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 | |
|---|---|---|---|---|---|---|---|
4376
CALL
nCino
NCNO
$2.45B
| $634K | ﹤0.01% |
38,800
-9,800
| -20% | -$161K |
2025 Q3
3 quarters
|
|
4377
Tradr TSLA Bear Daily ETF
TSLQ
$67.7M
| $634K | ﹤0.01% |
38,138
-804
| -2% | -$16.5K |
2025 Q4
2 quarters
|
|
4378
CALL
AmpliTech
AMPG
$77.7M
| $634K | ﹤0.01% |
+91,100
| New | +$381K |
2026 Q2
0 quarters
|
|
4379
CALL
NewMarket
NEU
$8.01B
| $633K | ﹤0.01% |
800
| – | – |
2026 Q1
1 quarter
|
|
4380
iShares 0-3 Month Treasury Bond ETF
SGOV
$116B
| $633K | ﹤0.01% |
+6,287
| New | +$632K |
2026 Q2
0 quarters
|
|
4381
Victoria's Secret
VSXY
$7.24B
| $633K | ﹤0.01% |
7,579
-2,968
| -28% | -$178K |
2025 Q1
5 quarters
|
|
4382
PUT
Krystal Biotech
KRYS
$9.22B
| $632K | ﹤0.01% |
1,700
-3,100
| -65% | -$926K |
2026 Q1
1 quarter
|
|
4383
Direxion Daily Energy Bull 2X ETF
ERX
$293M
| $632K | ﹤0.01% |
8,288
+3,304
| +66% | +$293K |
2026 Q1
1 quarter
|
|
|
TGB
4384
PUT
Trekor Metals
TGB
$2.73B
| $631K | ﹤0.01% |
91,700
+52,900
| +136% | +$378K |
2025 Q3
3 quarters
|
|
4385
Limbach Holdings
LMB
$567M
| $631K | ﹤0.01% |
+8,192
| New | +$681K |
2026 Q2
0 quarters
|
|
4386
CALL
Norfolk Southern
NSC
$74.1B
| $629K | ﹤0.01% |
2,000
-3,500
| -64% | -$1.08M |
2023 Q4
10 quarters
|
|
4387
Direxion Daily CSI China Internet Index Bull 2X ETF
CWEB
$157M
| $629K | ﹤0.01% |
33,264
+3,447
| +12% | +$86K |
2026 Q1
1 quarter
|
|
4388
CALL
United Bankshares
UBSI
$6.63B
| $628K | ﹤0.01% |
13,700
-900
| -6% | -$39.4K |
2025 Q4
2 quarters
|
|
4389
NXG NextGen Infrastructure Income Fund
NXG
$326M
| $627K | ﹤0.01% |
+9,697
| New | +$553K |
2026 Q2
0 quarters
|
|
4390
PUT
DXC Technology
DXC
$2.57B
| $627K | ﹤0.01% |
70,800
+40,900
| +137% | +$424K |
2025 Q2
4 quarters
|
|
4391
PUT
YieldMax BABA Option Income Strategy ETF
BABO
$12M
| $626K | ﹤0.01% |
60,900
+40,800
| +203% | +$395K |
2025 Q4
2 quarters
|
|
4392
Direxion NASDAQ-100 Equal Weighted Index ETF
QQQE
$1.42B
| $624K | ﹤0.01% |
5,118
-4,589
| -47% | -$518K |
2026 Q1
1 quarter
|
|
4393
PUT
Hess Midstream
HESM
$3.93B
| $624K | ﹤0.01% |
16,600
-9,000
| -35% | -$346K |
2025 Q3
3 quarters
|
|
4394
PUT
Corsair Gaming
CRSR
$1.49B
| $623K | ﹤0.01% |
64,400
+23,200
| +56% | +$180K |
2026 Q1
1 quarter
|
|
4395
PUT
Tutor Perini Cor
TPC
$4.04B
| $622K | ﹤0.01% |
7,500
+1,200
| +19% | +$96.6K |
2025 Q4
2 quarters
|
|
4396
PUT
Happen Inc
HAPN
$1.63B
| $622K | ﹤0.01% |
30,000
+9,800
| +49% | +$167K |
2024 Q2
8 quarters
|
|
4397
PUT
Rhythm Pharmaceuticals
RYTM
$6.15B
| $622K | ﹤0.01% |
+5,600
| New | +$506K |
2026 Q2
0 quarters
|
|
|
ORLA
4398
DELISTED
Orla Mining
ORLA
| $622K | ﹤0.01% |
63,505
+50,186
| +377% | +$668K |
2026 Q1
1 quarter
|
|
4399
CALL
Scholar Rock
SRRK
$5.05B
| $622K | ﹤0.01% |
11,300
-2,900
| -20% | -$140K |
2025 Q4
2 quarters
|
|
4400
CALL
Global X MSCI Norway ETF
NORW
$93.7M
| $621K | ﹤0.01% |
6,800
-12,000
| -64% | -$451K |
2025 Q1
5 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.