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 |
Boeing
BA
|
+$49.5M |
| 2 |
Pinduoduo
PDD
|
+$45.3M |
| 3 |
Microsoft
MSFT
|
+$42.5M |
| 4 |
Apple
AAPL
|
+$33.3M |
| 5 |
Direxion Daily Semiconductor Bull 3X Shares
SOXL
|
+$25.4M |
Top Sells
| 1 |
Broadcom
AVGO
|
+$95.4M |
| 2 |
Citigroup
C
|
+$57.9M |
| 3 |
Pfizer
PFE
|
+$55.9M |
| 4 |
TSMC
TSM
|
+$40.4M |
| 5 |
Starbucks
SBUX
|
+$40.4M |
Sector Composition
| 1 | Technology | 23.11% |
| 2 | Consumer Discretionary | 16.53% |
| 3 | Healthcare | 8.58% |
| 4 | Industrials | 7.58% |
| 5 | Financials | 7.29% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
1476
Jasper Therapeutics
JSPR
$39.5M
| $25K | ﹤0.01% |
1,354
-4,467
| -77% | -$82.5K |
|
1477
Lifecore Biomedical
LFCR
$281M
| $25K | ﹤0.01% |
5,071
+708
| +16% | +$3.49K |
|
1478
Mitek Systems
MITK
$467M
| $25K | ﹤0.01% |
2,899
-54,880
| -95% | -$473K |
|
1479
Omnicell
OMCL
$1.46B
| $25K | ﹤0.01% |
575
+382
| +198% | +$16.6K |
|
1480
PDS Biotechnology
PDSB
$54.5M
| $25K | ﹤0.01% |
6,697
-27,144
| -80% | -$101K |
|
|
PKST
1481
Peakstone Realty Trust
PKST
$519M
| $25K | ﹤0.01% |
1,858
+950
| +105% | +$12.8K |
|
1482
Direxion Daily Technology Bear 3x Shares
TECS
$51.7M
| $25K | ﹤0.01% |
+483
| New | +$25K |
|
1483
Invesco MSCI Global Timber ETF
CUT
$44.3M
| $24K | ﹤0.01% |
+696
| New | +$24K |
|
1484
Enerpac Tool Group
EPAC
$2.3B
| $24K | ﹤0.01% |
578
-1,334
| -70% | -$55.4K |
|
1485
Fidelity MSCI Industrials Index ETF
FIDU
$1.51B
| $24K | ﹤0.01% |
346
+56
| +19% | +$3.88K |
|
1486
KalVista Pharmaceuticals
KALV
$705M
| $24K | ﹤0.01% |
2,084
+869
| +72% | +$10K |
|
1487
Direxion Daily MSFT Bull 2X Shares
MSFU
$145M
| $24K | ﹤0.01% |
561
+270
| +93% | +$11.6K |
|
|
NEWP
1488
New Pacific Metals
NEWP
$374M
| $24K | ﹤0.01% |
16,592
+3,222
| +24% | +$4.66K |
|
1489
Texas Pacific Land
TPL
$21.5B
| $24K | ﹤0.01% |
+28
| New | +$24K |
|
1490
iShares Global Timber & Forestry ETF
WOOD
$247M
| $24K | ﹤0.01% |
288
+55
| +24% | +$4.58K |
|
|
ATSG
1491
DELISTED
Air Transport Services Group, Inc.
ATSG
| $24K | ﹤0.01% |
+1,539
| New | +$24K |
|
1492
American Battery Technology Co
ABAT
$215M
| $23K | ﹤0.01% |
22,293
+6,411
| +40% | +$6.61K |
|
1493
Arcos Dorados Holdings
ARCO
$1.43B
| $23K | ﹤0.01% |
2,672
-23,288
| -90% | -$200K |
|
1494
Asana
ASAN
$3.12B
| $23K | ﹤0.01% |
2,041
-12,238
| -86% | -$138K |
|
|
DNB
1495
DELISTED
Dun & Bradstreet
DNB
| $23K | ﹤0.01% |
+2,013
| New | +$23K |
|
1496
Heron Therapeutics
HRTX
$193M
| $23K | ﹤0.01% |
11,996
-83,635
| -87% | -$160K |
|
1497
Hawkins
HWKN
$3.62B
| $23K | ﹤0.01% |
187
+31
| +20% | +$3.81K |
|
1498
MeiraGTx Holdings
MGTX
$612M
| $23K | ﹤0.01% |
5,741
+985
| +21% | +$3.95K |
|
1499
NetSol Technologies
NTWK
$55.2M
| $23K | ﹤0.01% |
+8,327
| New | +$23K |
|
1500
OptimizeRx
OPRX
$322M
| $23K | ﹤0.01% |
3,085
-24,949
| -89% | -$186K |
|