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
|
+$60M |
| 2 |
Microsoft
MSFT
|
+$58.6M |
| 3 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$52.5M |
| 4 |
PayPal
PYPL
|
+$40.9M |
| 5 |
Netflix
NFLX
|
+$29.7M |
Top Sells
| 1 |
Apple
AAPL
|
+$48.7M |
| 2 |
Walmart
WMT
|
+$45.2M |
| 3 |
Adobe
ADBE
|
+$40.6M |
| 4 |
VanEck Oil Services ETF
OIH
|
+$34.2M |
| 5 |
Enphase Energy
ENPH
|
+$27.2M |
Sector Composition
| 1 | Technology | 21.17% |
| 2 | Healthcare | 10.87% |
| 3 | Consumer Discretionary | 10.73% |
| 4 | Communication Services | 10.55% |
| 5 | Financials | 7.54% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
1226
Kinsale Capital Group
KNSL
$10.1B
| $60K | ﹤0.01% |
+163
| New | +$60K |
|
1227
Repare Therapeutics
RPTX
$75.6M
| $60K | ﹤0.01% |
5,677
+4,692
| +476% | +$49.6K |
|
1228
SkyWater Technology
SKYT
$509M
| $60K | ﹤0.01% |
6,381
+5,252
| +465% | +$49.4K |
|
|
VRAY
1229
DELISTED
ViewRay, Inc.
VRAY
| $60K | ﹤0.01% |
171,300
-163,337
| -49% | -$57.2K |
|
1230
MeiraGTx Holdings
MGTX
$612M
| $59K | ﹤0.01% |
8,912
+8,005
| +883% | +$53K |
|
1231
Rimini Street
RMNI
$417M
| $59K | ﹤0.01% |
12,362
+2,642
| +27% | +$12.6K |
|
1232
Stitch Fix
SFIX
$714M
| $59K | ﹤0.01% |
+15,465
| New | +$59K |
|
1233
Ultra Clean Holdings
UCTT
$1.14B
| $59K | ﹤0.01% |
+1,544
| New | +$59K |
|
1234
Uranium Energy
UEC
$5.27B
| $59K | ﹤0.01% |
17,604
-19,093
| -52% | -$64K |
|
1235
Watts Water Technologies
WTS
$9.39B
| $59K | ﹤0.01% |
323
-40
| -11% | -$7.31K |
|
1236
Focus Universal
FCUV
$20.7M
| $58K | ﹤0.01% |
3,837
+565
| +17% | +$8.54K |
|
1237
Franklin Wireless
FKWL
$47.5M
| $58K | ﹤0.01% |
15,806
-26,801
| -63% | -$98.3K |
|
1238
Ichor Holdings
ICHR
$579M
| $58K | ﹤0.01% |
1,571
+1,194
| +317% | +$44.1K |
|
1239
Invesco KBW Regional Banking ETF
KBWR
$53.1M
| $58K | ﹤0.01% |
+1,360
| New | +$58K |
|
1240
Nurix Therapeutics
NRIX
$691M
| $58K | ﹤0.01% |
+5,810
| New | +$58K |
|
1241
Invesco DB Oil Fund
DBO
$228M
| $57K | ﹤0.01% |
4,093
+2,861
| +232% | +$39.8K |
|
1242
Redwire
RDW
$1.25B
| $57K | ﹤0.01% |
22,423
-24,296
| -52% | -$61.8K |
|
1243
Taboola.com
TBLA
$994M
| $57K | ﹤0.01% |
18,514
-22,830
| -55% | -$70.3K |
|
1244
Bentley Systems
BSY
$16.1B
| $56K | ﹤0.01% |
+1,039
| New | +$56K |
|
1245
Fulton Financial
FULT
$3.54B
| $56K | ﹤0.01% |
+4,707
| New | +$56K |
|
1246
Gildan
GIL
$8.03B
| $56K | ﹤0.01% |
1,752
-58
| -3% | -$1.85K |
|
1247
D-Wave Quantum
QBTS
$6.07B
| $56K | ﹤0.01% |
27,261
+2,750
| +11% | +$5.65K |
|
1248
Raymond James Financial
RJF
$33.9B
| $56K | ﹤0.01% |
+548
| New | +$56K |
|
1249
TETRA Technologies
TTI
$630M
| $56K | ﹤0.01% |
16,712
-75,772
| -82% | -$254K |
|
|
NVEI
1250
DELISTED
Nuvei Corporation Subordinate Voting Shares
NVEI
| $55K | ﹤0.01% |
+1,861
| New | +$55K |
|