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 | |
|---|---|---|---|---|---|---|
1801
Navitas Semiconductor
NVTS
$3.08B
| $7.22M | ﹤0.01% |
403,158
+215,663
| +115% | +$4.11M |
|
1802
CALL
Murphy USA
MUSA
$9.4B
| $7.22M | ﹤0.01% |
13,400
-1,000
| -7% | -$543K |
|
1803
FormFactor
FORM
$8.12B
| $7.22M | ﹤0.01% |
+45,135
| New | +$5.99M |
|
1804
PUT
Camtek
CAMT
$6.8B
| $7.21M | ﹤0.01% |
44,200
+36,800
| +497% | +$6.52M |
|
1805
CALL
Boot Barn
BOOT
$4.67B
| $7.18M | ﹤0.01% |
43,700
+25,200
| +136% | +$4.09M |
|
1806
CALL
SentinelOne
S
$6.92B
| $7.17M | ﹤0.01% |
422,300
+73,800
| +21% | +$1.14M |
|
1807
CALL
Canadian National Railway
CNI
$74.6B
| $7.17M | ﹤0.01% |
60,100
+22,900
| +62% | +$2.61M |
|
1808
CALL
BorgWarner
BWA
$13.8B
| $7.16M | ﹤0.01% |
107,800
-14,200
| -12% | -$899K |
|
1809
CALL
Textron
TXT
$13.6B
| $7.14M | ﹤0.01% |
77,800
+25,700
| +49% | +$2.33M |
|
1810
CALL
VICI Properties
VICI
$28B
| $7.13M | ﹤0.01% |
268,600
+93,400
| +53% | +$2.62M |
|
1811
CALL
Ichor Holdings
ICHR
$2.11B
| $7.13M | ﹤0.01% |
63,500
+39,900
| +169% | +$2.88M |
|
1812
Cleveland-Cliffs
CLF
$7.13B
| $7.13M | ﹤0.01% |
759,049
+506,692
| +201% | +$5.57M |
|
|
1813
PUT
BorgWarner
BWA
$13.8B
| $7.12M | ﹤0.01% |
107,300
+64,600
| +151% | +$4.09M |
|
1814
CALL
QuantumScape Corp
QS
$3.37B
| $7.12M | ﹤0.01% |
942,300
+281,300
| +43% | +$2.11M |
|
1815
Nutrien
NTR
$37.9B
| $7.12M | ﹤0.01% |
113,109
-5,500
| -5% | -$385K |
|
|
GAP
1816
CALL
The Gap Inc
GAP
$7.88B
| $7.12M | ﹤0.01% |
381,000
-18,000
| -5% | -$415K |
|
1817
CALL
Insmed
INSM
$27.6B
| $7.11M | ﹤0.01% |
66,700
+43,900
| +193% | +$5.32M |
|
1818
PUT
Logitech
LOGI
$14.6B
| $7.11M | ﹤0.01% |
75,600
+32,200
| +74% | +$3.34M |
|
1819
PUT
Quest Diagnostics
DGX
$26.2B
| $7.1M | ﹤0.01% |
33,500
+16,900
| +102% | +$3.32M |
|
1820
Casey's General Stores
CASY
$28B
| $7.1M | ﹤0.01% |
8,928
+8,054
| +922% | +$6.49M |
|
1821
Riot Platforms
RIOT
$8.18B
| $7.09M | ﹤0.01% |
259,086
-440,694
| -63% | -$9.93M |
|
1822
PUT
Annaly Capital Management
NLY
$17.2B
| $7.07M | ﹤0.01% |
316,000
+100
| +0% | +$2.21K |
|
1823
MongoDB
MDB
$29.7B
| $7.04M | ﹤0.01% |
20,961
+10,407
| +99% | +$3.12M |
|
1824
PUT
Tyson Foods
TSN
$18.1B
| $7.02M | ﹤0.01% |
122,700
+40,000
| +48% | +$2.5M |
|
1825
PUT
PBF Energy
PBF
$8.81B
| $7.02M | ﹤0.01% |
154,200
-75,000
| -33% | -$3.12M |
|
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.