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 |
NVIDIA
NVDA
|
+$216M |
| 2 |
Apple
AAPL
|
+$159M |
| 3 |
Broadcom
AVGO
|
+$128M |
| 4 |
Booking.com
BKNG
|
+$62.2M |
| 5 |
SPDR S&P 500 ETF Trust
SPY
|
+$61.9M |
Top Sells
| 1 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$141M |
| 2 |
Amazon
AMZN
|
+$53.1M |
| 3 |
TSMC
TSM
|
+$45.7M |
| 4 |
Netflix
NFLX
|
+$45.3M |
| 5 |
Pfizer
PFE
|
+$38.3M |
Sector Composition
| 1 | Technology | 34.74% |
| 2 | Communication Services | 9% |
| 3 | Consumer Discretionary | 8.67% |
| 4 | Healthcare | 8.07% |
| 5 | Financials | 6.4% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
1551
KLX Energy Services
KLXE
$31.4M
| $31K | ﹤0.01% |
+16,943
| New | +$31K |
|
1552
Cassava Sciences
SAVA
$102M
| $31K | ﹤0.01% |
17,261
+7,317
| +74% | +$13.1K |
|
1553
Shoe Carnival
SCVL
$636M
| $31K | ﹤0.01% |
1,687
+1,681
| +28,017% | +$30.9K |
|
1554
SPDR Portfolio TIPS ETF
SPIP
$988M
| $31K | ﹤0.01% |
+1,201
| New | +$31K |
|
1555
Surmodics
SRDX
$457M
| $31K | ﹤0.01% |
1,048
-1,252
| -54% | -$37K |
|
1556
Target Hospitality
TH
$881M
| $31K | ﹤0.01% |
4,475
-23,241
| -84% | -$161K |
|
1557
AirSculpt Technologies
AIRS
$387M
| $30K | ﹤0.01% |
6,274
+5,039
| +408% | +$24.1K |
|
1558
DMC Global
BOOM
$145M
| $30K | ﹤0.01% |
+3,738
| New | +$30K |
|
1559
HUTCHMED
HCM
$3.08B
| $30K | ﹤0.01% |
2,057
+492
| +31% | +$7.18K |
|
1560
Real Brokerage
REAX
$1.04B
| $30K | ﹤0.01% |
6,807
-5,958
| -47% | -$26.3K |
|
1561
United Microelectronic
UMC
$17B
| $30K | ﹤0.01% |
4,038
-8,702
| -68% | -$64.7K |
|
1562
W&T Offshore
WTI
$257M
| $30K | ﹤0.01% |
18,637
-56,542
| -75% | -$91K |
|
|
RDTL
1563
GraniteShares 2x Long RDDT Daily ETF
RDTL
$49.8M
| $30K | ﹤0.01% |
+1,065
| New | +$30K |
|
1564
AvidXchange
AVDX
$2.06B
| $29K | ﹤0.01% |
3,000
-89,530
| -97% | -$865K |
|
1565
Valkyrie ETF Trust II CoinShares Bitcoin and Ether ETF
BTF
$43.9M
| $29K | ﹤0.01% |
2,262
+1,754
| +345% | +$22.5K |
|
1566
Crescent Capital BDC
CCAP
$586M
| $29K | ﹤0.01% |
2,122
+2,071
| +4,061% | +$28.3K |
|
1567
Amicus Therapeutics
FOLD
$2.46B
| $29K | ﹤0.01% |
5,210
-59,404
| -92% | -$331K |
|
1568
Icon
ICLR
$13.6B
| $29K | ﹤0.01% |
+204
| New | +$29K |
|
1569
Monro
MNRO
$519M
| $29K | ﹤0.01% |
2,011
-1,603
| -44% | -$23.1K |
|
1570
LendingTree
TREE
$978M
| $29K | ﹤0.01% |
+804
| New | +$29K |
|
1571
Twin Disc
TWIN
$190M
| $29K | ﹤0.01% |
+3,308
| New | +$29K |
|
|
NVDG
1572
Leverage Shares 2X Long NVDA Daily ETF
NVDG
$17.4M
| $29K | ﹤0.01% |
+1,959
| New | +$29K |
|
1573
Altice USA
ATUS
$1.12B
| $28K | ﹤0.01% |
+13,532
| New | +$28K |
|
|
BLDP
1574
Ballard Power Systems
BLDP
$622M
| $28K | ﹤0.01% |
18,048
+10,098
| +127% | +$15.7K |
|
1575
BRC Inc
BRCC
$183M
| $28K | ﹤0.01% |
21,555
+15,971
| +286% | +$20.7K |
|