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 | |
|---|---|---|---|---|---|---|
1476
BlueLinx
BXC
$617M
| $24K | ﹤0.01% |
+366
| New | +$24K |
|
1477
Cidara Therapeutics
CDTX
$1.66B
| $24K | ﹤0.01% |
+978
| New | +$24K |
|
1478
Compass
COMP
$4.92B
| $24K | ﹤0.01% |
+7,739
| New | +$24K |
|
1479
ProShares Short Dow30
DOG
$122M
| $24K | ﹤0.01% |
+729
| New | +$24K |
|
1480
Fathom Holdings
FTHM
$79.4M
| $24K | ﹤0.01% |
+5,802
| New | +$24K |
|
1481
StealthGas
GASS
$271M
| $24K | ﹤0.01% |
9,415
+5,359
| +132% | +$13.7K |
|
1482
Quest Resource Holding
QRHC
$34M
| $24K | ﹤0.01% |
4,061
-5,561
| -58% | -$32.9K |
|
1483
Vanguard International High Dividend Yield ETF
VYMI
$12B
| $24K | ﹤0.01% |
388
-25
| -6% | -$1.55K |
|
|
YSG
1484
Yatsen Holding
YSG
$955M
| $24K | ﹤0.01% |
+3,281
| New | +$24K |
|
|
BIG
1485
DELISTED
Big Lots, Inc.
BIG
| $24K | ﹤0.01% |
2,261
-115,180
| -98% | -$1.22M |
|
1486
ALPS Clean Energy ETF
ACES
$93.3M
| $23K | ﹤0.01% |
+516
| New | +$23K |
|
1487
Applied DNA Sciences
APDN
$3.46M
| $23K | ﹤0.01% |
+1
| New | +$23K |
|
1488
Bakkt Holdings
BKKT
$152M
| $23K | ﹤0.01% |
544
+507
| +1,370% | +$21.4K |
|
|
BRSP
1489
BrightSpire Capital
BRSP
$764M
| $23K | ﹤0.01% |
4,056
+3,573
| +740% | +$20.3K |
|
1490
ClearPoint Neuro
CLPT
$298M
| $23K | ﹤0.01% |
2,736
-3,148
| -54% | -$26.5K |
|
1491
Direxion Daily Emerging Markets Bear 3x Shares
EDZ
$11.6M
| $23K | ﹤0.01% |
+1,923
| New | +$23K |
|
1492
Vertical Aerospace
EVTL
$523M
| $23K | ﹤0.01% |
1,098
-134
| -11% | -$2.81K |
|
1493
InflaRx
IFRX
$85.4M
| $23K | ﹤0.01% |
12,044
-16,846
| -58% | -$32.2K |
|
|
INZY
1494
DELISTED
Inozyme Pharma
INZY
| $23K | ﹤0.01% |
4,181
+4,044
| +2,952% | +$22.2K |
|
1495
Kezar Life Sciences
KZR
$28.9M
| $23K | ﹤0.01% |
+745
| New | +$23K |
|
1496
MiMedx Group
MDXG
$1.03B
| $23K | ﹤0.01% |
6,998
-11,809
| -63% | -$38.8K |
|
1497
Invesco Oil & Gas Services ETF
PXJ
$27.4M
| $23K | ﹤0.01% |
945
+609
| +181% | +$14.8K |
|
1498
QuantumScape
QS
$5.63B
| $23K | ﹤0.01% |
2,830
| – | – |
|
1499
Splash Beverage Group
SBEV
$3.69M
| $23K | ﹤0.01% |
361
+304
| +533% | +$19.4K |
|
1500
ProShares VIX Mid-Term Futures ETF
VIXM
$40.8M
| $23K | ﹤0.01% |
885
-3,133
| -78% | -$81.4K |
|