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 | |
|---|---|---|---|---|---|---|
|
JOY
276
DELISTED
Joy Global Inc
JOY
| $239K | 0.03% |
+5,140
| New | +$239K |
|
|
SRCI
277
DELISTED
SRC Energy Inc
SRCI
| $237K | 0.03% |
+18,871
| New | +$237K |
|
278
Neurocrine Biosciences
NBIX
$14.3B
| $236K | 0.03% |
+10,573
| New | +$236K |
|
279
Raymond James Financial
RJF
$33B
| $235K | 0.03% |
+6,152
| New | +$235K |
|
280
Delek US
DK
$1.88B
| $234K | 0.03% |
+8,574
| New | +$234K |
|
281
Home Depot
HD
$417B
| $233K | 0.03% |
+2,221
| New | +$233K |
|
282
O'Reilly Automotive
ORLY
$89B
| $233K | 0.03% |
+18,180
| New | +$233K |
|
283
Entergy
ETR
$39.2B
| $232K | 0.03% |
+5,310
| New | +$232K |
|
|
PRXL
284
DELISTED
Parexel International Corp
PRXL
| $232K | 0.03% |
+4,167
| New | +$232K |
|
285
Hain Celestial
HAIN
$164M
| $231K | 0.03% |
+3,970
| New | +$231K |
|
|
PTRY
286
DELISTED
PANTRY INC (THE)
PTRY
| $230K | 0.03% |
+6,214
| New | +$230K |
|
287
NetEase
NTES
$85B
| $228K | 0.03% |
+11,510
| New | +$228K |
|
288
Cenovus Energy
CVE
$28.7B
| $227K | 0.03% |
+10,999
| New | +$227K |
|
289
Ubiquiti
UI
$34.9B
| $227K | 0.03% |
+7,651
| New | +$227K |
|
|
VNET
290
VNET Group
VNET
$2.13B
| $226K | 0.03% |
+14,587
| New | +$226K |
|
|
BID
291
DELISTED
Sotheby's
BID
| $224K | 0.03% |
+5,187
| New | +$224K |
|
292
Aptiv
APTV
$17.5B
| $222K | 0.03% |
+3,059
| New | +$222K |
|
293
Archrock
AROC
$4.44B
| $222K | 0.03% |
+6,813
| New | +$222K |
|
294
Bath & Body Works
BBWI
$6.06B
| $220K | 0.03% |
+3,149
| New | +$220K |
|
295
Regional Management Corp
RM
$422M
| $220K | 0.03% |
+13,908
| New | +$220K |
|
|
LVLT
296
DELISTED
Level 3 Communications Inc
LVLT
| $220K | 0.03% |
+4,451
| New | +$220K |
|
|
AEC
297
DELISTED
ASSOCIATED ESTATES REALTY CORP
AEC
| $216K | 0.03% |
+9,287
| New | +$216K |
|
298
WEC Energy
WEC
$34.7B
| $214K | 0.03% |
+4,056
| New | +$214K |
|
|
ESI
299
DELISTED
ITT EDUCATIONAL SERVICES INC
ESI
| $214K | 0.03% |
+22,264
| New | +$214K |
|
300
Canadian Pacific Kansas City
CP
$70.3B
| $213K | 0.03% |
+5,515
| New | +$213K |
|