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 |
Invesco QQQ Trust
QQQ
|
+$203M |
| 2 |
JD.com
JD
|
+$105M |
| 3 |
Boeing
BA
|
+$105M |
| 4 |
Applovin
APP
|
+$93.6M |
| 5 |
Netflix
NFLX
|
+$81.3M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Apple
AAPL
|
+$167M |
| 2 |
State Street Financial Select Sector SPDR ETF
XLF
|
+$146M |
| 3 |
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$135M |
| 4 |
Pinduoduo
PDD
|
+$128M |
| 5 |
Palantir
PLTR
|
+$108M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Consumer Discretionary | 0.39% |
| 2 | Technology | 0.33% |
| 3 | Communication Services | 0.22% |
| 4 | Industrials | 0.16% |
| 5 | Financials | 0.14% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
151
PUT
Bloom Energy
BE
$62B
| $215M | 0.08% |
2,536,700
+2,094,300
| +473% | +$97.3M |
|
152
CALL
State Street SPDR NYSE Technology ETF
XNTK
$2.22B
| $212M | 0.08% |
2,643,800
+104,500
| +4% | +$25.7M |
|
153
CALL
ExxonMobil
XOM
$657B
| $212M | 0.08% |
1,879,100
+314,200
| +20% | +$34.9M |
|
|
OKLO
154
CALL
Oklo
OKLO
$8.28B
| $212M | 0.08% |
1,895,000
+538,800
| +40% | +$42.2M |
|
155
Tesla
TSLA
$1.31T
| $211M | 0.08% |
475,113
-10,629
| -2% | -$3.69M |
|
156
PUT
ARK Innovation ETF
ARKK
$6.37B
| $210M | 0.08% |
2,429,100
+671,900
| +38% | +$51.4M |
|
157
PUT
Roblox
RBLX
$26.5B
| $208M | 0.08% |
1,500,900
+490,500
| +49% | +$61M |
|
158
PUT
Applied Materials
AMAT
$415B
| $204M | 0.07% |
997,800
+279,300
| +39% | +$50.7M |
|
159
CALL
State Street Materials Select Sector SPDR ETF
XLB
$8.71B
| $202M | 0.07% |
4,671,200
-1,684,200
| -27% | -$76.1M |
|
160
CALL
Vanguard S&P 500 ETF
VOO
$1.03T
| $198M | 0.07% |
462,000
+96,200
| +26% | +$56.7M |
|
161
CALL
Qualcomm
QCOM
$170B
| $197M | 0.07% |
1,184,600
-74,200
| -6% | -$11.8M |
|
162
CALL
Lockheed Martin
LMT
$139B
| $197M | 0.07% |
394,400
-144,800
| -27% | -$65.7M |
|
163
CALL
McDonald's
MCD
$194B
| $197M | 0.07% |
647,600
+42,000
| +7% | +$12.8M |
|
164
CALL
Walt Disney
DIS
$178B
| $196M | 0.07% |
1,711,100
-88,100
| -5% | -$10.4M |
|
165
PUT
SoFi Technologies
SOFI
$23.4B
| $196M | 0.07% |
7,414,200
+3,478,200
| +88% | +$82.5M |
|
|
166
CALL
Roblox
RBLX
$26.5B
| $196M | 0.07% |
1,412,300
-122,800
| -8% | -$15.3M |
|
167
CALL
Bank of America
BAC
$447B
| $192M | 0.07% |
3,726,700
-336,600
| -8% | -$16.4M |
|
|
168
PUT
Lockheed Martin
LMT
$139B
| $190M | 0.07% |
380,900
+41,600
| +12% | +$18.9M |
|
169
PUT
Walmart Inc
WMT
$897B
| $186M | 0.07% |
1,807,200
+465,000
| +35% | +$46.3M |
|
|
170
Applovin
APP
$113B
| $186M | 0.07% |
259,198
+202,957
| +361% | +$93.6M |
|
171
PUT
Deere & Co
DE
$164B
| $182M | 0.07% |
398,100
+58,000
| +17% | +$28.6M |
|
|
172
CALL
SoFi Technologies
SOFI
$23.4B
| $178M | 0.06% |
6,728,000
+1,733,100
| +35% | +$41.1M |
|
173
PUT
Dell
DELL
$296B
| $176M | 0.06% |
1,243,900
+193,600
| +18% | +$25.1M |
|
|
174
PUT
Qualcomm
QCOM
$170B
| $176M | 0.06% |
1,055,700
-54,500
| -5% | -$8.64M |
|
175
CALL
AutoZone
AZO
$50.1B
| $175M | 0.06% |
40,900
+20,500
| +100% | +$82.2M |
|
Similar funds
IMC Chicago's Q3 2025 Portfolio in Review
As of Q3 2025, IMC Chicago held 4,045 positions worth $275B, up 22% from $225B the previous quarter. Its ten largest holdings account for 38% of the portfolio.
IMC Chicago deployed $23.7B of net new capital in Q3 2025, opening 783 new positions and adding to 1,843 existing holdings. Its largest new stake was Netflix: 666,120 shares worth $79.9M.
By sector, the portfolio is most concentrated in Consumer Discretionary at 0.39% of assets, up from 0.25% a quarter earlier, followed by Technology and Communication Services.
On the sell side, the largest reduction was State Street SPDR Dow Jones Industrial Average ETF Trust, an estimated $135M trimmed.
- IMC Chicago's largest Q3 2025 buy was Netflix: 666,120 shares worth $79.9M.
- IMC Chicago added most to Invesco QQQ Trust in Q3 2025, an estimated $203M increase.
- IMC Chicago's biggest Q3 2025 reduction was State Street SPDR Dow Jones Industrial Average ETF Trust, cutting an estimated $135M.
- IMC Chicago fully exited Apple in Q3 2025, selling an estimated $167M.
- IMC Chicago's ten largest holdings make up 38% of its $275B portfolio in Q3 2025.
- IMC Chicago opened 783 new positions and closed 492 in Q3 2025.
- IMC Chicago's portfolio value rose 22% quarter-over-quarter to $275B.
Based on IMC Chicago's 13F filing for Q3 2025, filed 4 Nov 2025.