Stocks/Funds/CIK 1512171

Route One Investment Company, L.P.

long-term holderconcentrated
Quarterly 13F filings · Latest period 2026-03-31 · CIK 1512171
Assets
$2.28B
-2.7% YoY
Holdings
18
Lifetime alpha vs market
-1.05% annual
Average hold time
4.2 yr
median 2.6 yr

Quarterly history

Cum return +46% vs S&P +52% · α -6% lifetimeAUM $2.3B · peak $4.1BFlow $60M (+3%)2016-062017-122019-062020-122022-062023-122025-062026-03
AUM ($B)fundS&P 500(gap = α)/ Flow in/out

Behavior signals (lifetime)

Dip response
+2.56%
adds when stocks drop
when a holding falls −10%+
Middle response
-5.06%
baseline attrition
Rally response
-7.71%
trims into rallies
when a holding rises +10%+

Top positions · 18

Ticker$ value% portYoYHold time
POSTPost Holdings, Inc.$292M12.8%-15.0%10.5 yr
GWREGuidewire Software, Inc.$277M12.1%-20.2%6.3 yr
AMZNAmazon.com, Inc.$215M9.4%+9.5%3.8 yr
NYTThe New York Times Compa$206M9.0%+70.5%6.0 yr
GOOGAlphabet Inc.$198M8.7%+84.3%10.5 yr
SCHWThe Charles Schwab Corpo$158M6.9%+21.5%10.5 yr
UNHUnitedHealth Group Incor$144M6.3%-46.9%7.0 yr
TMOThermo Fisher Scientific$127M5.6%-0.9%2.8 yr
HLFHerbalife Nutrition Ltd.$121M5.3%+70.6%10.5 yr
KRCKilroy Realty Corporatio$114M5.0%-10.1%1.5 yr
VISTVista Energy, S.A.B. de $92M4.0%+62.1%0.5 yr
MELIMercadoLibre, Inc.$77M3.4%-11.4%0.3 yr
ESSEssex Property Trust, In$72M3.2%-18.8%0.5 yr
$54M2.4%1.0 yr
PCORProcore Technologies, In$52M2.3%-13.7%2.5 yr

Portfolio composition (YoY)

Industry mix
Packaged Foods18.1%-3.7pp$413M
Software - Application14.4%-8.4pp$329M
Specialty Retail12.8%+2.5pp$292M
Publishing9.0%+1.2pp$206M
Internet Content & Information8.7%+1.4pp$198M
Financial - Capital Markets6.9%-4.3pp$158M
Medical - Healthcare Plans6.3%-3.4pp$144M
Medical - Diagnostics & Research5.6%+0.6pp$127M
REIT - Office5.0%$114M
Oil & Gas Exploration & Production4.0%$92M
Country
US87.9%-8.0pp
MX4.0%
UY3.4%
Unknown2.4%
AR2.3%
Top 5: 52.0% · Top 10: 81.1% · Top 25: 100.0%

Winners

TickerPrev $PnLYoY %
NYT$183M+0.13B70.5%
GOOG$116M+0.10B84.3%
SCHW$264M+0.06B21.5%
HLF$41M+0.03B70.6%
AMZN$243M+0.02B9.5%

Losers

TickerPrev $PnLYoY %
UNH$228M-0.10B-46.9%
GWRE$384M-0.08B-20.2%
POST$471M-0.07B-15.0%
PCOR$61M-0.01B-13.7%
TMO$116M-0.00B-0.9%

Top buys this quarter · 10

+$0M
MELI MercadoLibre, Inc.new+$77M
KRC Kilroy Realty Corporation+$31M
GGAL Grupo Financiero Galicia S.A.new+$27M
GWRE Guidewire Software, Inc.+$277M
BMA Banco Macro S.A.new+$26M
VIST Vista Energy, S.A.B. de C.V.+$15M
UNH UnitedHealth Group Incorporate+$144M
VEEV Veeva Systems Inc.+$32M
HLF Herbalife Nutrition Ltd.+$1M

Top sells this quarter · 6

ESS Essex Property Trust, Inc.$57M
NYT The New York Times Company$54M
AMZN Amazon.com, Inc.$22M
POST Post Holdings, Inc.$18M
SCHW The Charles Schwab Corporation$15M
TMO Thermo Fisher Scientific Inc.$2M

Quarterly history (TTM returns)

PeriodAUM# PosReturn (1yr)SPY (1yr)Alpha (1yr)Flow
2026-03-31$2.28B18+2.93%+17.59%-14.67%+0.06B
2025-12-31$2.40B15+9.61%+17.72%-8.11%-0.12B
2025-09-30$2.45B16+7.36%+17.52%-10.15%+0.13B
2025-06-30$2.23B14+10.77%+14.94%-4.17%-0.20B
2025-03-31$2.35B13+11.46%+8.30%+3.15%-0.14B
2024-12-31$2.51B13+20.01%+24.89%-4.87%-0.29B
2024-09-30$2.78B15+37.20%+36.04%+1.16%-0.05B
2024-06-30$2.63B15+34.25%+24.49%+9.76%-0.00B
2024-03-31$2.53B16+33.95%+29.62%+4.33%-0.37B
2023-12-31$2.72B15+36.21%+26.18%+10.03%-0.26B
2023-09-30$2.59B14+23.28%+21.57%+1.72%-0.05B
2023-06-30$2.50B12+13.01%+19.42%-6.42%-0.12B
2023-03-31$2.53B14-5.07%-7.82%+2.75%+0.14B
2022-12-31$2.21B13+4.25%+7.56%-3.31%-0.55B
2022-09-30$2.64B15-3.61%-4.93%+1.32%-0.02B
2022-06-30$2.76B15-12.70%-16.11%+3.41%-0.04B