Stocks/Funds/CIK 1432450

BRIGHTLINE CAPITAL MANAGEMENT, LLC

concentrated
Quarterly 13F filings · Latest period 2026-03-31 · CIK 1432450
Assets
$317M
+175.0% YoY
Holdings
8
Lifetime alpha vs market
+23.99% annual
Average hold time
1.3 yr
median 1.1 yr

Quarterly history

Cum return +217% vs S&P +42% · α +176% lifetimeAUM $317M · peak $317MFlow $35M (+15%)2017-122019-032020-092021-122023-062024-092025-122026-03
AUM ($B)fundS&P 500(gap = α)/ Flow in/out

Behavior signals (lifetime)

Dip response
+3.90%
adds when stocks drop
when a holding falls −10%+
Middle response
+6.17%
steady accumulation
Rally response
-6.67%
trims into rallies
when a holding rises +10%+

Top positions · 8

Ticker$ value% portYoYHold time
VSATViasat, Inc.$96M30.3%+339.5%1.3 yr
CSTMConstellium SE$45M14.3%+143.6%2.8 yr
DANDana Incorporated$39M12.2%+157.7%2.3 yr
AMTMAmentum Holdings, Inc.$36M11.5%+43.3%1.0 yr
ECVTEcovyst Inc.$36M11.4%+107.4%0.5 yr
FLRFluor Corporation$28M8.8%+30.2%2.0 yr
RRXRegal Rexnord Corporatio$23M7.4%+65.7%0.3 yr
TGBTaseko Mines Limited$13M4.1%+187.9%0.3 yr

Portfolio composition (YoY)

Industry mix
Communication Equipment30.3%$96M
Aluminum14.3%+7.8pp$45M
Auto - Parts12.2%$39M
Aerospace & Defense11.5%$36M
Chemicals - Specialty11.4%$36M
Engineering & Construction8.8%-21.9pp$28M
Industrial - Machinery7.4%+5.3pp$23M
Copper4.1%$13M
Country
US81.6%-8.6pp
FR14.3%+7.8pp
CA4.1%
Top 5: 79.7% · Top 10: 100.0% · Top 25: 100.0%

Winners

TickerPrev $PnLYoY %
CSTM$8M+0.01B143.6%
FLR$19M+0.01B30.2%

Losers

TickerPrev $PnLYoY %

Top buys this quarter · 8

RRX Regal Rexnord Corporationnew+$23M
TGB Taseko Mines Limitednew+$13M
ECVT Ecovyst Inc.+$10M
FLR Fluor Corporation+$2M
VSAT Viasat, Inc.+$0M
DAN Dana Incorporated+$0M
CSTM Constellium SE+$0M
AMTM Amentum Holdings, Inc.+$36M

Top sells this quarter · 1

SEI Solaris Energy Infrastructure,exit$14M

Quarterly history (TTM returns)

PeriodAUM# PosReturn (1yr)SPY (1yr)Alpha (1yr)Flow
2026-03-31$317M8+134.04%+17.59%+116.45%+0.04B
2025-12-31$228M7+57.57%+17.72%+39.85%-0.05B
2025-09-30$244M10+37.37%+17.52%+19.85%-0.06B
2025-06-30$232M15+22.25%+14.94%+7.31%+0.09B
2025-03-31$115M12-7.22%+8.30%-15.52%-0.01B
2024-12-31$146M13+26.49%+24.89%+1.61%-0.08B
2024-09-30$230M19+49.13%+36.04%+13.09%+0.01B
2024-06-30$193M18+37.65%+24.49%+13.16%+0.03B
2024-03-31$166M15+45.34%+29.62%+15.72%+0.06B
2023-12-31$92M10+33.03%+26.30%+6.73%+0.06B
2023-09-30$24M4+19.29%+7.55%+11.74%+0.02B
2023-06-30$9M1+2.25%-6.77%+9.02%-0.04B
2022-12-31$45M5+3.78%+7.56%-3.78%-0.01B
2022-09-30$50M5+6.01%-4.93%+10.94%+0.00B
2022-06-30$43M4-8.66%-16.11%+7.45%-0.09B
2022-03-31$143M9-0.01B