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 | |
|---|---|---|---|---|---|---|
1401
CALL
BridgeBio Pharma
BBIO
$14.6B
| $12.1M | ﹤0.01% |
162,200
+125,800
| +346% | +$8.81M |
|
1402
CALL
Citizens Financial Group
CFG
$29.9B
| $12.1M | ﹤0.01% |
172,000
-1,900
| -1% | -$123K |
|
1403
CALL
MSCI
MSCI
$41.3B
| $12M | ﹤0.01% |
21,500
+8,200
| +62% | +$4.78M |
|
1404
Oscar Health
OSCR
$9.81B
| $12M | ﹤0.01% |
422,040
-428,404
| -50% | -$9.22M |
|
1405
CALL
JB Hunt Transport Services
JBHT
$25.3B
| $12M | ﹤0.01% |
41,500
+16,300
| +65% | +$4.19M |
|
|
VSXY
1406
CALL
Victoria's Secret
VSXY
$5.91B
| $12M | ﹤0.01% |
143,800
+12,700
| +10% | +$761K |
|
1407
PUT
iPath Series B S&P 500 VIX Short-Term Futures ETN
VXX
$127M
| $12M | ﹤0.01% |
543,000
-227,500
| -30% | -$6.18M |
|
|
MRSH
1408
CALL
Marsh
MRSH
$89.2B
| $12M | ﹤0.01% |
71,900
+43,800
| +156% | +$7.32M |
|
1409
Lockheed Martin
LMT
$121B
| $12M | ﹤0.01% |
+23,503
| New | +$12.7M |
|
1410
CALL
APi Group
APG
$17.2B
| $12M | ﹤0.01% |
282,400
+240,700
| +577% | +$10.5M |
|
1411
CALL
Macy's
M
$6.04B
| $12M | ﹤0.01% |
507,600
+110,200
| +28% | +$2.31M |
|
1412
PUT
Pool Corp
POOL
$6.7B
| $11.9M | ﹤0.01% |
55,600
+10,000
| +22% | +$2M |
|
1413
PUT
Trip.com Group
TCOM
$25.8B
| $11.9M | ﹤0.01% |
299,700
-21,900
| -7% | -$1.09M |
|
1414
PUT
Toyota
TM
$234B
| $11.9M | ﹤0.01% |
70,800
+30,700
| +77% | +$5.82M |
|
1415
CALL
Leidos
LDOS
$16.7B
| $11.9M | ﹤0.01% |
115,700
+79,500
| +220% | +$10.6M |
|
1416
CALL
Dover
DOV
$25.8B
| $11.9M | ﹤0.01% |
53,100
+8,900
| +20% | +$1.94M |
|
1417
CALL
F5
FFIV
$22.2B
| $11.9M | ﹤0.01% |
28,500
+9,300
| +48% | +$3.3M |
|
1418
CALL
Symbotic
SYM
$5.55B
| $11.8M | ﹤0.01% |
263,600
-15,200
| -5% | -$775K |
|
1419
CALL
CDW
CDW
$19.2B
| $11.8M | ﹤0.01% |
84,100
+53,400
| +174% | +$6.71M |
|
1420
Zoom
ZM
$29.8B
| $11.8M | ﹤0.01% |
136,968
+35,903
| +36% | +$3.39M |
|
1421
PUT
Cintas
CTAS
$80.1B
| $11.8M | ﹤0.01% |
69,300
-19,100
| -22% | -$3.3M |
|
1422
CALL
Peabody Energy
BTU
$3.53B
| $11.8M | ﹤0.01% |
508,700
-104,500
| -17% | -$2.78M |
|
1423
PUT
Viavi Solutions
VIAV
$8.55B
| $11.8M | ﹤0.01% |
246,300
+160,800
| +188% | +$7.7M |
|
1424
Alcoa
AA
$13.2B
| $11.8M | ﹤0.01% |
225,431
+181,116
| +409% | +$12.1M |
|
1425
CALL
PENN Entertainment
PENN
$2.3B
| $11.8M | ﹤0.01% |
550,100
-34,500
| -6% | -$618K |
|
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.