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 Russell 2000 ETF
IWM
|
+$302M |
| 2 |
Invesco QQQ Trust
QQQ
|
+$170M |
| 3 |
Broadcom
AVGO
|
+$164M |
| 4 |
Tesla
TSLA
|
+$158M |
| 5 |
Palantir
PLTR
|
+$109M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
iShares Bitcoin Trust
IBIT
|
+$167M |
| 2 |
Applovin
APP
|
+$126M |
| 3 |
JD.com
JD
|
+$103M |
| 4 |
Amazon
AMZN
|
+$97.8M |
| 5 |
Vanguard S&P 500 ETF
VOO
|
+$90.4M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 0.56% |
| 2 | Consumer Discretionary | 0.3% |
| 3 | Communication Services | 0.16% |
| 4 | Financials | 0.13% |
| 5 | Industrials | 0.11% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
3776
RingCentral
RNG
$5.28B
| $316K | ﹤0.01% |
10,933
-631
| -5% | -$18K |
|
3777
PUT
Alphatec Holdings
ATEC
$1.44B
| $316K | ﹤0.01% |
+15,000
| New | +$278K |
|
3778
Microvast
MVST
$302M
| $315K | ﹤0.01% |
112,458
-34,453
| -23% | -$144K |
|
3779
ADT
ADT
$5.58B
| $315K | ﹤0.01% |
38,999
-4,150
| -10% | -$34.5K |
|
3780
ProShares Short Real Estate
REK
$11.8M
| $314K | ﹤0.01% |
18,257
+2,200
| +14% | +$37.5K |
|
3781
PUT
AXT Inc
AXTI
$5.8B
| $314K | ﹤0.01% |
+19,200
| New | +$185K |
|
3782
PUT
PagerDuty
PD
$902M
| $313K | ﹤0.01% |
23,900
-36,500
| -60% | -$532K |
|
|
AIRO
3783
PUT
AIRO Group Holdings
AIRO
$268M
| $312K | ﹤0.01% |
+38,200
| New | +$493K |
|
3784
Innovator Equity Defined Protection ETF - 2 Yr to July 2027
TJUL
$116M
| $312K | ﹤0.01% |
+10,548
| New | +$311K |
|
3785
EVgo
EVGO
$229M
| $310K | ﹤0.01% |
106,581
+12,472
| +13% | +$45.3K |
|
|
TGB
3786
PUT
Trekor Metals
TGB
$3.05B
| $310K | ﹤0.01% |
54,700
-2,200
| -4% | -$10.3K |
|
3787
Robert Half
RHI
$4.37B
| $310K | ﹤0.01% |
11,396
-8,418
| -42% | -$240K |
|
3788
PUT
FLEX LNG
FLNG
$1.67B
| $309K | ﹤0.01% |
12,400
-10,600
| -46% | -$270K |
|
3789
CALL
GoodRx Holdings
GDRX
$1.26B
| $308K | ﹤0.01% |
+113,800
| New | +$374K |
|
|
ARIS
3790
Aris Mining
ARIS
$3.59B
| $308K | ﹤0.01% |
+18,981
| New | +$233K |
|
3791
ProShares UltraShort Industrials
SIJ
$5.56M
| $306K | ﹤0.01% |
+13,526
| New | +$315K |
|
3792
CALL
LSB Industries
LXU
$693M
| $304K | ﹤0.01% |
+35,800
| New | +$316K |
|
3793
CALL
Hyliion Holdings
HYLN
$690M
| $304K | ﹤0.01% |
+165,100
| New | +$333K |
|
|
CMBT
3794
PUT
CMB.TECH NV
CMBT
$4.73B
| $303K | ﹤0.01% |
+31,400
| New | +$305K |
|
|
ALMU
3795
CALL
Aeluma Inc
ALMU
$335M
| $302K | ﹤0.01% |
+17,600
| New | +$278K |
|
|
CIM
3796
PUT
Chimera Investment
CIM
$1B
| $302K | ﹤0.01% |
24,300
-14,400
| -37% | -$183K |
|
3797
CALL
MidCap Financial Investment
MFIC
$804M
| $302K | ﹤0.01% |
26,400
+4,200
| +19% | +$49.8K |
|
3798
Direxion Daily FTSE China Bear 3X ETF
YANG
$89.2M
| $302K | ﹤0.01% |
+11,997
| New | +$281K |
|
3799
CALL
Ultragenyx Pharmaceutical
RARE
$2.55B
| $301K | ﹤0.01% |
+13,100
| New | +$431K |
|
3800
PUT
Gaotu Techedu
GOTU
$436M
| $301K | ﹤0.01% |
129,800
-8,000
| -6% | -$21.7K |
|
Similar funds
IMC Chicago's Q4 2025 Portfolio in Review
As of Q4 2025, IMC Chicago held 4,538 positions worth $275B, up 0.14% from $275B the previous quarter. Its ten largest holdings account for 36% of the portfolio.
IMC Chicago's Q4 2025 filing shows 985 new, 1,665 increased, 1,358 reduced and 525 closed positions. Its largest new stake was Palantir: 601,853 shares worth $107M. The largest sale was iShares Bitcoin Trust, an estimated $167M.
By sector, the portfolio is most concentrated in Technology at 0.56% of assets, up from 0.33% a quarter earlier, followed by Consumer Discretionary and Communication Services.
- IMC Chicago's largest Q4 2025 buy was Palantir: 601,853 shares worth $107M.
- IMC Chicago added most to iShares Russell 2000 ETF in Q4 2025, an estimated $302M increase.
- IMC Chicago's biggest Q4 2025 reduction was iShares Bitcoin Trust, cutting an estimated $167M.
- IMC Chicago fully exited Amazon in Q4 2025, selling an estimated $97.8M.
- IMC Chicago's ten largest holdings make up 36% of its $275B portfolio in Q4 2025.
- IMC Chicago opened 985 new positions and closed 525 in Q4 2025.
- IMC Chicago's portfolio value rose 0.14% quarter-over-quarter to $275B.
Based on IMC Chicago's 13F filing for Q4 2025, filed 29 Jan 2026.