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 |
iShares Bitcoin Trust
IBIT
|
+$232M |
| 2 |
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$168M |
| 3 |
Apple
AAPL
|
+$149M |
| 4 |
State Street Financial Select Sector SPDR ETF
XLF
|
+$136M |
| 5 |
UnitedHealth
UNH
|
+$110M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Invesco QQQ Trust
QQQ
|
+$153M |
| 2 |
iShares Russell 2000 ETF
IWM
|
+$127M |
| 3 |
Advanced Micro Devices
AMD
|
+$97.1M |
| 4 |
TSMC
TSM
|
+$65.3M |
| 5 |
SPYM
State Street SPDR Portfolio S&P 500 ETF
SPYM
|
+$57.6M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 0.32% |
| 2 | Consumer Discretionary | 0.25% |
| 3 | Healthcare | 0.13% |
| 4 | Communication Services | 0.1% |
| 5 | Financials | 0.1% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
2376
Aurora
AUR
$13.4B
| $1.17M | ﹤0.01% |
223,507
+63,833
| +40% | +$400K |
|
2377
PUT
Trimble
TRMB
$13.4B
| $1.17M | ﹤0.01% |
+15,400
| New | +$1.03M |
|
2378
PUT
Northern Oil and Gas
NOG
$2.61B
| $1.17M | ﹤0.01% |
41,200
+16,900
| +70% | +$455K |
|
2379
PUT
John Wiley & Sons Class A
WLY
$2.63B
| $1.16M | ﹤0.01% |
+26,100
| New | +$1.1M |
|
2380
PUT
H&R Block
HRB
$6.76B
| $1.16M | ﹤0.01% |
21,200
+5,400
| +34% | +$312K |
|
2381
PUT
Gold Fields
GFI
$35.4B
| $1.16M | ﹤0.01% |
49,100
+11,000
| +29% | +$253K |
|
2382
Pinterest
PINS
$13.2B
| $1.16M | ﹤0.01% |
+32,367
| New | +$982K |
|
2383
CALL
Harrow
HROW
$1.46B
| $1.16M | ﹤0.01% |
38,000
-8,500
| -18% | -$228K |
|
|
CHYM
2384
PUT
Chime Financial
CHYM
$12.2B
| $1.16M | ﹤0.01% |
+33,600
| New | +$1.11M |
|
2385
Invesco Bloomberg Pricing Power ETF
POWA
$184M
| $1.16M | ﹤0.01% |
13,370
-20,281
| -60% | -$1.68M |
|
2386
CALL
Solventum
SOLV
$14.7B
| $1.15M | ﹤0.01% |
15,200
-27,300
| -64% | -$1.93M |
|
|
GRAL
2387
PUT
GRAIL Inc
GRAL
$3.05B
| $1.15M | ﹤0.01% |
22,400
+8,600
| +62% | +$311K |
|
2388
C3.ai
AI
$1.58B
| $1.15M | ﹤0.01% |
46,870
+8,630
| +23% | +$197K |
|
2389
CALL
Aecom
ACM
$8.19B
| $1.15M | ﹤0.01% |
10,200
-2,500
| -20% | -$260K |
|
|
ABK
2390
CALL
DELISTED
Ambac Financial Group
ABK
| $1.15M | ﹤0.01% |
162,000
+117,100
| +261% | +$831K |
|
2391
PUT
Jackson Financial
JXN
$9.1B
| $1.15M | ﹤0.01% |
12,900
+2,500
| +24% | +$203K |
|
2392
CALL
Sanmina
SANM
$11.1B
| $1.14M | ﹤0.01% |
+11,700
| New | +$967K |
|
2393
PUT
BioMarin Pharmaceuticals
BMRN
$13.3B
| $1.14M | ﹤0.01% |
+20,800
| New | +$1.22M |
|
|
SPR
2394
PUT
DELISTED
Spirit AeroSystems
SPR
| $1.14M | ﹤0.01% |
29,900
| – | – |
|
2395
PUT
Terex
TEX
$7.57B
| $1.14M | ﹤0.01% |
24,400
+10,400
| +74% | +$435K |
|
2396
CALL
Arch Capital
ACGL
$33.5B
| $1.14M | ﹤0.01% |
12,500
-5,400
| -30% | -$498K |
|
2397
PUT
Upwork
UPWK
$1.08B
| $1.14M | ﹤0.01% |
84,600
+8,200
| +11% | +$118K |
|
2398
PUT
Pitney Bowes
PBI
$2.28B
| $1.13M | ﹤0.01% |
103,400
-41,900
| -29% | -$394K |
|
|
EXK
2399
Endeavour Silver
EXK
$3.05B
| $1.13M | ﹤0.01% |
228,746
+10,426
| +5% | +$41.1K |
|
2400
CRISPR Therapeutics
CRSP
$5.22B
| $1.12M | ﹤0.01% |
23,080
-39,134
| -63% | -$1.51M |
|
Similar funds
IMC Chicago's Q2 2025 Portfolio in Review
As of Q2 2025, IMC Chicago held 3,685 positions worth $225B, up 27% from $177B the previous quarter. Its ten largest holdings account for 42% of the portfolio.
IMC Chicago deployed $13.1B of net new capital in Q2 2025, opening 615 new positions and adding to 1,602 existing holdings. Its largest new stake was iShares Bitcoin Trust: 4,132,010 shares worth $253M.
By sector, the portfolio is most concentrated in Technology at 0.32% of assets, up from 0.28% a quarter earlier, followed by Consumer Discretionary and Healthcare.
On the sell side, the largest reduction was Invesco QQQ Trust, an estimated $153M trimmed.
- IMC Chicago's largest Q2 2025 buy was iShares Bitcoin Trust: 4,132,010 shares worth $253M.
- IMC Chicago added most to Sprott Physical Gold in Q2 2025, an estimated $77.8M increase.
- IMC Chicago's biggest Q2 2025 reduction was Invesco QQQ Trust, cutting an estimated $153M.
- IMC Chicago fully exited Advanced Micro Devices in Q2 2025, selling an estimated $97.1M.
- IMC Chicago's ten largest holdings make up 42% of its $225B portfolio in Q2 2025.
- IMC Chicago opened 615 new positions and closed 423 in Q2 2025.
- IMC Chicago's portfolio value rose 27% quarter-over-quarter to $225B.
Based on IMC Chicago's 13F filing for Q2 2025, filed 22 Jul 2025.