IMC-Chicago, LLC

Market maker Mechanical CIK 1452861
League rank
#7
in Market maker · #600 overall
Long book
$6.60B
Q1 2026
Positions
1290
Top-10 weight
34%
concentration
Last quarter
+20.1%
SPY +14.8%
Turnover
67%
of book per quarter

Strategy in plain words

auto-generated from filings

IMC-Chicago, LLC is a market maker — positions are inventory, not bets, running a $6.60B US long book across 1290 positions.

The portfolio is moderately concentrated (top 10 ≈ 34% of the book). Turnover is high — positions rotate quickly, so individual names matter less than the process. Current anchor positions: TESLA INC, SPROTT PHYSICAL SILVER TRUST, SS SPDR S&P 500 ETF TRUST-US, MICRON TECHNOLOGY INC, TAIWAN SEMICONDUCTOR-SP ADR.

Over the last 9 quarters its long book ran on average 4.5pp per quarter ahead of the S&P 500, beating the index in 7 of 9 quarters. Its holdings are mechanical (indexing / client flows), so position changes carry no stock-picking signal.

Implied long-book return vs S&P 500

methodology: positions priced quarterly, no shorts/options
Fund long book S&P 500
Q1 2024
+12.2%
Q2 2024
+8.2%
Q3 2024
+16.3%
Q4 2024
-3.8%
Q1 2025
+18.0%
Q2 2025
+14.7%
Q3 2025
-0.8%
Q4 2025
-4.5%
Q1 2026
+20.1%

Sector allocation

Technology
38%
Industrials
22%
Financials
10%
Consumer discretionary
7%
Other
5%
Materials
5%
Services media
5%
Healthcare
4%

Long book by quarter

$2.87B
Q1 2024
$3.12B
Q2 2024
$3.46B
Q3 2024
$3.67B
Q4 2024
$2.58B
Q1 2025
$4.00B
Q2 2025
$5.64B
Q3 2025
$5.69B
Q4 2025
$6.60B
Q1 2026

What does IMC-Chicago, LLC own?

Q1 2026 13F
CompanySectorSharesValue% of bookChange
TSLA TESLA INCIndustrials1.4M$520.6M7.9%+68.5%
MU MICRON TECHNOLOGY INCTechnology731.2K$247.0M3.7%-7.8%
META META PLATFORMS INC-CLASS ATechnology226.1K$129.4M2.0%+472.8%
ORCL ORACLE CORPTechnology722.2K$106.2M1.6%New
AVGO BROADCOM INCTechnology327.4K$101.3M1.5%-38.2%
GOOGL ALPHABET INC-CL ATechnology337.3K$97.0M1.5%+346.5%
SNDK SANDISK CORPTechnology145.8K$92.7M1.4%+142.6%
ASML ASML HOLDING NV-NY REG SHSIndustrials51.9K$68.5M1.0%New
LITE LUMENTUM HOLDINGS INCTechnology93.5K$65.7M1.0%New
AMD ADVANCED MICRO DEVICESTechnology305.2K$62.1M0.9%+186.6%
AMZN AMAZON.COM INCConsumer discretionary265.7K$55.3M0.8%New
ROK ROCKWELL AUTOMATION INCOther126.7K$45.5M0.7%+985.6%
COST COSTCO WHOLESALE CORPConsumer discretionary43.6K$43.4M0.7%New
FND FLOOR & DECOR HOLDINGS INC-AConsumer discretionary837.0K$42.5M0.6%+467.1%
PYPL PAYPAL HOLDINGS INCServices media915.5K$41.4M0.6%+494.2%
PLTR PALANTIR TECHNOLOGIES INC-ATechnology278.6K$40.7M0.6%-53.7%
BMNR BITMINE IMMERSION TECHNOLOGIFinancials2.0M$39.7M0.6%+43.4%
IBM INTL BUSINESS MACHINES CORPTechnology158.9K$38.5M0.6%-1.6%
SOFI SOFI TECHNOLOGIES INCFinancials2.3M$36.6M0.6%+57.3%
WFC WELLS FARGO & COFinancials451.1K$35.9M0.5%New
INTC INTEL CORPTechnology740.9K$32.7M0.5%-60.7%
BSX BOSTON SCIENTIFIC CORPHealthcare520.4K$32.7M0.5%+632.1%
NKE NIKE INC -CL BOther616.1K$32.5M0.5%+697.4%
AG FIRST MAJESTIC SILVER CORPMaterials1.4M$31.0M0.5%+0.3%
V VISA INC-CLASS A SHARESServices media93.9K$28.4M0.4%+242.6%
ONDS ONDAS INCTechnology3.0M$27.2M0.4%+761.6%
UAL UNITED AIRLINES HOLDINGS INCIndustrials291.3K$26.8M0.4%+447.5%
AXTI AXT INCTechnology456.0K$26.0M0.4%New
CI THE CIGNA GROUPFinancials92.5K$24.7M0.4%+31.6%
FCX FREEPORT-MCMORAN INCMaterials412.1K$24.2M0.4%+88.0%
MAR MARRIOTT INTERNATIONAL -CL AServices media74.0K$24.2M0.4%-20.3%
KMT KENNAMETAL INCIndustrials647.5K$23.4M0.4%New
GE GENERAL ELECTRICIndustrials79.9K$22.7M0.3%New
PAAS PAN AMERICAN SILVER CORPMaterials411.2K$22.5M0.3%+52.7%
CMG CHIPOTLE MEXICAN GRILL INCConsumer discretionary684.7K$21.9M0.3%+366.6%
CRWV COREWEAVE INC-CL ATechnology282.5K$21.9M0.3%-39.1%
WDC WESTERN DIGITAL CORPTechnology75.5K$20.4M0.3%New
ALAB ASTERA LABS INCTechnology176.1K$19.3M0.3%-9.3%
TER TERADYNE INCTechnology64.0K$19.0M0.3%New
KKR KKR & CO INCFinancials202.3K$18.7M0.3%New
BAC BANK OF AMERICA CORPFinancials375.9K$18.3M0.3%New
HOOD ROBINHOOD MARKETS INC - AFinancials246.5K$17.1M0.3%+178.6%
NET CLOUDFLARE INC - CLASS ATechnology82.1K$16.9M0.3%+28.6%
SPOT SPOTIFY TECHNOLOGY SACommunications34.5K$16.7M0.3%+44.7%
SMCI SUPER MICRO COMPUTER INCTechnology726.4K$16.5M0.3%-41.0%
LRCX LAM RESEARCH CORPIndustrials76.7K$16.4M0.2%New
TTWO TAKE-TWO INTERACTIVE SOFTWRETechnology82.2K$16.2M0.2%+198.0%
MS MORGAN STANLEYFinancials98.6K$16.2M0.2%+225.2%
RCL ROYAL CARIBBEAN CRUISES LTDIndustrials55.9K$15.4M0.2%+102.8%
IREN IREN LTDFinancials447.1K$15.3M0.2%-42.1%

13F filing history

PeriodFormFiledEntriesReported valueFlagsSource
Q1 202613F-HRMay 5, 20266112$278.36B canonicalSEC ↗
Q4 202513F-HRJan 29, 20264278$275.42B canonicalSEC ↗
Q3 202513F-HRNov 4, 20253755$275.04B canonicalSEC ↗
Q2 202513F-HRJul 22, 20253502$225.16B canonicalSEC ↗
Q1 202513F-HRApr 14, 20253270$176.65B canonicalSEC ↗
Q4 202413F-HRJan 27, 20253302$214.66B canonicalSEC ↗
Q3 202413F-HROct 25, 20242933$183.84B canonicalSEC ↗
Q2 202413F-HRJul 15, 20242762$164.04B canonicalSEC ↗
Q1 202413F-HRApr 12, 20242498$162.79B canonicalSEC ↗