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 | |
|---|---|---|---|---|---|---|
2851
CALL
Halozyme
HALO
$11.4B
| $821K | ﹤0.01% |
+11,200
| New | +$744K |
|
2852
Shoals Technologies Group
SHLS
$1.37B
| $820K | ﹤0.01% |
110,674
+47,745
| +76% | +$294K |
|
2853
TMC The Metals Company
TMC
$1.91B
| $820K | ﹤0.01% |
128,680
-6,999
| -5% | -$42K |
|
2854
PUT
Braze
BRZE
$3.36B
| $819K | ﹤0.01% |
28,800
+10,800
| +60% | +$306K |
|
2855
CALL
Marqeta
MQ
$1.71B
| $817K | ﹤0.01% |
38,700
-3,050
| -7% | -$72.3K |
|
2856
PUT
Carter's
CRI
$1.44B
| $816K | ﹤0.01% |
28,900
+6,100
| +27% | +$175K |
|
2857
CALL
Voya Financial
VOYA
$9.16B
| $815K | ﹤0.01% |
+10,900
| New | +$803K |
|
|
SNV
2858
CALL
DELISTED
Synovus
SNV
| $815K | ﹤0.01% |
16,600
-100
| -0.6% | -$5.12K |
|
2859
PUT
H&R Block
HRB
$6.76B
| $814K | ﹤0.01% |
16,100
-5,100
| -24% | -$270K |
|
|
OSG
2860
Octave Specialty Group
OSG
$212M
| $812K | ﹤0.01% |
97,422
-43,604
| -31% | -$368K |
|
2861
CALL
Ryan Specialty Holdings
RYAN
$11B
| $812K | ﹤0.01% |
+14,400
| New | +$853K |
|
2862
PUT
Melco Resorts & Entertainment
MLCO
$2.14B
| $811K | ﹤0.01% |
88,400
-34,800
| -28% | -$318K |
|
2863
Denison Mines
DNN
$2.95B
| $810K | ﹤0.01% |
294,645
+36,655
| +14% | +$81.1K |
|
2864
PUT
Blackstone Secured Lending
BXSL
$5.83B
| $808K | ﹤0.01% |
31,000
+15,200
| +96% | +$457K |
|
2865
CALL
Yelp
YELP
$1.32B
| $808K | ﹤0.01% |
25,900
+4,700
| +22% | +$154K |
|
2866
CALL
Trinity Industries
TRN
$2.34B
| $808K | ﹤0.01% |
+28,800
| New | +$794K |
|
2867
CALL
Open Text
OTEX
$6.02B
| $804K | ﹤0.01% |
21,500
+10,300
| +92% | +$330K |
|
2868
Kohl's
KSS
$2.22B
| $802K | ﹤0.01% |
+52,196
| New | +$696K |
|
2869
Green Plains
GPRE
$1.09B
| $801K | ﹤0.01% |
91,093
+34,248
| +60% | +$300K |
|
2870
CALL
loanDepot
LDI
$320M
| $800K | ﹤0.01% |
+260,600
| New | +$602K |
|
2871
PUT
Sociedad Química y Minera de Chile
SQM
$20.6B
| $799K | ﹤0.01% |
+18,600
| New | +$775K |
|
2872
Schwab US Large-Cap Growth ETF
SCHG
$63.2B
| $799K | ﹤0.01% |
+25,049
| New | +$763K |
|
2873
PUT
Sensata Technologies
ST
$6.61B
| $797K | ﹤0.01% |
26,100
-2,100
| -7% | -$66.3K |
|
2874
PUT
Vodafone
VOD
$37.5B
| $797K | ﹤0.01% |
68,700
+24,000
| +54% | +$274K |
|
2875
PENN Entertainment
PENN
$2.53B
| $796K | ﹤0.01% |
41,306
+1,733
| +4% | +$32.5K |
|
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.