Stocks/Funds/CIK 1590729

Millstreet Capital Management LLC

long-term holderconcentrated
Quarterly 13F filings · Latest period 2026-03-31 · CIK 1590729
Assets
$418M
+50.3% YoY
Holdings
2
Lifetime alpha vs market
+17.27% annual
Average hold time
1.5 yr
median 1.5 yr

Quarterly history

Cum return +101% vs S&P +41% · α +61% lifetimeAUM $418M · peak $439MFlow $-40M (-9%)2023-122024-062024-122025-062025-122026-03
AUM ($B)fundS&P 500(gap = α)/ Flow in/out

Behavior signals (lifetime)

Dip response
+0.00%
trims when stocks drop
when a holding falls −10%+
Middle response
+0.00%
baseline attrition
Rally response
+0.00%
adds into rallies
when a holding rises +10%+

Top positions · 2

Ticker$ value% portYoYHold time
$394M94.2%2.5 yr
DECDiversified Energy Compa$24M5.8%0.5 yr

Portfolio composition (YoY)

Industry mix
Unknown94.2%-0.6pp$394M
Oil & Gas Exploration & Production5.8%$24M
Country
Unknown94.2%-0.6pp
US5.8%+0.6pp
Top 5: 100.0% · Top 10: 100.0% · Top 25: 100.0%

Winners

TickerPrev $PnLYoY %

Losers

TickerPrev $PnLYoY %

Top buys this quarter · 0

No buys this quarter

Top sells this quarter · 2

$388M
CPS Cooper-Standard Holdings Inc.exit$26M

Quarterly history (TTM returns)

PeriodAUM# PosReturn (1yr)SPY (1yr)Alpha (1yr)Flow
2026-03-31$418M2+132.53%+17.59%+114.94%-0.04B
2025-12-31$439M3+151.61%+17.72%+133.90%+0.09B
2025-09-30$375M2+166.26%+17.52%+148.74%-0.23B
2025-06-30$354M2+72.83%+14.94%+57.89%-0.04B
2025-03-31$278M2+6.24%+8.30%-2.06%-0.04B
2024-12-31$279M3-23.41%+24.89%-48.29%-0.01B
2024-09-30$291M3+11.50%+5.75%+5.74%+0.01B
2024-06-30$252M3-13.73%+4.38%-18.11%+0.03B
2024-03-31$259M4-18.55%+10.39%-28.94%+0.06B
2023-12-31$246M4