Simplex Trading Portfolio holdings
Simplex Trading, founded in 2004 and headquartered in Chicago, Illinois, is a technology-driven proprietary trading firm specializing in market-making and liquidity provision, primarily in U.S. equity options and futures options. Leveraging advanced proprietary software and data-driven analysis, the firm optimizes trading strategies and develops innovative solutions to capitalize on financial market opportunities, maintaining a competitive edge through automation and a collaborative team of technologists and traders. With a workforce exceeding 300 and led by CEO Erik Swanson since 2014, Simplex operates with a low-ego, high-intelligence culture, focusing on minimal bureaucracy and rapid execution, while also making strategic venture capital investments in fintech startups. Recognized as a top workplace in Chicago by Built In’s 2025 awards, Simplex continues to evolve, blending cutting-edge technology with a commitment to market efficiency and growth.
Top Buys
| 1 |
iShares Russell 2000 ETF
IWM
|
+$27.5M |
| 2 |
SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$16.3M |
| 3 |
Walt Disney
DIS
|
+$13.9M |
| 4 |
iShares MSCI Emerging Markets ETF
EEM
|
+$10.4M |
| 5 |
Gilead Sciences
GILD
|
+$10.4M |
Top Sells
| 1 |
Alphabet (Google) Class C
GOOG
|
+$95.3M |
| 2 |
Apple
AAPL
|
+$21.1M |
| 3 |
Meta Platforms (Facebook)
META
|
+$20M |
| 4 |
IBM
IBM
|
+$13.4M |
| 5 |
Baidu
BIDU
|
+$12.1M |
Sector Composition
| 1 | Healthcare | 13.63% |
| 2 | Communication Services | 9.81% |
| 3 | Consumer Discretionary | 9.7% |
| 4 | Technology | 9.67% |
| 5 | Financials | 9.48% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
451
iShares MSCI India ETF
INDA
$9.4B
| $209K | 0.02% |
+7,322
| New | +$209K |
|
452
Live Nation Entertainment
LYV
$39.8B
| $209K | 0.02% |
+8,727
| New | +$209K |
|
|
SAVE
453
DELISTED
Spirit Airlines, Inc.
SAVE
| $209K | 0.02% |
4,426
+2,105
| +91% | +$99.4K |
|
|
EXPR
454
DELISTED
Express, Inc.
EXPR
| $209K | 0.02% |
586
+208
| +55% | +$74.2K |
|
|
USG
455
DELISTED
Usg
USG
| $208K | 0.02% |
+7,844
| New | +$208K |
|
456
Alaska Air
ALK
$7.19B
| $208K | 0.02% |
2,620
-6,022
| -70% | -$478K |
|
457
ProShares UltraPro Short Dow 30
SDOW
$175M
| $208K | 0.02% |
+36
| New | +$208K |
|
|
PF
458
DELISTED
Pinnacle Foods, Inc.
PF
| $207K | 0.02% |
4,952
-11,456
| -70% | -$479K |
|
|
SAGE
459
DELISTED
Sage Therapeutics
SAGE
| $206K | 0.02% |
4,891
+2,285
| +88% | +$96.2K |
|
|
LFC
460
DELISTED
China Life Insurance Company Ltd.
LFC
| $205K | 0.02% |
11,812
-2,058
| -15% | -$35.7K |
|
461
Invesco CurrencyShares Australian Dollar Trust
FXA
$78.6M
| $204K | 0.02% |
2,910
-1,114
| -28% | -$78.1K |
|
462
Hexcel
HXL
$4.97B
| $204K | 0.02% |
+4,557
| New | +$204K |
|
463
Corpay
CPAY
$21.5B
| $204K | 0.02% |
1,488
-1,483
| -50% | -$203K |
|
|
ZOES
464
DELISTED
Zoe's Kitchen, Inc.
ZOES
| $204K | 0.02% |
5,176
+4,355
| +530% | +$172K |
|
|
ZSPH
465
DELISTED
ZS PHARMA INC COMS TK (DE)
ZSPH
| $204K | 0.02% |
3,110
+1,633
| +111% | +$107K |
|
|
CNW
466
DELISTED
CON-WAY INC.
CNW
| $204K | 0.02% |
+4,304
| New | +$204K |
|
|
DHC
467
Diversified Healthcare Trust
DHC
$1.03B
| $203K | 0.01% |
+12,694
| New | +$203K |
|
468
ICICI Bank
IBN
$113B
| $203K | 0.01% |
26,684
+21,988
| +468% | +$167K |
|
469
Standex International
SXI
$2.44B
| $203K | 0.01% |
2,700
+1,875
| +227% | +$141K |
|
470
Omega Healthcare
OHI
$12.7B
| $202K | 0.01% |
+5,756
| New | +$202K |
|
471
Northern Trust
NTRS
$24.4B
| $200K | 0.01% |
+2,946
| New | +$200K |
|
|
IMOS
472
ChipMOS TECHNOLOGIES
IMOS
$634M
| $199K | 0.01% |
11,004
+3,524
| +47% | +$63.7K |
|
473
Littelfuse
LFUS
$6.57B
| $199K | 0.01% |
+2,186
| New | +$199K |
|
|
AERI
474
DELISTED
Aerie Pharmaceuticals, Inc.
AERI
| $199K | 0.01% |
11,240
-59,184
| -84% | -$1.05M |
|
|
EQM
475
DELISTED
EQM Midstream Partners, LP
EQM
| $199K | 0.01% |
+3,015
| New | +$199K |
|