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 |
Apple
AAPL
|
+$32.9M |
| 2 |
Gilead Sciences
GILD
|
+$30.1M |
| 3 |
Booking.com
BKNG
|
+$29M |
| 4 |
Amazon
AMZN
|
+$25.6M |
| 5 |
Baidu
BIDU
|
+$16.2M |
Top Sells
Sector Composition
| 1 | Consumer Discretionary | 23.68% |
| 2 | Technology | 19.11% |
| 3 | Healthcare | 14.31% |
| 4 | Energy | 9.3% |
| 5 | Communication Services | 8.24% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
751
Alliance Resource Partners
ARLP
$2.92B
| $35K | ﹤0.01% |
+805
| New | +$35K |
|
752
Kosmos Energy
KOS
$832M
| $35K | ﹤0.01% |
+4,182
| New | +$35K |
|
753
Rambus
RMBS
$8.3B
| $35K | ﹤0.01% |
+3,174
| New | +$35K |
|
754
VEON
VEON
$3.56B
| $35K | ﹤0.01% |
+338
| New | +$35K |
|
|
UTIW
755
DELISTED
UTI WORLDWIDE INC
UTIW
| $35K | ﹤0.01% |
+2,870
| New | +$35K |
|
|
MDCO
756
DELISTED
Medicines Co
MDCO
| $34K | ﹤0.01% |
+1,242
| New | +$34K |
|
|
NSH
757
DELISTED
NuStar GP Holdings LLC
NSH
| $34K | ﹤0.01% |
+1,002
| New | +$34K |
|
758
Adobe
ADBE
$149B
| $34K | ﹤0.01% |
+463
| New | +$34K |
|
759
Anika Therapeutics
ANIK
$121M
| $34K | ﹤0.01% |
+825
| New | +$34K |
|
760
TechnipFMC
FTI
$16.8B
| $34K | ﹤0.01% |
+986
| New | +$34K |
|
761
Worthington Enterprises
WOR
$3.22B
| $34K | ﹤0.01% |
+1,856
| New | +$34K |
|
762
Western Union
WU
$2.73B
| $34K | ﹤0.01% |
+1,892
| New | +$34K |
|
763
Zumiez
ZUMZ
$356M
| $34K | ﹤0.01% |
+869
| New | +$34K |
|
|
SCLN
764
DELISTED
Sciclone Pharmaceuticals Inc
SCLN
| $34K | ﹤0.01% |
+3,894
| New | +$34K |
|
765
Commercial Metals
CMC
$6.53B
| $33K | ﹤0.01% |
+2,038
| New | +$33K |
|
766
Genasys
GNSS
$94.8M
| $33K | ﹤0.01% |
+12,100
| New | +$33K |
|
767
Hilltop Holdings
HTH
$2.19B
| $33K | ﹤0.01% |
+1,645
| New | +$33K |
|
768
Pediatrix Medical
MD
$1.44B
| $33K | ﹤0.01% |
+492
| New | +$33K |
|
769
OGE Energy
OGE
$8.85B
| $33K | ﹤0.01% |
+937
| New | +$33K |
|
770
Pembina Pipeline
PBA
$22.5B
| $33K | ﹤0.01% |
+911
| New | +$33K |
|
771
ProShares Ultra Technology
ROM
$811M
| $33K | ﹤0.01% |
+6,880
| New | +$33K |
|
772
T Rowe Price
TROW
$23.4B
| $33K | ﹤0.01% |
+382
| New | +$33K |
|
773
Credicorp
BAP
$21B
| $32K | ﹤0.01% |
+197
| New | +$32K |
|
774
Itron
ITRI
$5.41B
| $32K | ﹤0.01% |
+750
| New | +$32K |
|
775
PROS Holdings
PRO
$727M
| $32K | ﹤0.01% |
+1,172
| New | +$32K |
|