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 | |
|---|---|---|---|---|---|---|
5901
CALL
NerdWallet
NRDS
$632M
| $123K | ﹤0.01% |
+13,300
| New | +$124K |
|
5902
SES AI
SES
$187M
| $123K | ﹤0.01% |
127,841
+57,065
| +81% | +$62.1K |
|
5903
Sprout Social
SPT
$688M
| $122K | ﹤0.01% |
16,168
-5,010
| -24% | -$32.6K |
|
5904
Allot
ALLT
$374M
| $121K | ﹤0.01% |
13,716
-8,377
| -38% | -$62.4K |
|
5905
CALL
Vista Gold
VGZ
$327M
| $121K | ﹤0.01% |
63,400
+27,000
| +74% | +$58.9K |
|
5906
Navient
NAVI
$903M
| $121K | ﹤0.01% |
14,186
-3,242
| -19% | -$27.2K |
|
5907
PUT
SFL Corp
SFL
$1.78B
| $120K | ﹤0.01% |
11,800
-11,700
| -50% | -$133K |
|
5908
CALL
Flowers Foods
FLO
$1.33B
| $120K | ﹤0.01% |
+15,200
| New | +$122K |
|
5909
PUT
Imperial Petroleum
IMPP
$241M
| $119K | ﹤0.01% |
25,900
-6,000
| -19% | -$29.2K |
|
5910
CALL
Vuzix
VUZI
$206M
| $119K | ﹤0.01% |
41,100
+5,700
| +16% | +$18K |
|
5911
Arbe Robotics
ARBE
$81M
| $119K | ﹤0.01% |
143,115
-44,327
| -24% | -$38.3K |
|
|
FPI
5912
Farmland Partners
FPI
$465M
| $118K | ﹤0.01% |
+12,227
| New | +$130K |
|
|
FPI
5913
CALL
Farmland Partners
FPI
$465M
| $118K | ﹤0.01% |
+12,200
| New | +$130K |
|
5914
CALL
Upexi
UPXI
$78.6M
| $118K | ﹤0.01% |
150,400
-36,200
| -19% | -$42K |
|
5915
CALL
Aemetis
AMTX
$132M
| $118K | ﹤0.01% |
71,900
+800
| +1% | +$1.96K |
|
|
AGNT
5916
CALL
AGNT Inc
AGNT
$673M
| $117K | ﹤0.01% |
21,700
-31,200
| -59% | -$172K |
|
5917
PUT
Cardlytics
CDLX
$21.3M
| $117K | ﹤0.01% |
26,100
+22,190
| +568% | +$166K |
|
|
5918
CALL
SES AI
SES
$187M
| $117K | ﹤0.01% |
121,700
+32,000
| +36% | +$34.8K |
|
|
SMCZ
5919
Defiance Daily Target 2X Short SMCI ETF
SMCZ
$5.9M
| $116K | ﹤0.01% |
12,875
+5,940
| +86% | +$111K |
|
|
5920
PUT
SES AI
SES
$187M
| $116K | ﹤0.01% |
120,600
+48,300
| +67% | +$52.6K |
|
5921
Ampco-Pittsburgh
AP
$179M
| $115K | ﹤0.01% |
+13,316
| New | +$135K |
|
|
MOMO
5922
Hello Group
MOMO
$710M
| $115K | ﹤0.01% |
19,839
-3,891
| -16% | -$23.2K |
|
|
PEW
5923
GrabAGun Digital Holdings
PEW
$69.4M
| $115K | ﹤0.01% |
50,350
-9,813
| -16% | -$27.2K |
|
5924
PUT
Leslie's
LESL
$5.36M
| $115K | ﹤0.01% |
+11,300
| New | +$44.3K |
|
5925
PUT
Altimmune
ALT
$665M
| $114K | ﹤0.01% |
37,600
-11,200
| -23% | -$33.5K |
|
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.