IMC Chicago Portfolio holdings
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.
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$568M |
| 2 |
Amazon
AMZN
|
+$341M |
| 3 |
iShares MSCI South Korea ETF
EWY
|
+$278M |
| 4 |
Apple
AAPL
|
+$239M |
| 5 |
TSMC
TSM
|
+$215M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
State Street SPDR S&P 500 ETF Trust
SPY
|
+$316M |
| 2 |
Tesla
TSLA
|
+$253M |
| 3 |
Micron Technology
MU
|
+$178M |
| 4 |
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 | |
|---|---|---|---|---|---|---|
1751
PUT
State Street
STT
$53.4B
| $7.63M | ﹤0.01% |
45,000
+7,300
| +19% | +$1.13M |
|
1752
PUT
Mobileye
MBLY
$7.28B
| $7.63M | ﹤0.01% |
787,900
+118,300
| +18% | +$1.05M |
|
1753
CALL
Archer Aviation
ACHR
$4.4B
| $7.63M | ﹤0.01% |
1,612,300
-221,600
| -12% | -$1.29M |
|
1754
CALL
JetBlue
JBLU
$1.75B
| $7.62M | ﹤0.01% |
1,330,200
+85,000
| +7% | +$433K |
|
1755
Unum
UNM
$15.2B
| $7.62M | ﹤0.01% |
+85,230
| New | +$7.06M |
|
1756
CALL
Republic Services
RSG
$68.2B
| $7.61M | ﹤0.01% |
35,700
+18,700
| +110% | +$3.91M |
|
1757
PUT
Equinor
EQNR
$99.9B
| $7.6M | ﹤0.01% |
242,100
-159,400
| -40% | -$5.95M |
|
1758
CALL
First Horizon
FHN
$11.8B
| $7.58M | ﹤0.01% |
295,700
-336,700
| -53% | -$8.21M |
|
|
VG
1759
PUT
Venture Global Inc
VG
$36.1B
| $7.58M | ﹤0.01% |
680,800
+27,900
| +4% | +$353K |
|
1760
CALL
LPL Financial
LPLA
$28.3B
| $7.58M | ﹤0.01% |
26,900
+10,800
| +67% | +$3.24M |
|
1761
CALL
Logitech
LOGI
$14.6B
| $7.57M | ﹤0.01% |
80,500
-200
| -0.2% | -$20.8K |
|
1762
PUT
BridgeBio Pharma
BBIO
$14.6B
| $7.57M | ﹤0.01% |
101,600
+47,800
| +89% | +$3.35M |
|
1763
PUT
-1x Short VIX Futures ETF
SVIX
$160M
| $7.56M | ﹤0.01% |
318,100
+96,400
| +43% | +$1.95M |
|
1764
CALL
Warrior Met Coal
HCC
$5.52B
| $7.55M | ﹤0.01% |
93,000
-4,900
| -5% | -$443K |
|
|
KLAR
1765
CALL
Klarna Group
KLAR
$5.46B
| $7.54M | ﹤0.01% |
372,700
+272,700
| +273% | +$4.29M |
|
1766
CALL
Pool Corp
POOL
$6.73B
| $7.54M | ﹤0.01% |
35,100
+15,600
| +80% | +$3.11M |
|
1767
PUT
Quantum Computing Inc
QUBT
$1.81B
| $7.54M | ﹤0.01% |
777,400
+338,500
| +77% | +$3.29M |
|
|
FITB
1768
CALL
Fifth Third Bancorp
FITB
$49.8B
| $7.54M | ﹤0.01% |
133,700
-107,300
| -45% | -$5.44M |
|
|
KLAR
1769
PUT
Klarna Group
KLAR
$5.46B
| $7.5M | ﹤0.01% |
370,500
+219,600
| +146% | +$3.46M |
|
1770
Affirm
AFRM
$24.4B
| $7.49M | ﹤0.01% |
91,880
-20,802
| -18% | -$1.36M |
|
1771
CALL
First Citizens BancShares
FCNCA
$24.9B
| $7.49M | ﹤0.01% |
3,600
| – | – |
|
1772
PUT
Red Cat Holdings
RCAT
$1.28B
| $7.48M | ﹤0.01% |
702,300
+52,500
| +8% | +$605K |
|
1773
PG&E
PCG
$31.5B
| $7.48M | ﹤0.01% |
444,486
+371,805
| +512% | +$6.26M |
|
1774
PUT
ProShares Ether Strategy ETF
EETH
$68.8M
| $7.47M | ﹤0.01% |
254,300
-13,800
| -5% | -$349K |
|
1775
PUT
L3Harris
LHX
$47.8B
| $7.47M | ﹤0.01% |
25,700
-7,300
| -22% | -$2.32M |
|
Similar funds
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.