12th Street Asset Management Company, LLC

Fundamental concentrated ★Highest signal CIK 1633703
League rank
#583
in Fundamental concentrated · #3090 overall
Long book
$611.4M
Q1 2026
Positions
32
Top-10 weight
58%
concentration
Last quarter
+12.4%
SPY +14.8%
Turnover
12%
of book per quarter

Strategy in plain words

auto-generated from filings

12th Street Asset Management Company, LLC is a concentrated fundamental stock-picker, running a $611.4M US long book across 32 positions.

The portfolio is concentrated: the top 10 names carry 58% of the portfolio. Turnover is modest: positions are typically held for years. Current anchor positions: CLEAN HARBORS INC, LKQ CORP, KIRBY CORP, SS SPDR BB 1-3M T-BILL ETF, CRH PLC.

Over the last 9 quarters its long book ran on average 0.9pp per quarter behind the S&P 500, beating the index in 4 of 9 quarters. We rate its filings highest-signal: new buys here are worth attention.

Implied long-book return vs S&P 500

methodology: positions priced quarterly, no shorts/options
Fund long book S&P 500
Q1 2024
-4.4%
Q2 2024
+8.5%
Q3 2024
-0.8%
Q4 2024
-2.7%
Q1 2025
+3.1%
Q2 2025
+6.0%
Q3 2025
+4.5%
Q4 2025
+5.6%
Q1 2026
+12.4%

Sector allocation

Industrials
34%
Financials
16%
Consumer discretionary
14%
Utilities
10%
Technology
9%
Services media
7%
Other
7%
Energy
2%

Long book by quarter

$576.5M
Q1 2024
$548.0M
Q2 2024
$593.0M
Q3 2024
$606.6M
Q4 2024
$586.8M
Q1 2025
$581.7M
Q2 2025
$591.2M
Q3 2025
$606.8M
Q4 2025
$611.4M
Q1 2026

What does 12th Street own?

Q1 2026 13F
CompanySectorSharesValue% of bookChange
CLH CLEAN HARBORS INCUtilities204.7K$58.7M9.6%-2.6%
LKQ LKQ CORPConsumer discretionary1.4M$40.7M6.7%+6.5%
KEX KIRBY CORPIndustrials291.1K$38.7M6.3%-2.3%
CRH CRH PLCIndustrials332.6K$35.0M5.7%+2.3%
PNFP PINNACLE FINANCIAL PARTNERSFinancials402.3K$34.7M5.7%New
SGI SOMNIGROUP INTERNATIONAL INCOther408.6K$30.2M4.9%-3.8%
KNX KNIGHT-SWIFT TRANSPORTATIONIndustrials489.4K$28.2M4.6%+165.8%
AZO AUTOZONE INCConsumer discretionary8.3K$28.0M4.6%-3.8%
BC BRUNSWICK CORPIndustrials351.9K$25.6M4.2%-1.9%
CIEN CIENA CORPTechnology63.5K$24.6M4.0%-64.6%
DY DYCOM INDUSTRIES INCIndustrials68.5K$23.2M3.8%+1.8%
HQY HEALTHEQUITY INCServices media251.4K$21.0M3.4%-3.0%
RBA RB GLOBAL INCServices media212.3K$20.3M3.3%-3.6%
FHN FIRST HORIZON CORPFinancials698.9K$15.9M2.6%-5.6%
SNEX STONEX GROUP INCFinancials187.0K$15.1M2.5%+50.5%
MAS MASCO CORPIndustrials225.0K$13.6M2.2%-4.8%
GNRC GENERAC HOLDINGS INCIndustrials66.9K$13.1M2.1%New
RUSHA RUSH ENTERPRISES INC-CL AConsumer discretionary195.3K$12.9M2.1%+78.5%
FBK FB FINANCIAL CORPFinancials247.0K$12.8M2.1%+0.3%
DELL DELL TECHNOLOGIES -CTechnology75.1K$12.3M2.0%-1.5%
IIIV I3 VERTICALS INC-CLASS ATechnology522.8K$11.7M1.9%-12.1%
PGR PROGRESSIVE CORPFinancials50.6K$10.0M1.6%-3.9%
FANG DIAMONDBACK ENERGY INCEnergy49.3K$9.8M1.6%-2.1%
GVA GRANITE CONSTRUCTION INCIndustrials62.4K$7.5M1.2%+0.3%
HROW HARROW INCHealthcare168.7K$5.9M1.0%+85.2%
GOLF ACUSHNET HOLDINGS CORPOther62.1K$5.8M1.0%+0.4%
ROAD CONSTRUCTION PARTNERS INC-AIndustrials51.6K$5.7M0.9%+0.4%
EXP EAGLE MATERIALS INCIndustrials27.1K$5.1M0.8%+0.6%
LPX LOUISIANA-PACIFIC CORPOther42.9K$3.1M0.5%+0.6%

13F filing history

PeriodFormFiledEntriesReported valueFlagsSource
Q1 202613F-HRMay 12, 202632$611.4M canonicalSEC ↗
Q4 202513F-HRFeb 9, 202632$606.8M canonicalSEC ↗
Q3 202513F-HRNov 6, 202530$591.2M canonicalSEC ↗
Q2 202513F-HRAug 11, 202530$581.7M canonicalSEC ↗
Q1 202513F-HRMay 8, 202529$586.8M canonicalSEC ↗
Q4 202413F-HRFeb 10, 202531$606.6M canonicalSEC ↗
Q3 202413F-HRNov 12, 202430$593.0M canonicalSEC ↗
Q2 202413F-HRAug 9, 202430$548.0M canonicalSEC ↗
Q1 202413F-HRMay 10, 202429$576.5M canonicalSEC ↗