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 |
Broadcom
AVGO
|
+$38.5M |
| 2 |
SPDR Gold Trust
GLD
|
+$18.5M |
| 3 |
iShares MSCI Emerging Markets ETF
EEM
|
+$15.8M |
| 4 |
SPDR S&P MidCap 400 ETF Trust
MDY
|
+$12.9M |
| 5 |
QIHU
QIHOO 360 TECHNOLOGY CO LTD ADS RPSTG 3 CL A SHS
QIHU
|
+$8.72M |
Top Sells
| 1 |
Apple
AAPL
|
+$36.1M |
| 2 |
GMCR
KEURIG GREEN MTN INC
GMCR
|
+$17.9M |
| 3 |
Chipotle Mexican Grill
CMG
|
+$14.9M |
| 4 |
Walt Disney
DIS
|
+$14.5M |
| 5 |
Alibaba
BABA
|
+$13.3M |
Sector Composition
| 1 | Technology | 15.08% |
| 2 | Communication Services | 13.51% |
| 3 | Consumer Discretionary | 9.68% |
| 4 | Healthcare | 8.98% |
| 5 | Financials | 8.3% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
|
USG
376
DELISTED
Usg
USG
| $252K | 0.02% |
+10,164
| New | +$252K |
|
|
AMAG
377
DELISTED
AMAG Pharmaceuticals, Inc.
AMAG
| $250K | 0.02% |
10,718
+4,839
| +82% | +$113K |
|
378
Vanguard Value ETF
VTV
$144B
| $249K | 0.02% |
+3,025
| New | +$249K |
|
379
Molson Coors Class B
TAP
$9.7B
| $248K | 0.02% |
+2,579
| New | +$248K |
|
|
JMEI
380
DELISTED
Jumei International Holding Limited American depositary shares, each representing ten Class A ordina
JMEI
| $247K | 0.02% |
+3,797
| New | +$247K |
|
381
Flowserve
FLS
$7.35B
| $243K | 0.02% |
+5,493
| New | +$243K |
|
382
Bank OZK
OZK
$5.89B
| $243K | 0.02% |
+5,795
| New | +$243K |
|
383
Artisan Partners
APAM
$3.27B
| $242K | 0.02% |
+7,856
| New | +$242K |
|
384
EchoStar
SATS
$23B
| $242K | 0.02% |
6,770
+4,192
| +163% | +$150K |
|
|
WRK
385
DELISTED
WestRock Company
WRK
| $242K | 0.02% |
+6,884
| New | +$242K |
|
386
Liberty Media Series A
FWONA
$22.4B
| $241K | 0.02% |
9,314
-12,332
| -57% | -$319K |
|
387
Genesis Energy
GEL
$2.03B
| $240K | 0.02% |
7,578
+1,122
| +17% | +$35.5K |
|
388
SPDR S&P Bank ETF
KBE
$1.55B
| $240K | 0.02% |
7,903
+7,052
| +829% | +$214K |
|
389
TAL Education Group
TAL
$6.37B
| $240K | 0.02% |
29,076
+19,068
| +191% | +$157K |
|
390
Invesco DB US Dollar Index Bearish Fund
UDN
$147M
| $240K | 0.02% |
+10,796
| New | +$240K |
|
391
Centene
CNC
$15.4B
| $239K | 0.02% |
+7,764
| New | +$239K |
|
392
Marathon Petroleum
MPC
$55.2B
| $239K | 0.02% |
+6,450
| New | +$239K |
|
|
APOL
393
DELISTED
Apollo Education Group Inc Class A
APOL
| $239K | 0.02% |
29,172
+12,339
| +73% | +$101K |
|
394
Avis
CAR
$5.48B
| $238K | 0.02% |
8,715
-7,175
| -45% | -$196K |
|
|
RPTP
395
DELISTED
RAPTOR PHARMACEUTICAL CORP COM STK (DE)
RPTP
| $238K | 0.02% |
51,859
+32,385
| +166% | +$149K |
|
396
Brookdale Senior Living
BKD
$1.81B
| $236K | 0.02% |
14,894
-58,128
| -80% | -$921K |
|
397
Forestar Group
FOR
$1.4B
| $236K | 0.02% |
+18,155
| New | +$236K |
|
|
HIMX
398
Himax Technologies
HIMX
$1.47B
| $236K | 0.02% |
+21,039
| New | +$236K |
|
399
Progress Software
PRGS
$1.83B
| $235K | 0.02% |
+9,746
| New | +$235K |
|
400
Welltower
WELL
$112B
| $235K | 0.02% |
+3,401
| New | +$235K |
|