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 | |
|---|---|---|---|---|---|---|
5926
CALL
Angi Inc
ANGI
$199M
| $114K | ﹤0.01% |
+19,200
| New | +$118K |
|
5927
PUT
Full House Resorts
FLL
$75.9M
| $114K | ﹤0.01% |
+40,900
| New | +$108K |
|
|
LX
5928
PUT
LexinFintech Holdings
LX
$145M
| $114K | ﹤0.01% |
57,700
+10,600
| +23% | +$22.6K |
|
5929
PUT
Fulcrum Therapeutics
FULC
$294M
| $113K | ﹤0.01% |
+30,900
| New | +$188K |
|
5930
CALL
Prospect Capital
PSEC
$1.14B
| $112K | ﹤0.01% |
48,700
-53,900
| -53% | -$133K |
|
5931
American Well
AMWL
$221M
| $112K | ﹤0.01% |
+12,333
| New | +$92.1K |
|
|
NB
5932
NioCorp Developments
NB
$601M
| $112K | ﹤0.01% |
23,313
-22,445
| -49% | -$123K |
|
5933
FS KKR Capital
FSK
$3.44B
| $112K | ﹤0.01% |
+10,700
| New | +$115K |
|
5934
CALL
Aveanna Healthcare
AVAH
$2.96B
| $112K | ﹤0.01% |
+13,100
| New | +$92.3K |
|
5935
CALL
Gogo Inc
GOGO
$385M
| $112K | ﹤0.01% |
36,200
-49,800
| -58% | -$203K |
|
5936
CALL
Nano X Imaging
NNOX
$65.2M
| $112K | ﹤0.01% |
96,400
+47,300
| +96% | +$89K |
|
|
DHC
5937
Diversified Healthcare Trust
DHC
$1.82B
| $111K | ﹤0.01% |
+11,950
| New | +$97.9K |
|
5938
CALL
Ceragon Networks
CRNT
$192M
| $111K | ﹤0.01% |
+42,800
| New | +$112K |
|
5939
AudioCodes
AUDC
$245M
| $110K | ﹤0.01% |
+11,393
| New | +$104K |
|
5940
PUT
Xeris Biopharma Holdings
XERS
$1.56B
| $110K | ﹤0.01% |
+13,900
| New | +$88.8K |
|
5941
PUT
Ocugen
OCGN
$461M
| $110K | ﹤0.01% |
71,800
+4,800
| +7% | +$7.3K |
|
5942
CALL
Adecoagro
AGRO
$1.7B
| $110K | ﹤0.01% |
11,500
-17,100
| -60% | -$215K |
|
|
CAN
5943
Canaan Creative
CAN
$268M
| $109K | ﹤0.01% |
381,250
+15,465
| +4% | +$6.72K |
|
5944
CALL
Alta Equipment Group
ALTG
$199M
| $109K | ﹤0.01% |
+16,900
| New | +$113K |
|
|
DEFT
5945
CALL
Defi Technologies
DEFT
$265M
| $109K | ﹤0.01% |
212,400
+45,100
| +27% | +$30.6K |
|
5946
CALL
ReposiTrak
TRAK
$144M
| $109K | ﹤0.01% |
+12,100
| New | +$111K |
|
5947
Gold Royalty Corp
GROY
$776M
| $109K | ﹤0.01% |
39,375
-37,703
| -49% | -$124K |
|
|
NAKA
5948
CALL
Nakamoto Inc
NAKA
$145M
| $109K | ﹤0.01% |
27,500
+25,647
| +1,384% | +$171K |
|
5949
CALL
Ocean Power Technologies
OPTT
$50.6M
| $109K | ﹤0.01% |
414,400
+225,700
| +120% | +$76.5K |
|
5950
PUT
StealthGas
GASS
$350M
| $108K | ﹤0.01% |
13,700
-7,700
| -36% | -$72.5K |
|
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.