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 |
Goldman Sachs
GS
|
+$38.4M |
| 2 |
Micron Technology
MU
|
+$23.7M |
| 3 |
NVIDIA
NVDA
|
+$23.6M |
| 4 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$21.7M |
| 5 |
Wells Fargo
WFC
|
+$20.4M |
Top Sells
| 1 |
Citigroup
C
|
+$21.6M |
| 2 |
Apple
AAPL
|
+$17.2M |
| 3 |
Invesco QQQ Trust
QQQ
|
+$13.3M |
| 4 |
Eli Lilly
LLY
|
+$9.69M |
| 5 |
Mastercard
MA
|
+$8.27M |
Sector Composition
| 1 | Technology | 14.2% |
| 2 | Communication Services | 13.46% |
| 3 | Consumer Discretionary | 12.76% |
| 4 | Healthcare | 12.43% |
| 5 | Financials | 10.75% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
1251
Teekay
TK
$737M
| $26K | ﹤0.01% |
2,905
+2,470
| +568% | +$22.1K |
|
1252
Uranium Energy
UEC
$5.44B
| $26K | ﹤0.01% |
+18,849
| New | +$26K |
|
1253
Teucrium Wheat Fund
WEAT
$120M
| $26K | ﹤0.01% |
3,861
-2,772
| -42% | -$18.7K |
|
|
VJET
1254
DELISTED
VOXELJET AG American Depositary Shares (each representing one Ordinary Share)
VJET
| $26K | ﹤0.01% |
1,997
+1,513
| +313% | +$19.7K |
|
|
KOL
1255
DELISTED
VanEck Vectors Coal ETF
KOL
| $26K | ﹤0.01% |
195
-621
| -76% | -$82.8K |
|
|
ALDR
1256
DELISTED
Alder Biopharmaceuticals, Inc.
ALDR
| $26K | ﹤0.01% |
1,266
+1,237
| +4,266% | +$25.4K |
|
1257
AXIS Capital
AXS
$7.42B
| $25K | ﹤0.01% |
381
-125
| -25% | -$8.2K |
|
1258
Jakks Pacific
JAKK
$200M
| $25K | ﹤0.01% |
+462
| New | +$25K |
|
1259
POSCO
PKX
$15.6B
| $25K | ﹤0.01% |
388
+190
| +96% | +$12.2K |
|
1260
Televisa
TV
$1.51B
| $25K | ﹤0.01% |
1,001
-7,717
| -89% | -$193K |
|
|
INVX
1261
Innovex International, Inc.
INVX
$1.16B
| $25K | ﹤0.01% |
459
-1,624
| -78% | -$88.5K |
|
|
VSLR
1262
DELISTED
VIVINT SOLAR, INC.
VSLR
| $25K | ﹤0.01% |
9,112
+6,794
| +293% | +$18.6K |
|
|
ARLZ
1263
DELISTED
Aralez Pharmaceuticals Inc.
ARLZ
| $25K | ﹤0.01% |
+11,767
| New | +$25K |
|
1264
Arbor Realty Trust
ABR
$2.27B
| $24K | ﹤0.01% |
+2,907
| New | +$24K |
|
1265
iShares MSCI Emerging Markets Min Vol Factor ETF
EEMV
$4.72B
| $24K | ﹤0.01% |
+457
| New | +$24K |
|
1266
Gen Digital
GEN
$17.7B
| $24K | ﹤0.01% |
789
-8,364
| -91% | -$254K |
|
1267
GameStop
GME
$11.7B
| $24K | ﹤0.01% |
+4,400
| New | +$24K |
|
1268
Global X MSCI Greece ETF
GREK
$307M
| $24K | ﹤0.01% |
1,041
-2,646
| -72% | -$61K |
|
1269
PotlatchDeltic
PCH
$3.12B
| $24K | ﹤0.01% |
528
+518
| +5,180% | +$23.5K |
|
1270
RadNet
RDNT
$5.78B
| $24K | ﹤0.01% |
4,210
+3,560
| +548% | +$20.3K |
|
1271
ProShares Ultra Technology
ROM
$816M
| $24K | ﹤0.01% |
+3,168
| New | +$24K |
|
1272
Vuzix
VUZI
$183M
| $24K | ﹤0.01% |
3,938
-12,536
| -76% | -$76.4K |
|
|
CNCE
1273
DELISTED
Concert Pharmaceuticals, Inc.
CNCE
| $24K | ﹤0.01% |
+1,463
| New | +$24K |
|
|
XCO
1274
DELISTED
Exco Resources
XCO
| $24K | ﹤0.01% |
2,636
+1,900
| +258% | +$17.3K |
|
1275
A10 Networks
ATEN
$1.27B
| $23K | ﹤0.01% |
+2,519
| New | +$23K |
|