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 |
Invesco QQQ Trust
QQQ
|
+$85.4M |
| 2 |
SPDR Gold Trust
GLD
|
+$75.9M |
| 3 |
NVIDIA
NVDA
|
+$42.6M |
| 4 |
Netflix
NFLX
|
+$41.1M |
| 5 |
iShares MSCI EAFE ETF
EFA
|
+$40.5M |
Top Sells
| 1 |
Apple
AAPL
|
+$65.7M |
| 2 |
iPath Series B S&P 500 VIX Short-Term Futures ETN
VXX
|
+$25.5M |
| 3 |
SPDR S&P 500 ETF Trust
SPY
|
+$24.4M |
| 4 |
SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$24.3M |
| 5 |
Broadcom
AVGO
|
+$21.3M |
Sector Composition
| 1 | Technology | 15.2% |
| 2 | Consumer Discretionary | 14.52% |
| 3 | Communication Services | 10.57% |
| 4 | Healthcare | 8.15% |
| 5 | Financials | 7.15% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
676
Phillips 66
PSX
$53.5B
| $257K | ﹤0.01% |
3,575
-2,395
| -40% | -$172K |
|
677
Alaunos Therapeutics
TCRT
$5.07M
| $257K | ﹤0.01% |
523
+214
| +69% | +$105K |
|
678
Prudential
PUK
$34.1B
| $255K | ﹤0.01% |
8,684
-4,420
| -34% | -$130K |
|
679
Lamar Advertising Co
LAMR
$12.9B
| $254K | ﹤0.01% |
3,816
-68,115
| -95% | -$4.53M |
|
680
Pampa Energía
PAM
$3.2B
| $254K | ﹤0.01% |
24,267
-9,545
| -28% | -$99.9K |
|
681
Abercrombie & Fitch
ANF
$4.48B
| $253K | ﹤0.01% |
+23,812
| New | +$253K |
|
682
VanEck Gaming ETF
BJK
$27.6M
| $253K | ﹤0.01% |
7,604
-35,446
| -82% | -$1.18M |
|
683
ProShares UltraShort Dow 30
DXD
$51.5M
| $252K | ﹤0.01% |
+2,684
| New | +$252K |
|
684
Hannon Armstrong Sustainable Infrastructure Capital
HASI
$3.43B
| $252K | ﹤0.01% |
+8,871
| New | +$252K |
|
685
Vicor
VICR
$2.25B
| $251K | ﹤0.01% |
+3,491
| New | +$251K |
|
686
Equifax
EFX
$31B
| $248K | ﹤0.01% |
1,447
-2,000
| -58% | -$343K |
|
687
Workhorse Group
WKHS
$18.3M
| $248K | ﹤0.01% |
57
+45
| +375% | +$196K |
|
688
iShares Core S&P Small-Cap ETF
IJR
$85.3B
| $247K | ﹤0.01% |
+3,631
| New | +$247K |
|
689
IQVIA
IQV
$32.2B
| $247K | ﹤0.01% |
+1,745
| New | +$247K |
|
690
Wave Life Sciences
WVE
$1.19B
| $247K | ﹤0.01% |
23,780
+3,117
| +15% | +$32.4K |
|
691
Direxion Daily Real Estate Bear 3X Shares
DRV
$43M
| $246K | ﹤0.01% |
+1,550
| New | +$246K |
|
|
WBT
692
DELISTED
Welbilt, Inc.
WBT
| $245K | ﹤0.01% |
40,347
+39,876
| +8,466% | +$242K |
|
693
OneSpan
OSPN
$589M
| $244K | ﹤0.01% |
8,738
+5,190
| +146% | +$145K |
|
|
JJG
694
DELISTED
iPath Series B Bloomberg Grains Subindex Total ReturnSM ETN
JJG
| $244K | ﹤0.01% |
6,111
-1,005
| -14% | -$40.1K |
|
695
CryoPort
CYRX
$493M
| $243K | ﹤0.01% |
+8,053
| New | +$243K |
|
696
Oppenheimer Holdings
OPY
$764M
| $243K | ﹤0.01% |
11,155
+8,788
| +371% | +$191K |
|
697
Fiverr
FVRR
$874M
| $242K | ﹤0.01% |
+3,290
| New | +$242K |
|
|
CIR
698
DELISTED
CIRCOR International, Inc
CIR
| $241K | ﹤0.01% |
+9,470
| New | +$241K |
|
699
Jack Henry & Associates
JKHY
$11.9B
| $240K | ﹤0.01% |
+1,307
| New | +$240K |
|
700
Amphenol
APH
$143B
| $238K | ﹤0.01% |
+9,964
| New | +$238K |
|