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
|
+$45.7M |
| 2 |
Walmart
WMT
|
+$45.2M |
| 3 |
VanEck Oil Services ETF
OIH
|
+$34.2M |
| 4 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$33.2M |
| 5 |
Citigroup
C
|
+$32.7M |
Top Sells
| 1 |
Amazon
AMZN
|
+$164M |
| 2 |
Invesco QQQ Trust
QQQ
|
+$111M |
| 3 |
NVIDIA
NVDA
|
+$77.7M |
| 4 |
Meta Platforms (Facebook)
META
|
+$60.9M |
| 5 |
Procter & Gamble
PG
|
+$38.8M |
Sector Composition
| 1 | Technology | 21.73% |
| 2 | Consumer Discretionary | 10.23% |
| 3 | Healthcare | 8.76% |
| 4 | Industrials | 7.59% |
| 5 | Communication Services | 6.56% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
776
Franklin Wireless
FKWL
$47.5M
| $212K | ﹤0.01% |
42,607
+29,573
| +227% | +$147K |
|
777
Centrus Energy
LEU
$3.99B
| $212K | ﹤0.01% |
+6,591
| New | +$212K |
|
778
SCYNEXIS
SCYX
$43.6M
| $212K | ﹤0.01% |
+70,860
| New | +$212K |
|
779
Fortinet
FTNT
$60.9B
| $209K | ﹤0.01% |
3,150
-18,927
| -86% | -$1.26M |
|
780
Phathom Pharmaceuticals
PHAT
$874M
| $209K | ﹤0.01% |
+29,411
| New | +$209K |
|
781
AdaptHealth
AHCO
$1.24B
| $208K | ﹤0.01% |
+16,812
| New | +$208K |
|
782
Cerence
CRNC
$403M
| $207K | ﹤0.01% |
+7,403
| New | +$207K |
|
783
iShares S&P Small-Cap 600 Value ETF
IJS
$6.59B
| $207K | ﹤0.01% |
+2,214
| New | +$207K |
|
784
Vanguard S&P Mid-Cap 400 Growth ETF
IVOG
$1.17B
| $207K | ﹤0.01% |
2,337
+347
| +17% | +$30.7K |
|
785
Radiant Logistics
RLGT
$301M
| $206K | ﹤0.01% |
31,458
+23,221
| +282% | +$152K |
|
786
American Vanguard Corp
AVD
$152M
| $205K | ﹤0.01% |
9,389
-3,714
| -28% | -$81.1K |
|
787
Sphere Entertainment
SPHR
$1.97B
| $205K | ﹤0.01% |
3,477
-5,027
| -59% | -$296K |
|
788
Vuzix
VUZI
$176M
| $205K | ﹤0.01% |
+49,622
| New | +$205K |
|
789
iShares Core S&P Small-Cap ETF
IJR
$85.1B
| $203K | ﹤0.01% |
+2,102
| New | +$203K |
|
790
Direxion Daily Gold Miners Index Bear 2X Shares
DUST
$58.9M
| $202K | ﹤0.01% |
+1,876
| New | +$202K |
|
791
Green Dot
GDOT
$757M
| $202K | ﹤0.01% |
11,809
+6,458
| +121% | +$110K |
|
792
Toast
TOST
$23.3B
| $201K | ﹤0.01% |
+11,366
| New | +$201K |
|
|
MESO
793
Mesoblast
MESO
$1.99B
| $200K | ﹤0.01% |
30,472
+1,848
| +6% | +$12.1K |
|
794
Vanguard Russell 1000 Growth ETF
VONG
$31.6B
| $200K | ﹤0.01% |
3,188
+2,882
| +942% | +$181K |
|
795
Fidelity National Financial
FNF
$16.2B
| $199K | ﹤0.01% |
+5,708
| New | +$199K |
|
796
ImmunityBio
IBRX
$2.43B
| $199K | ﹤0.01% |
109,766
+107,776
| +5,416% | +$195K |
|
797
Citi Trends
CTRN
$286M
| $197K | ﹤0.01% |
+10,398
| New | +$197K |
|
798
Invesco DB Energy Fund
DBE
$49.9M
| $197K | ﹤0.01% |
9,630
-1,100
| -10% | -$22.5K |
|
799
Planet Labs
PL
$2.72B
| $195K | ﹤0.01% |
49,632
+24,739
| +99% | +$97.2K |
|
|
EMBK
800
DELISTED
Embark Technology, Inc. Common Stock
EMBK
| $194K | ﹤0.01% |
+69,333
| New | +$194K |
|