlow $-103M (-11%)2021-122022-092023-062024-032024-122025-092026-03
AUM ($B)fundS&P 500(gap = α)/ Flow in/out

Behavior signals (lifetime)

Dip response
-8.74%
trims when stocks drop
when a holding falls −10%+
Middle response
-4.70%
baseline attrition
Rally response
-21.92%
trims into rallies
when a holding rises +10%+

Top positions · 24

Ticker$ value% portYoYHold time
PGRThe Progressive Corporat$177M21.1%-25.5%2.5 yr
AERAerCap Holdings N.V.$155M18.6%+35.6%1.8 yr
AMZNAmazon.com, Inc.$142M17.0%+9.5%3.5 yr
FERGFerguson plc$123M14.7%+47.8%1.0 yr
MDLNMedline Inc.$109M13.0%0.5 yr
VTEBVanguard Tax-Exempt Bond$36M4.3%0.5 yr
EQTEQT Corporation$30M3.6%+20.5%3.5 yr
GOOGLAlphabet Inc.$26M3.1%4.3 yr
TECKTeck Resources Limited$17M2.0%+43.3%4.3 yr
$10M1.2%2.5 yr
KYTXKyverna Therapeutics, In$5M0.6%+347.2%2.0 yr
AVGOBroadcom Inc.$3M0.4%+86.0%3.5 yr
GTXGarrett Motion Inc.$0M0.0%+121.3%2.0 yr
IBPInstalled Building Produ$0M0.0%+56.7%0.8 yr
ESIElement Solutions Inc$0M0.0%+52.8%0.3 yr

Portfolio composition (YoY)

Industry mix
Insurance - Property & Casualty21.1%+9.4pp$177M
Rental & Leasing Services18.6%+12.5pp$155M
Specialty Retail17.0%+12.5pp$142M
Industrial - Distribution14.7%+14.6pp$123M
Medical - Instruments & Supplies13.0%+12.8pp$109M
Asset Management4.3%-16.4pp$36M
Oil & Gas Exploration & Production3.6%-4.3pp$30M
Internet Content & Information3.1%-1.7pp$26M
Industrial Materials2.0%-1.1pp$17M
Unknown1.2%-2.8pp$10M
Country
US63.4%-18.2pp
IE18.6%+12.1pp
GB14.7%+14.6pp
CA2.0%-4.1pp
Unknown1.2%-2.8pp
CH0.0%-0.1pp
Top 5: 84.5% · Top 10: 98.7% · Top 25: 100.0%

Winners

TickerPrev $PnLYoY %
AER$53M+0.02B35.6%
AVGO$17M+0.01B86.0%
TECK$27M+0.01B43.3%
EQT$36M+0.01B20.5%
KYTX$1M+0.00B347.2%

Losers

TickerPrev $PnLYoY %
PGR$99M-0.02B-25.5%
HLMN$0M-0.00B-5.3%

Top buys this quarter · 7

RUSHA Rush Enterprises, Inc.new+$0M
VTEB Vanguard Tax-Exempt Bond ETF+$0M
FERG Ferguson plc+$14M
AMZN Amazon.com, Inc.+$142M
PGR The Progressive Corporation+$177M
ESI Element Solutions Incnew+$0M
UNF UniFirst Corporationnew+$0M

Top sells this quarter · 11

GOOGL Alphabet Inc.$0M
$9M
VEA Vanguard FTSE Developed Marketexit$0M
AMGN Amgen Inc.exit$21M
AVGO Broadcom Inc.$17M
TECK Teck Resources Limited$12M
EQT EQT Corporation$9M
FCX Freeport-McMoRan Inc.exit$6M
WDC Western Digital Corporationexit$0M
STX Seagate Technology Holdings plexit$0M

Quarterly history (TTM returns)

PeriodAUM# PosReturn (1yr)SPY (1yr)Alpha (1yr)Flow
2026-03-31$835M24+21.71%+17.59%+4.12%-0.10B
2025-12-31$957M27+22.76%+17.72%+5.04%+0.12B
2025-09-30$751M36+4.43%+17.52%-13.09%-0.13B
2025-06-30$869M497+8.23%+14.94%-6.71%-0.09B
2025-03-31$868M523-1.20%+8.30%-9.50%+0.03B
2024-12-31$844M58+6.96%+24.89%-17.93%-0.27B
2024-09-30$1.18B534+21.70%+36.04%-14.33%-3.92B
2024-06-30$4.84B671+19.99%+24.49%-4.50%+3.27B
2024-03-31$1.56B268+26.49%+29.62%-3.13%-0.17B
2023-12-31$1.62B91+21.49%+26.18%-4.69%+0.02B
2023-09-30$1.49B102+37.52%+21.57%+15.95%-0.33B
2023-06-30$1.76B102+26.32%+19.42%+6.90%-0.08B
2023-03-31$1.73B83-10.68%-7.82%-2.87%-1.95B
2022-12-31$3.57B78+21.57%+7.56%+14.01%-0.89B
2022-09-30$3.67B79-4.73%-4.93%+0.20%-0.27B
2022-06-30$4.14B79-24.98%-16.11%-8.87%+0.54B