Stocks/Funds/CIK 1588225

Heronetta Management, L.P.

long-term holderconcentrated
Quarterly 13F filings · Latest period 2026-03-31 · CIK 1588225
Assets
$110M
-40.1% YoY
Holdings
16
Lifetime alpha vs market
+5.31% annual
Average hold time
7.4 yr
median 7.5 yr

Quarterly history

Cum return +87% vs S&P +52% · α +35% lifetimeAUM $110M · peak $200MFlow $-92M (-53%)2016-062017-122019-062020-122022-062023-122025-062026-03
AUM ($B)fundS&P 500(gap = α)/ Flow in/out

Behavior signals (lifetime)

Dip response
-2.96%
trims when stocks drop
when a holding falls −10%+
Middle response
-0.13%
baseline attrition
Rally response
-0.73%
trims into rallies
when a holding rises +10%+

Top positions · 16

Ticker$ value% portYoYHold time
EPDEnterprise Products Part$19M17.1%+18.7%10.5 yr
MPLXMPLX Lp$18M16.9%+15.4%10.5 yr
WMBThe Williams Companies, $18M16.7%+25.8%8.3 yr
ETEnergy Transfer LP$15M14.1%+12.1%10.5 yr
OKEONEOK, Inc.$13M11.6%-3.8%8.8 yr
WESWestern Midstream Partne$8M7.8%+10.3%7.3 yr
PAGPPlains GP Holdings, L.P.$4M4.0%+23.4%4.3 yr
HESMHess Midstream LP$4M3.3%-0.4%6.5 yr
KMIKinder Morgan, Inc.$3M2.7%+22.6%7.3 yr
TRGPTarga Resources Corp.$3M2.4%+28.0%7.8 yr
ENBEnbridge Inc.$1M0.8%+29.3%10.5 yr
PBAPembina Pipeline Corpora$1M0.7%+17.8%10.5 yr
TRPTC Energy Corporation$1M0.7%+37.4%5.8 yr
LNGCheniere Energy, Inc.$1M0.6%+23.8%3.5 yr
AMAntero Midstream Corpora$0M0.4%+33.3%3.5 yr

Portfolio composition (YoY)

Industry mix
Oil & Gas Midstream100.0%+22.4pp$110M
Country
US97.8%+37.7pp
CA2.2%-31.8pp
Top 5: 76.4% · Top 10: 96.5% · Top 25: 100.0%

Winners

TickerPrev $PnLYoY %
WMB$17M+0.00B25.8%
EPD$19M+0.00B18.7%
MPLX$19M+0.00B15.4%
ENB$12M+0.00B29.3%
TRP$8M+0.00B37.4%

Losers

TickerPrev $PnLYoY %
OKE$16M-0.00B-3.8%
HESM$4M-0.00B-0.4%

Top buys this quarter · 3

WMB The Williams Companies, Inc.+$0M
TRGP Targa Resources Corp.+$0M
MPLX MPLX Lp+$0M

Top sells this quarter · 15

ENB Enbridge Inc.$10M
CNQ Canadian Natural Resources Limexit$9M
SU Suncor Energy Inc.exit$9M
PBA Pembina Pipeline Corporation$8M
TRP TC Energy Corporation$8M
CNI Canadian National Railway Compexit$5M
FTS Fortis Inc.exit$5M
EMA.TO Emera Incorporatedexit$5M
TAC TransAlta Corporationexit$2M
CVE Cenovus Energy Inc.exit$0M

Quarterly history (TTM returns)

PeriodAUM# PosReturn (1yr)SPY (1yr)Alpha (1yr)Flow
2026-03-31$110M16+18.16%+17.59%+0.57%-0.09B
2025-12-31$173M25+7.83%+17.72%-9.89%-0.01B
2025-09-30$183M25+14.40%+17.52%-3.12%+0.00B
2025-06-30$180M25+19.49%+14.94%+4.55%+0.00B
2025-03-31$183M24+26.44%+8.30%+18.13%-0.00B
2024-12-31$175M24+33.41%+24.89%+8.52%-0.00B
2024-09-30$164M23+30.94%+36.04%-5.10%-0.00B
2024-06-30$156M23+26.81%+24.49%+2.32%-0.00B
2024-03-31$155M23+26.19%+29.62%-3.44%-0.00B
2023-12-31$141M23+15.21%+26.18%-10.97%-0.00B
2023-09-30$136M23+19.32%+21.57%-2.24%-0.00B
2023-06-30$137M24+11.18%+19.42%-8.24%-0.00B
2023-03-31$136M24-0.72%-7.82%+7.10%-0.03B
2022-12-31$159M27+9.84%+7.56%+2.28%+0.01B
2022-09-30$139M24-4.25%-4.93%+0.68%+0.00B
2022-06-30$143M24-8.00%-16.11%+8.11%+0.00B