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 | |
|---|---|---|---|---|---|---|
|
HAPN
3076
PUT
Happen Inc
HAPN
$2.24B
| $886K | ﹤0.01% |
46,800
+11,500
| +33% | +$203K |
|
3077
PUT
H&R Block
HRB
$5.82B
| $885K | ﹤0.01% |
20,300
+4,200
| +26% | +$196K |
|
3078
PUT
Perrigo
PRGO
$1.76B
| $884K | ﹤0.01% |
63,500
+36,400
| +134% | +$607K |
|
3079
Sharplink Inc
SBET
$1.3B
| $882K | ﹤0.01% |
+98,695
| New | +$1.21M |
|
3080
PUT
Flowserve
FLS
$10.1B
| $881K | ﹤0.01% |
+12,700
| New | +$816K |
|
|
PR
3081
PUT
Permian Resources
PR
$17.8B
| $881K | ﹤0.01% |
62,800
+6,600
| +12% | +$88.6K |
|
3082
Planet Labs
PL
$8.22B
| $881K | ﹤0.01% |
44,676
-66,985
| -60% | -$960K |
|
3083
CALL
Liberty Global Class A
LBTYA
$3.46B
| $880K | ﹤0.01% |
79,000
+39,100
| +98% | +$433K |
|
3084
AAR Corp
AIR
$5.74B
| $879K | ﹤0.01% |
10,612
-9,187
| -46% | -$760K |
|
3085
CALL
BellRing Brands
BRBR
$1.32B
| $877K | ﹤0.01% |
32,800
-18,100
| -36% | -$562K |
|
3086
Fox Class A
FOXA
$26.6B
| $877K | ﹤0.01% |
+11,998
| New | +$784K |
|
|
TGB
3087
CALL
Trekor Metals
TGB
$3.21B
| $874K | ﹤0.01% |
154,500
-2,300
| -1% | -$10.8K |
|
3088
CALL
Xometry
XMTR
$5.19B
| $874K | ﹤0.01% |
14,700
-8,100
| -36% | -$457K |
|
3089
NextDecade
NEXT
$1.86B
| $873K | ﹤0.01% |
165,703
-29,894
| -15% | -$178K |
|
3090
PUT
Option Care Health
OPCH
$3.67B
| $873K | ﹤0.01% |
+27,400
| New | +$804K |
|
3091
CALL
Bloomin' Brands
BLMN
$943M
| $872K | ﹤0.01% |
141,400
+61,100
| +76% | +$426K |
|
3092
FT Vest US Equity Buffer & Premium Income ETF September
XISE
$35.7M
| $872K | ﹤0.01% |
+28,696
| New | +$867K |
|
3093
PUT
Commercial Metals
CMC
$8.09B
| $872K | ﹤0.01% |
+12,600
| New | +$789K |
|
3094
PUT
Biohaven
BHVN
$2.19B
| $870K | ﹤0.01% |
77,100
+40,800
| +112% | +$505K |
|
|
PENG
3095
CALL
Penguin Solutions Inc
PENG
$2.82B
| $870K | ﹤0.01% |
+44,500
| New | +$953K |
|
|
3096
CALL
Option Care Health
OPCH
$3.67B
| $870K | ﹤0.01% |
27,300
+3,700
| +16% | +$109K |
|
|
TRTX
3097
CALL
TPG RE Finance Trust
TRTX
$607M
| $870K | ﹤0.01% |
101,000
-12,300
| -11% | -$109K |
|
|
TEN
3098
Tsakos Energy Navigation Ltd
TEN
$1.15B
| $870K | ﹤0.01% |
38,787
+17,905
| +86% | +$419K |
|
3099
CALL
Smith & Wesson
SWBI
$636M
| $867K | ﹤0.01% |
87,800
-61,400
| -41% | -$593K |
|
3100
Crescent Energy
CRGY
$4.03B
| $866K | ﹤0.01% |
103,217
+60,477
| +141% | +$531K |
|
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.