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 | |
|---|---|---|---|---|---|---|
2451
Equinor
EQNR
$100B
| $3.6M | ﹤0.01% |
114,494
+84,112
| +277% | +$3.14M |
|
2452
PUT
Guidewire Software
GWRE
$13.4B
| $3.59M | ﹤0.01% |
29,200
+19,600
| +204% | +$2.61M |
|
2453
CALL
Lazard
LAZ
$4.36B
| $3.59M | ﹤0.01% |
85,600
+66,800
| +355% | +$3.06M |
|
|
HAPN
2454
CALL
Happen Inc
HAPN
$2.04B
| $3.59M | ﹤0.01% |
173,000
+10,000
| +6% | +$170K |
|
|
BSOL
2455
Bitwise Solana Staking ETF
BSOL
$824M
| $3.58M | ﹤0.01% |
357,985
-259,077
| -42% | -$2.82M |
|
2456
PUT
Madison Square Garden
MSGE
$3.66B
| $3.58M | ﹤0.01% |
+44,300
| New | +$3.02M |
|
2457
CALL
Sensata Technologies
ST
$6.26B
| $3.58M | ﹤0.01% |
75,000
+45,300
| +153% | +$2.05M |
|
2458
PUT
Idexx Laboratories
IDXX
$42B
| $3.58M | ﹤0.01% |
6,800
-5,200
| -43% | -$2.92M |
|
2459
PUT
AGNC Investment
AGNC
$12.7B
| $3.58M | ﹤0.01% |
328,400
+49,200
| +18% | +$518K |
|
2460
PUT
Under Armour
UAA
$2.24B
| $3.58M | ﹤0.01% |
559,900
-40,100
| -7% | -$238K |
|
2461
PUT
Mettler-Toledo International
MTD
$27.2B
| $3.58M | ﹤0.01% |
2,800
+1,700
| +155% | +$2.05M |
|
2462
CALL
Healthpeak Properties
DOC
$14.3B
| $3.58M | ﹤0.01% |
167,100
-240,500
| -59% | -$4.49M |
|
2463
CALL
Procure Space ETF
UFO
$557M
| $3.57M | ﹤0.01% |
70,500
+43,100
| +157% | +$2.32M |
|
2464
PACCAR
PCAR
$65.6B
| $3.57M | ﹤0.01% |
+29,717
| New | +$3.51M |
|
2465
CALL
Fortive
FTV
$17.3B
| $3.57M | ﹤0.01% |
58,400
+44,500
| +320% | +$2.67M |
|
2466
Life Time Group Holdings
LTH
$9.62B
| $3.57M | ﹤0.01% |
+87,314
| New | +$2.77M |
|
2467
PUT
Insulet
PODD
$10.2B
| $3.56M | ﹤0.01% |
23,400
+15,900
| +212% | +$2.65M |
|
2468
State Street Consumer Staples Select Sector SPDR ETF
XLP
$14.5B
| $3.56M | ﹤0.01% |
42,877
-126,135
| -75% | -$10.5M |
|
2469
PUT
Scorpio Tankers
STNG
$4.04B
| $3.56M | ﹤0.01% |
51,400
-47,000
| -48% | -$3.68M |
|
2470
CALL
Brookfield Asset Management
BAM
$80.9B
| $3.56M | ﹤0.01% |
79,300
+31,400
| +66% | +$1.48M |
|
2471
CALL
Capri Holdings
CPRI
$1.54B
| $3.55M | ﹤0.01% |
191,400
-135,700
| -41% | -$2.6M |
|
2472
CALL
Constellium
CSTM
$3.66B
| $3.55M | ﹤0.01% |
111,400
+45,500
| +69% | +$1.47M |
|
2473
CALL
Timken Company
TKR
$8.5B
| $3.55M | ﹤0.01% |
24,400
+10,400
| +74% | +$1.25M |
|
|
SKYT
2474
CALL
DELISTED
SkyWater Technology
SKYT
| $3.54M | ﹤0.01% |
101,800
-95,400
| -48% | -$3.26M |
|
|
PPTA
2475
PUT
Perpetua Resources
PPTA
$3.14B
| $3.54M | ﹤0.01% |
170,400
+48,600
| +40% | +$1.32M |
|
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.