Stocks/Funds/CIK 1383782

Merrion Investment Management Co, LLC

long-term holder
Quarterly 13F filings · Latest period 2026-03-31 · CIK 1383782
Assets
$185M
+33.1% YoY
Holdings
108
Lifetime alpha vs market
+4.01% annual
Average hold time
3.8 yr
median 4.6 yr

Quarterly history

Cum return +130% vs S&P +87% · α +43% lifetimeAUM $185M · peak $185MFlow $-8M (-4%)2020-122021-122022-122023-122024-122025-122026-03
AUM ($B)fundS&P 500(gap = α)/ Flow in/out

Behavior signals (lifetime)

Dip response
+0.43%
adds when stocks drop
when a holding falls −10%+
Middle response
-1.84%
baseline attrition
Rally response
-2.71%
trims into rallies
when a holding rises +10%+

Top positions · 30

Ticker$ value% portYoYHold time
GOOGAlphabet Inc.$13M6.8%+84.3%5.5 yr
NVDANVIDIA Corporation$11M6.1%+60.9%4.0 yr
AAPLApple Inc.$10M5.2%+14.7%5.5 yr
CCJCameco Corporation$9M4.8%+164.4%5.5 yr
JEFJefferies Financial Grou$8M4.4%-20.7%5.5 yr
SATSEchoStar Corporation$8M4.2%+357.7%0.5 yr
NMMNavios Maritime Partners$6M3.2%+72.8%1.8 yr
VRTVertiv Holdings Co$6M3.0%+247.5%5.5 yr
GLWCorning Incorporated$6M3.0%+201.5%5.5 yr
GSThe Goldman Sachs Group,$5M2.7%+58.1%5.5 yr
BRK-BBerkshire Hathaway Inc.$5M2.7%5.5 yr
GEVGE Vernova Inc.$5M2.6%+186.8%2.0 yr
HALHalliburton Company$4M2.3%+57.9%3.8 yr
MGMMGM Resorts Internationa$4M2.2%+24.9%4.3 yr
CNQCanadian Natural Resourc$4M2.1%+66.0%2.3 yr

Portfolio composition (YoY)

Industry mix
Semiconductors9.1%+0.4pp$17M
Financial - Capital Markets7.3%-3.2pp$14M
Internet Content & Information7.2%+0.4pp$13M
Asset Management5.2%-0.5pp$10M
Consumer Electronics5.2%-2.4pp$10M
Uranium4.8%-1.5pp$9M
Communication Equipment4.2%$8M
Insurance - Diversified3.7%-2.6pp$7M
Renewable Utilities3.6%+1.4pp$7M
Oil & Gas Equipment & Services3.4%+1.2pp$6M
Country
US86.7%+0.4pp
CA9.1%-1.4pp
MC3.2%+1.5pp
CH1.0%+0.2pp
Top 5: 27.3% · Top 10: 43.5% · Top 25: 69.7%

Winners

TickerPrev $PnLYoY %
CCJ$9M+0.01B164.4%
GOOG$9M+0.01B84.3%
VRT$2M+0.01B247.5%
GLW$2M+0.00B201.5%
NVDA$7M+0.00B60.9%

Losers

TickerPrev $PnLYoY %
JEF$11M-0.00B-20.7%
VTS$2M-0.00B-18.8%
AIG$3M-0.00B-11.5%
MSFT$3M-0.00B-0.6%

Top buys this quarter · 15

SATS EchoStar Corporation+$2M
NMM Navios Maritime Partners L.P.+$1M
RIG Transocean Ltd.new+$1M
TDW Tidewater Inc.+$0M
GS The Goldman Sachs Group, Inc.+$0M
MCK McKesson Corporation+$0M
MS Morgan Stanley+$0M
PWR Quanta Services, Inc.+$0M
AVAV AeroVironment, Inc.+$0M
PANW Palo Alto Networks, Inc.+$0M

Top sells this quarter · 15

CCJ Cameco Corporation$7M
ORLA Orla Mining Ltd.exit$1M
LIN Linde plcexit$1M
LYB LyondellBasell Industries N.V.exit$0M
COST Costco Wholesale Corporation$0M
SAP SAP SEexit$0M
MSFT Microsoft Corporation$0M
BX Blackstone Inc.exit$0M
XYL Xylem Inc.$0M
APO Apollo Global Management, Inc.$0M

Quarterly history (TTM returns)

PeriodAUM# PosReturn (1yr)SPY (1yr)Alpha (1yr)Flow
2026-03-31$185M108+46.33%+17.59%+28.74%-0.01B
2025-12-31$185M112+26.58%+17.72%+8.87%+0.00B
2025-09-30$174M105+26.23%+17.52%+8.71%-0.00B
2025-06-30$154M102+14.85%+14.94%-0.10%-0.01B
2025-03-31$139M97+5.12%+8.30%-3.18%+0.01B
2024-12-31$143M100+26.57%+24.89%+1.69%-0.02B
2024-09-30$151M102+28.63%+36.04%-7.41%-0.00B
2024-06-30$145M97+27.99%+24.49%+3.50%-0.00B
2024-03-31$140M99+30.74%+29.62%+1.12%+0.00B
2023-12-31$127M91+26.52%+26.18%+0.35%+0.00B
2023-09-30$116M93+24.13%+21.57%+2.56%-0.01B
2023-06-30$118M98+18.34%+19.42%-1.08%+0.00B
2023-03-31$105M92-6.97%-7.82%+0.85%-0.01B
2022-12-31$107M88-15.50%-18.17%+2.67%+0.00B
2022-09-30$101M87-11.07%-15.51%+4.44%-0.00B
2022-06-30$103M90-9.35%-10.62%+1.27%-0.01B