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 |
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$568M |
| 2 |
Amazon
AMZN
|
+$341M |
| 3 |
iShares MSCI South Korea ETF
EWY
|
+$278M |
| 4 |
Apple
AAPL
|
+$239M |
| 5 |
TSMC
TSM
|
+$215M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
State Street SPDR S&P 500 ETF Trust
SPY
|
+$316M |
| 2 |
Tesla
TSLA
|
+$253M |
| 3 |
Micron Technology
MU
|
+$178M |
| 4 |
iShares Bitcoin Trust
IBIT
|
+$176M |
| 5 |
Sandisk
SNDK
|
+$159M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Miscellaneous | 97.94% |
| 2 | Technology | 0.92% |
| 3 | Consumer Discretionary | 0.31% |
| 4 | Financials | 0.17% |
| 5 | Communication Services | 0.16% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | Held Since | |
|---|---|---|---|---|---|---|---|
4426
PUT
Smith & Wesson
SWBI
$634M
| $606K | ﹤0.01% |
40,300
-31,400
| -44% | -$472K |
2024 Q2
8 quarters
|
|
4427
State Street SPDR S&P Transportation ETF
XTN
$289M
| $605K | ﹤0.01% |
+5,232
| New | +$564K |
2026 Q2
0 quarters
|
|
4428
PUT
NNN REIT
NNN
$7.97B
| $605K | ﹤0.01% |
13,000
+1,000
| +8% | +$44.7K |
2025 Q4
2 quarters
|
|
4429
Eastman Chemical
EMN
$7.13B
| $604K | ﹤0.01% |
+9,025
| New | +$660K |
2026 Q2
0 quarters
|
|
4430
PIMCO Income Strategy Fund II
PFN
$616M
| $604K | ﹤0.01% |
+84,734
| New | +$590K |
2026 Q2
0 quarters
|
|
4431
PUT
ProShares UltraShort Semiconductors
SSG
$45M
| $604K | ﹤0.01% |
6,500
+900
| +16% | +$14.7K |
2025 Q4
2 quarters
|
|
4432
CALL
California Resources
CRC
$4.83B
| $603K | ﹤0.01% |
11,400
-2,100
| -16% | -$129K |
2025 Q3
3 quarters
|
|
4433
Energy Recovery
ERII
$339M
| $603K | ﹤0.01% |
66,819
+54,286
| +433% | +$516K |
2026 Q1
1 quarter
|
|
4434
CALL
LegalZoom.com
LZ
$1.04B
| $603K | ﹤0.01% |
98,300
-14,900
| -13% | -$91.4K |
2025 Q2
4 quarters
|
|
4435
CALL
RenaissanceRe
RNR
$14.6B
| $602K | ﹤0.01% |
1,900
+700
| +58% | +$210K |
2026 Q1
1 quarter
|
|
4436
PUT
Qfin Holdings
QFIN
$689M
| $601K | ﹤0.01% |
38,000
-10,400
| -21% | -$146K |
2025 Q3
3 quarters
|
|
4437
CALL
WidePoint Corp
WYY
$62.1M
| $600K | ﹤0.01% |
+34,300
| New | +$321K |
2026 Q2
0 quarters
|
|
4438
CALL
ProShares Ultra Solana ETF
SLON
$26M
| $600K | ﹤0.01% |
+33,600
| New | +$783K |
2026 Q2
0 quarters
|
|
|
AWTM
4439
PUT
DELISTED
AWTM Ultra-Short Duration Enhanced Income ETF
AWTM
| $600K | ﹤0.01% |
21,700
+6,300
| +41% | +$174K |
2025 Q4
2 quarters
|
|
4440
VanEck Agribusiness ETF
MOO
$1.14B
| $598K | ﹤0.01% |
7,552
+2,353
| +45% | +$191K |
2026 Q1
1 quarter
|
|
4441
PUT
Hawaiian Electric Industries
HE
$1.48B
| $598K | ﹤0.01% |
44,200
-17,400
| -28% | -$248K |
2025 Q2
4 quarters
|
|
4442
PUT
Xenon Pharmaceuticals
XENE
$3.24B
| $598K | ﹤0.01% |
9,900
-88,100
| -90% | -$4.89M |
2025 Q3
3 quarters
|
|
4443
Leverage Shares 2X Long TER Daily ETF
TERG
$5.16M
| $597K | ﹤0.01% |
+7,518
| New | +$411K |
2026 Q2
0 quarters
|
|
4444
X-Energy Inc
XE
$2.98B
| $596K | ﹤0.01% |
+32,442
| New | +$840K |
2026 Q2
0 quarters
|
|
4445
CALL
Freshworks
FRSH
$3.59B
| $595K | ﹤0.01% |
58,800
-27,600
| -32% | -$246K |
2024 Q1
9 quarters
|
|
4446
PUT
10x Genomics
TXG
$9.1B
| $594K | ﹤0.01% |
15,500
+5,500
| +55% | +$144K |
2025 Q4
2 quarters
|
|
4447
PUT
Sixth Street Specialty
TSLX
$1.62B
| $594K | ﹤0.01% |
34,600
+19,800
| +134% | +$353K |
2026 Q1
1 quarter
|
|
4448
PUT
Blue Bird Corp
BLBD
$1.95B
| $592K | ﹤0.01% |
7,500
-3,000
| -29% | -$204K |
2025 Q4
2 quarters
|
|
4449
PUT
Littelfuse
LFUS
$9.7B
| $592K | ﹤0.01% |
+1,300
| New | +$563K |
2026 Q2
0 quarters
|
|
4450
PUT
Beazer Homes USA
BZH
$892M
| $592K | ﹤0.01% |
21,100
-18,900
| -47% | -$447K |
2024 Q1
9 quarters
|
|
Similar funds
IMC Chicago's Q2 2026 Portfolio in Review
As of Q2 2026, IMC Chicago held 6,955 positions worth $419B, up 50% from $278B the previous quarter. Its ten largest holdings account for 34% of the portfolio.
IMC Chicago's Q2 2026 filing shows 1,282 new, 3,251 increased, 1,751 reduced and 653 closed positions. Its largest new stake was Microsoft: 303,034 shares worth $113M. The largest sale was State Street SPDR S&P 500 ETF Trust, an estimated $316M.
By sector, the portfolio is most concentrated in Miscellaneous at 98% of assets, down from 98% a quarter earlier, followed by Technology and Consumer Discretionary.
- IMC Chicago's largest Q2 2026 buy was Microsoft: 303,034 shares worth $113M.
- IMC Chicago added most to State Street SPDR Dow Jones Industrial Average ETF Trust in Q2 2026, an estimated $568M increase.
- IMC Chicago's biggest Q2 2026 reduction was Tesla, cutting an estimated $253M.
- IMC Chicago fully exited State Street SPDR S&P 500 ETF Trust in Q2 2026, selling an estimated $316M.
- IMC Chicago's ten largest holdings make up 34% of its $419B portfolio in Q2 2026.
- IMC Chicago opened 1,282 new positions and closed 653 in Q2 2026.
- IMC Chicago's portfolio value rose 50% quarter-over-quarter to $419B.
Based on IMC Chicago's 13F filing for Q2 2026, filed 6 Aug 2026.