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 |
SNDK
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 | |
|---|---|---|---|---|---|---|
|
DOCU
926
PUT
DocuSign
DOCU
$12.6B
| $26.2M | 0.01% |
590,800
+250,100
| +73% | +$11.7M |
|
927
CALL
Emcor
EME
$32.7B
| $26.2M | 0.01% |
31,600
+2,000
| +7% | +$1.69M |
|
928
PUT
Centene
CNC
$33.6B
| $26.2M | 0.01% |
407,600
+120,600
| +42% | +$6.45M |
|
929
CALL
Toast
TOST
$19.6B
| $26.1M | 0.01% |
939,800
+187,600
| +25% | +$4.89M |
|
930
Constellation Energy
CEG
$101B
| $26M | 0.01% |
104,773
+90,677
| +643% | +$25.5M |
|
|
PPLC
931
CALL
DELISTED
PortfolioPlus S&P 500 ETF
PPLC
| $26M | 0.01% |
518,800
+200,600
| +63% | +$10M |
|
|
PENG
932
CALL
Penguin Solutions Inc
PENG
$2.49B
| $25.9M | 0.01% |
340,100
+293,200
| +625% | +$13.3M |
|
933
CALL
Sprouts Farmers Market
SFM
$7.38B
| $25.8M | 0.01% |
305,600
+133,700
| +78% | +$10.8M |
|
|
TYNS
934
PUT
DELISTED
Direxion Daily 7-10 Year Treasury Bear 1X Shares
TYNS
| $25.8M | 0.01% |
180,400
-7,500
| -4% | -$1.07M |
|
|
KFYP
935
PUT
DELISTED
KraneShares CICC China Leaders 100 Index ETF
KFYP
| $25.8M | 0.01% |
1,055,800
-391,100
| -27% | -$9.57M |
|
936
PUT
Molina Healthcare
MOH
$10.6B
| $25.8M | 0.01% |
112,900
+18,100
| +19% | +$3.28M |
|
937
PUT
LyondellBasell Industries
LYB
$20.9B
| $25.8M | 0.01% |
490,000
-22,500
| -4% | -$1.55M |
|
938
CALL
Wingstop
WING
$3B
| $25.8M | 0.01% |
148,600
+27,000
| +22% | +$4.25M |
|
939
PUT
eBay
EBAY
$47.1B
| $25.7M | 0.01% |
229,800
-50,900
| -18% | -$5.43M |
|
940
Strategy Inc
MSTR
$57.5B
| $25.6M | 0.01% |
+294,903
| New | +$42.8M |
|
941
PUT
Hecla Mining
HL
$14.2B
| $25.6M | 0.01% |
1,659,100
+94,600
| +6% | +$1.66M |
|
942
PUT
Digital Realty Trust
DLR
$69.7B
| $25.6M | 0.01% |
142,400
+54,800
| +63% | +$10.5M |
|
943
CALL
Intercontinental Exchange
ICE
$92.4B
| $25.5M | 0.01% |
207,300
+104,800
| +102% | +$15.7M |
|
944
PUT
Royal Gold
RGLD
$22.4B
| $25.5M | 0.01% |
127,500
+20,900
| +20% | +$4.86M |
|
945
CALL
O'Reilly Automotive
ORLY
$70.7B
| $25.4M | 0.01% |
275,500
+5,100
| +2% | +$465K |
|
946
PUT
Biogen
BIIB
$33.2B
| $25.3M | 0.01% |
117,300
-45,000
| -28% | -$8.61M |
|
947
Cisco
CSCO
$428B
| $25.3M | 0.01% |
+215,562
| New | +$22.5M |
|
|
948
CALL
Royal Gold
RGLD
$22.4B
| $24.9M | 0.01% |
124,900
-8,000
| -6% | -$1.86M |
|
949
PUT
HubSpot
HUBS
$12.7B
| $24.9M | 0.01% |
136,500
+80,600
| +144% | +$16.9M |
|
950
CALL
Stanley Black & Decker
SWK
$14.6B
| $24.9M | 0.01% |
264,300
-111,600
| -30% | -$8.74M |
|
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.