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 | |
|---|---|---|---|---|---|---|
1201
PUT
Rocket Companies
RKT
$39.9B
| $16.3M | ﹤0.01% |
1,037,100
+290,500
| +39% | +$4.19M |
|
1202
PUT
Novartis
NVS
$304B
| $16.3M | ﹤0.01% |
104,200
+49,700
| +91% | +$7.45M |
|
1203
CALL
VF Corp
VFC
$5.29B
| $16.3M | ﹤0.01% |
978,500
+318,400
| +48% | +$5.69M |
|
1204
Cloudflare
NET
$99.9B
| $16.3M | ﹤0.01% |
66,518
-15,577
| -19% | -$3.41M |
|
1205
CALL
Illumina
ILMN
$33.1B
| $16.3M | ﹤0.01% |
92,700
+4,300
| +5% | +$630K |
|
1206
PUT
Enterprise Products Partners
EPD
$83.9B
| $16.3M | ﹤0.01% |
443,400
+151,900
| +52% | +$5.73M |
|
1207
Mastercard
MA
$509B
| $16.3M | ﹤0.01% |
+31,732
| New | +$15.8M |
|
1208
PUT
Amer Sports
AS
$17.2B
| $16.3M | ﹤0.01% |
481,200
+451,700
| +1,531% | +$15.8M |
|
1209
American Tower
AMT
$82B
| $16.3M | ﹤0.01% |
99,492
+70,516
| +243% | +$12.7M |
|
|
TE
1210
CALL
T1 Energy
TE
$1.34B
| $16.3M | ﹤0.01% |
1,715,300
+1,068,000
| +165% | +$7.59M |
|
1211
CALL
Sanmina
SANM
$10.5B
| $16.2M | ﹤0.01% |
64,200
+22,900
| +55% | +$5.02M |
|
1212
PUT
Zeta Global
ZETA
$7.88B
| $16.2M | ﹤0.01% |
824,600
+519,500
| +170% | +$9.64M |
|
1213
CALL
Vanguard Morningstar Growth ETF
VUG
$228B
| $16.2M | ﹤0.01% |
188,200
+4,600
| +3% | +$387K |
|
1214
CALL
Cirrus Logic
CRUS
$5.66B
| $16.2M | ﹤0.01% |
109,100
+75,800
| +228% | +$12.4M |
|
1215
PUT
Lemonade
LMND
$4.12B
| $16.2M | ﹤0.01% |
249,000
-26,500
| -10% | -$1.55M |
|
1216
PUT
Crocs
CROX
$5.61B
| $16.2M | ﹤0.01% |
134,100
-42,600
| -24% | -$4.66M |
|
1217
S&P Global
SPGI
$131B
| $16.1M | ﹤0.01% |
39,585
+29,545
| +294% | +$12.5M |
|
1218
PUT
State Street SPDR Portfolio Europe ETF
SPEU
$737M
| $16.1M | ﹤0.01% |
234,500
+19,300
| +9% | +$1.05M |
|
1219
Cipher Digital
CIFR
$7.25B
| $16.1M | ﹤0.01% |
656,153
+102,413
| +18% | +$2.16M |
|
1220
The Mosaic Company
MOS
$8.19B
| $16.1M | ﹤0.01% |
758,223
+240,935
| +47% | +$5.57M |
|
1221
CALL
argenx
ARGX
$64.8B
| $16.1M | ﹤0.01% |
17,300
-4,700
| -21% | -$3.88M |
|
1222
PUT
Southern Company
SO
$101B
| $16M | ﹤0.01% |
167,300
+68,400
| +69% | +$6.44M |
|
1223
CALL
PG&E
PCG
$30.8B
| $16M | ﹤0.01% |
951,900
+684,100
| +255% | +$11.5M |
|
1224
CALL
CSX Corp
CSX
$91.6B
| $16M | ﹤0.01% |
335,800
-21,800
| -6% | -$984K |
|
1225
CALL
Brinker International
EAT
$9.75B
| $15.9M | ﹤0.01% |
94,700
+11,400
| +14% | +$1.69M |
|
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.