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 | |
|---|---|---|---|---|---|---|
|
XYZ
276
CALL
Block Inc
XYZ
$47.5B
| $109M | 0.04% |
1,670,300
-199,700
| -11% | -$13.8M |
|
277
CALL
Cloudflare
NET
$107B
| $108M | 0.04% |
545,600
-71,800
| -12% | -$15.2M |
|
278
PUT
Starbucks
SBUX
$120B
| $107M | 0.04% |
1,276,100
+171,200
| +15% | +$14.4M |
|
|
279
Palantir
PLTR
$413B
| $107M | 0.04% |
+601,853
| New | +$109M |
|
280
CALL
Merck
MRK
$318B
| $106M | 0.04% |
1,009,000
+119,700
| +13% | +$11.2M |
|
281
PUT
Lumentum
LITE
$69.3B
| $106M | 0.04% |
287,900
+170,300
| +145% | +$43.7M |
|
282
PUT
EQT Corp
EQT
$32.3B
| $105M | 0.04% |
1,964,600
+1,569,300
| +397% | +$88.2M |
|
283
CALL
Celestica
CLS
$36.5B
| $105M | 0.04% |
354,500
+5,600
| +2% | +$1.69M |
|
284
PUT
State Street Health Care Select Sector SPDR ETF
XLV
$42.7B
| $105M | 0.04% |
675,900
+299,700
| +80% | +$44.9M |
|
285
CALL
State Street SPDR Portfolio Short Term Treasury ETF
SPTS
$6.11B
| $104M | 0.04% |
835,100
+475,800
| +132% | +$13.9M |
|
286
PUT
Dollar General
DG
$27.9B
| $104M | 0.04% |
784,500
+423,300
| +117% | +$47.2M |
|
287
PUT
Eaton
ETN
$174B
| $104M | 0.04% |
326,300
+85,800
| +36% | +$30.4M |
|
288
PUT
Cameco
CCJ
$42.4B
| $103M | 0.04% |
1,129,800
+722,500
| +177% | +$65.1M |
|
289
CALL
Coherent
COHR
$74.2B
| $103M | 0.04% |
556,500
+308,200
| +124% | +$46.1M |
|
290
CALL
FedEx
FDX
$75.4B
| $102M | 0.04% |
354,600
-37,600
| -10% | -$9.87M |
|
291
CALL
Capital One
COF
$134B
| $102M | 0.04% |
421,400
+31,700
| +8% | +$7.06M |
|
292
PUT
Airbnb
ABNB
$107B
| $102M | 0.04% |
750,000
+102,000
| +16% | +$12.7M |
|
|
SCHW
293
PUT
Charles Schwab
SCHW
$187B
| $99.5M | 0.04% |
995,400
-122,900
| -11% | -$11.7M |
|
294
PUT
Constellation Brands
STZ
$23.2B
| $98.9M | 0.04% |
717,100
-228,500
| -24% | -$31.4M |
|
295
CALL
Vistra
VST
$47.4B
| $98.1M | 0.04% |
608,100
-29,900
| -5% | -$5.45M |
|
296
CALL
ProShares Ultra Bloomberg Natural Gas
BOIL
$347M
| $97.7M | 0.04% |
1,743,150
+747,200
| +75% | +$45.7M |
|
297
CALL
Seagate
STX
$184B
| $97.7M | 0.04% |
354,900
-83,800
| -19% | -$21.7M |
|
298
CALL
RH
RH
$3.71B
| $96.5M | 0.04% |
538,800
+133,000
| +33% | +$22.7M |
|
299
PUT
State Street Financial Select Sector SPDR ETF
XLF
$58.2B
| $96.3M | 0.04% |
1,758,900
-104,400
| -6% | -$5.56M |
|
300
CALL
ConocoPhillips
COP
$141B
| $94.6M | 0.03% |
1,010,600
+240,200
| +31% | +$21.7M |
|
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.