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IMC Chicago

IMC Chicago Portfolio holdings

AUM $419B
1-Year Est. Return 72.04%
 

IMC-Chicago, a key arm of IMC Trading founded in 1989 by Rob Defares and René Schelvis in Amsterdam, is a proprietary trading firm and market maker headquartered in Chicago since opening its first overseas office there in 2000. Employing over 650 of IMC’s 1,600+ global workforce, it operates at the heart of North America’s financial hub, trading equities, options, futures, and other derivatives on major exchanges like the Chicago Mercantile Exchange (CME) and Chicago Board Options Exchange (CBOE). Known for its technology-driven approach, IMC-Chicago leverages advanced algorithms and low-latency systems to provide liquidity across more than 100 global venues, evolving from a trading outfit with strong tech to a tech company that trades. Under CEO Rob Defares, the firm emphasizes innovation, quantitative strategies, and a collaborative culture, making it a powerhouse in the U.S. derivatives market.

This Fund
S&P 500
This Quarter Est. Return
+37.99%
1 Year Est. Return
+72.04%
3 Year Est. Return
+250.38%
5 Year Est. Return
+244.63%
10 Year Est. Return
–
AUM
$419B
AUM Growth
+$140B
Cap. Flow
+$2.99B
Cap. Flow %
0.71%
Top 10 Hldgs %
33.71%
Holding
6,955
New
1,282
Increased
3,251
Reduced
1,751
Closed
653

Top Buys

Rank Stock Value
1
DIA icon
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
+$568M
2
AMZN icon
Amazon
AMZN
+$341M
3
EWY icon
iShares MSCI South Korea ETF
EWY
+$278M
4
AAPL icon
Apple
AAPL
+$239M
5
TSM icon
TSMC
TSM
+$215M

Top Sells

Rank Stock Value
1
SPY icon
State Street SPDR S&P 500 ETF Trust
SPY
+$316M
2
TSLA icon
Tesla
TSLA
+$253M
3
MU icon
Micron Technology
MU
+$178M
4
IBIT icon
iShares Bitcoin Trust
IBIT
+$176M
5
SNDK
Sandisk
SNDK
+$159M

Sector Composition

Rank Sector Weight
1 Miscellaneous 97.94%
2 Technology 0.92%
3 Consumer Discretionary 0.31%
4 Financials 0.17%
5 Communication Services 0.16%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
WWR icon
6851
PUT
Westwater Resources
WWR
$71.3M
– –
-95,400
Closed -$62.4K
XERS icon
6852
Xeris Biopharma Holdings
XERS
$1.57B
– –
-10,881
Closed -$69.5K
XLF icon
6853
State Street Financial Select Sector SPDR ETF
XLF
$55.9B
– –
-173,206
Closed -$9M
XNTK icon
6854
State Street SPDR NYSE Technology ETF
XNTK
$1.98B
– –
-13,951
Closed -$4.67M
XPOF icon
6855
Xponential Fitness
XPOF
$208M
– –
-12,660
Closed -$80.1K
YELP icon
6856
Yelp
YELP
$1.2B
– –
-11,440
Closed -$285K
YETI icon
6857
Yeti Holdings
YETI
$3.02B
– –
-18,723
Closed -$812K
YEXT icon
6858
CALL
Yext
YEXT
$637M
– –
-37,100
Closed -$142K
YMM icon
6859
CALL
Full Truck Alliance
YMM
$8.9B
– –
-83,800
Closed -$696K
ZEPP
6860
CALL
Zepp Health
ZEPP
$66.1M
– –
-18,400
Closed -$220K
ZEPP
6861
PUT
Zepp Health
ZEPP
$66.1M
– –
-12,400
Closed -$148K
ZH
6862
CALL
Zhihu
ZH
$217M
– –
-10,500
Closed -$29.8K
ZIM icon
6863
ZIM Integrated Shipping Services
ZIM
$3.33B
– –
-8,307
Closed -$214K
ZROZ icon
6864
PIMCO 25+ Year Zero Coupon US Treasury Index Exchange-Traded Fund
ZROZ
$1.65B
– –
-13,884
Closed -$889K
QQQI icon
6865
NEOS Nasdaq 100 High Income ETF
QQQI
$14.3B
– –
-4,186
Closed -$208K
PRKS icon
6866
PUT
United Parks & Resorts
PRKS
$1.84B
– –
-9,300
Closed -$304K
CRML icon
6867
Critical Metals Corp
CRML
$1.08B
– –
-33,703
Closed -$361K
ULTY icon
6868
YieldMax Ultra Option Income Strategy ETF
ULTY
$740M
– –
-13,099
Closed -$402K
ALAB icon
6869
Astera Labs
ALAB
$49.1B
– –
-176,073
Closed -$46.7M
GEV icon
6870
GE Vernova
GEV
$251B
– –
-12,483
Closed -$12.7M
HAFN icon
6871
PUT
Hafnia
HAFN
$4.46B
– –
-11,800
Closed -$89.7K
FER icon
6872
CALL
Ferrovial N.V. Ordinary Shares
FER
$41.9B
– –
-3,736
Closed -$241K
LION icon
6873
Lionsgate Studios
LION
$3.3B
– –
-39,623
Closed -$512K
LB
6874
LandBridge Co
LB
$2.45B
– –
-4,213
Closed -$289K
RPT
6875
PUT
Rithm Property Trust
RPT
$99.6M
– –
-10,400
Closed -$139K
273 274
275
276 277

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IMC Chicago's Q2 2026 Portfolio in Review

As of Q2 2026, IMC Chicago held 6,955 positions worth $419B, up 50% from $278B the previous quarter. Its ten largest holdings account for 34% of the portfolio.

IMC Chicago's Q2 2026 filing shows 1,282 new, 3,251 increased, 1,751 reduced and 653 closed positions. Its largest new stake was Microsoft: 303,034 shares worth $113M. The largest sale was State Street SPDR S&P 500 ETF Trust, an estimated $316M.

By sector, the portfolio is most concentrated in Miscellaneous at 98% of assets, down from 98% a quarter earlier, followed by Technology and Consumer Discretionary.

  • IMC Chicago's largest Q2 2026 buy was Microsoft: 303,034 shares worth $113M.
  • IMC Chicago added most to State Street SPDR Dow Jones Industrial Average ETF Trust in Q2 2026, an estimated $568M increase.
  • IMC Chicago's biggest Q2 2026 reduction was Tesla, cutting an estimated $253M.
  • IMC Chicago fully exited State Street SPDR S&P 500 ETF Trust in Q2 2026, selling an estimated $316M.
  • IMC Chicago's ten largest holdings make up 34% of its $419B portfolio in Q2 2026.
  • IMC Chicago opened 1,282 new positions and closed 653 in Q2 2026.
  • IMC Chicago's portfolio value rose 50% quarter-over-quarter to $419B.

Based on IMC Chicago's 13F filing for Q2 2026, filed 6 Aug 2026.