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 |
Alphabet (Google) Class C
GOOG
|
+$54.1M |
| 2 |
Apple
AAPL
|
+$28.6M |
| 3 |
Meta Platforms (Facebook)
META
|
+$16.5M |
| 4 |
IBM
IBM
|
+$13.4M |
| 5 |
Baidu
BIDU
|
+$10.3M |
Top Sells
| 1 |
SPDR S&P 500 ETF Trust
SPY
|
+$9.89M |
| 2 |
McDonald's
MCD
|
+$8.52M |
| 3 |
Ralph Lauren
RL
|
+$5.22M |
| 4 |
Intel
INTC
|
+$4.74M |
| 5 |
WBA
Walgreens Boots Alliance
WBA
|
+$4.67M |
Sector Composition
| 1 | Communication Services | 22.01% |
| 2 | Technology | 15.83% |
| 3 | Healthcare | 11.95% |
| 4 | Consumer Discretionary | 9.73% |
| 5 | Financials | 7.98% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
|
TFCFA
526
DELISTED
Twenty-First Century Fox, Inc. Class A
TFCFA
| $168K | 0.01% |
+5,191
| New | +$168K |
|
|
AMED
527
DELISTED
Amedisys
AMED
| $167K | 0.01% |
4,216
+3,185
| +309% | +$126K |
|
|
ZNH
528
DELISTED
China Southern Airlines Company Limited
ZNH
| $166K | 0.01% |
+2,856
| New | +$166K |
|
529
Criteo
CRTO
$1.22B
| $165K | 0.01% |
+3,480
| New | +$165K |
|
530
Vanguard Consumer Staples ETF
VDC
$7.64B
| $165K | 0.01% |
+1,329
| New | +$165K |
|
|
NMBL
531
DELISTED
Nimble Storage, Inc.
NMBL
| $165K | 0.01% |
+5,890
| New | +$165K |
|
532
C.H. Robinson
CHRW
$14.9B
| $164K | 0.01% |
+2,639
| New | +$164K |
|
533
O'Reilly Automotive
ORLY
$90B
| $164K | 0.01% |
10,890
-26,175
| -71% | -$394K |
|
534
DigitalBridge
DBRG
$2.04B
| $163K | 0.01% |
2,209
+1,874
| +559% | +$138K |
|
|
CSOD
535
DELISTED
Cornerstone OnDemand, Inc.
CSOD
| $163K | 0.01% |
4,687
+3,063
| +189% | +$107K |
|
|
CRR
536
DELISTED
Carbo Ceramics Inc.
CRR
| $163K | 0.01% |
3,933
+2,236
| +132% | +$92.7K |
|
|
CSC
537
DELISTED
Computer Sciences
CSC
| $163K | 0.01% |
5,895
+3,486
| +145% | +$96.4K |
|
538
Applied Materials
AMAT
$130B
| $162K | 0.01% |
+8,467
| New | +$162K |
|
539
Commault Systems
CVLT
$8.14B
| $162K | 0.01% |
+3,828
| New | +$162K |
|
540
Direxion Daily Healthcare Bull 3X Shares
CURE
$170M
| $161K | 0.01% |
+4,112
| New | +$161K |
|
|
TGI
541
DELISTED
Triumph Group
TGI
| $161K | 0.01% |
2,450
+671
| +38% | +$44.1K |
|
|
ADT
542
DELISTED
ADT CORP
ADT
| $161K | 0.01% |
4,822
-4,814
| -50% | -$161K |
|
543
Royal Bank of Canada
RY
$204B
| $160K | 0.01% |
2,628
-10,850
| -81% | -$661K |
|
544
Newmont
NEM
$83.1B
| $158K | 0.01% |
6,784
-7,909
| -54% | -$184K |
|
545
Restaurant Brands International
QSR
$20.3B
| $158K | 0.01% |
4,138
-7,483
| -64% | -$286K |
|
546
Travere Therapeutics
TVTX
$1.9B
| $158K | 0.01% |
+4,796
| New | +$158K |
|
|
VSI
547
DELISTED
Vitamin Shoppe Inc.
VSI
| $158K | 0.01% |
4,252
+3,232
| +317% | +$120K |
|
548
Bank of Montreal
BMO
$91B
| $156K | 0.01% |
2,642
-2,996
| -53% | -$177K |
|
549
TransDigm Group
TDG
$73.5B
| $156K | 0.01% |
695
-349
| -33% | -$78.3K |
|
|
CS
550
DELISTED
Credit Suisse Group
CS
| $156K | 0.01% |
5,685
-28,789
| -84% | -$790K |
|