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 | |
|---|---|---|---|---|---|---|
151
PUT
Bank of America
BAC
$442B
| $224M | 0.08% |
4,069,800
-144,300
| -3% | -$7.63M |
|
152
PUT
Super Micro Computer
SMCI
$20.1B
| $219M | 0.08% |
+7,489,800
| New | +$308M |
|
153
CALL
State Street Materials Select Sector SPDR ETF
XLB
$8.66B
| $216M | 0.08% |
4,632,300
-38,900
| -0.8% | -$1.72M |
|
154
CALL
Nike
NKE
$61.9B
| $214M | 0.08% |
3,353,400
+1,034,500
| +45% | +$67.4M |
|
155
PUT
Marvell Technology
MRVL
$196B
| $209M | 0.08% |
2,457,500
-2,007,800
| -45% | -$176M |
|
156
PUT
SoFi Technologies
SOFI
$23.7B
| $208M | 0.08% |
7,943,600
+529,400
| +7% | +$14.8M |
|
157
PUT
IBM
IBM
$224B
| $207M | 0.08% |
697,400
-114,000
| -14% | -$34.1M |
|
158
PUT
iShares Morningstar Value ETF
ILCV
$1.35B
| $206M | 0.07% |
2,558,000
+886,400
| +53% | +$82M |
|
159
CALL
Wells Fargo
WFC
$264B
| $206M | 0.07% |
2,213,100
+258,000
| +13% | +$22.4M |
|
160
CALL
Dell
DELL
$293B
| $206M | 0.07% |
1,636,100
-107,900
| -6% | -$15.2M |
|
161
CALL
ExxonMobil
XOM
$634B
| $206M | 0.07% |
1,709,100
-170,000
| -9% | -$19.7M |
|
162
PUT
Uber
UBER
$153B
| $204M | 0.07% |
2,502,700
-16,100
| -0.6% | -$1.45M |
|
|
163
CALL
Uber
UBER
$153B
| $204M | 0.07% |
2,498,600
-423,600
| -14% | -$38.1M |
|
164
PUT
American Express
AXP
$230B
| $204M | 0.07% |
550,800
+103,700
| +23% | +$37.1M |
|
165
PUT
Celestica
CLS
$36.5B
| $203M | 0.07% |
686,300
+333,800
| +95% | +$101M |
|
166
PUT
Baidu
BIDU
$37.2B
| $202M | 0.07% |
1,542,600
-552,300
| -26% | -$68.6M |
|
167
CALL
Synopsys
SNPS
$79.7B
| $199M | 0.07% |
423,000
-133,500
| -24% | -$59.3M |
|
168
PUT
Qualcomm
QCOM
$176B
| $195M | 0.07% |
1,141,900
+86,200
| +8% | +$14.8M |
|
169
PUT
Lockheed Martin
LMT
$136B
| $195M | 0.07% |
402,800
+21,900
| +6% | +$10.5M |
|
|
170
CALL
Marvell Technology
MRVL
$196B
| $194M | 0.07% |
2,280,300
-335,200
| -13% | -$29.3M |
|
171
CALL
McDonald's
MCD
$195B
| $194M | 0.07% |
633,300
-14,300
| -2% | -$4.38M |
|
172
PUT
Walmart Inc
WMT
$890B
| $193M | 0.07% |
1,730,000
-77,200
| -4% | -$8.29M |
|
|
173
CALL
Lockheed Martin
LMT
$136B
| $192M | 0.07% |
396,100
+1,700
| +0.4% | +$814K |
|
|
CRWV
174
PUT
CoreWeave
CRWV
$49.5B
| $188M | 0.07% |
+2,627,600
| New | +$266M |
|
175
PUT
Vertiv
VRT
$105B
| $188M | 0.07% |
1,159,200
-828,000
| -42% | -$144M |
|
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.