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 | |
|---|---|---|---|---|---|---|
1201
Galectin Therapeutics
GALT
$350M
| $94K | ﹤0.01% |
44,694
+43,915
| +5,637% | +$92.4K |
|
|
NIU
1202
Niu Technologies
NIU
$318M
| $94K | ﹤0.01% |
28,167
+14,190
| +102% | +$47.4K |
|
1203
Valley National Bancorp
VLY
$6.02B
| $94K | ﹤0.01% |
10,595
-47,535
| -82% | -$422K |
|
1204
Xometry
XMTR
$2.6B
| $94K | ﹤0.01% |
+2,797
| New | +$94K |
|
|
ACB
1205
Aurora Cannabis
ACB
$277M
| $93K | ﹤0.01% |
22,065
+16,694
| +311% | +$70.4K |
|
1206
Excelerate Energy
EE
$769M
| $93K | ﹤0.01% |
+3,186
| New | +$93K |
|
1207
iShares MSCI Poland ETF
EPOL
$453M
| $93K | ﹤0.01% |
+2,907
| New | +$93K |
|
1208
Global X Lithium & Battery Tech ETF
LIT
$1.14B
| $93K | ﹤0.01% |
2,440
-6,332
| -72% | -$241K |
|
1209
Comtech Telecommunications
CMTL
$67.3M
| $92K | ﹤0.01% |
37,795
+22,040
| +140% | +$53.6K |
|
1210
CVRx
CVRX
$213M
| $92K | ﹤0.01% |
15,813
+15,254
| +2,729% | +$88.7K |
|
1211
Innovator IBD 50 ETF
FFTY
$80.3M
| $92K | ﹤0.01% |
2,861
+1,138
| +66% | +$36.6K |
|
|
VNET
1212
VNET Group
VNET
$2.58B
| $92K | ﹤0.01% |
+13,439
| New | +$92K |
|
1213
Yeti Holdings
YETI
$2.93B
| $92K | ﹤0.01% |
+2,941
| New | +$92K |
|
1214
Incyte
INCY
$16.4B
| $91K | ﹤0.01% |
+1,342
| New | +$91K |
|
1215
TaskUs
TASK
$1.56B
| $91K | ﹤0.01% |
5,489
+4,537
| +477% | +$75.2K |
|
1216
Westrock Coffee
WEST
$503M
| $91K | ﹤0.01% |
15,953
-5,254
| -25% | -$30K |
|
1217
Black Hills Corp
BKH
$4.31B
| $90K | ﹤0.01% |
+1,605
| New | +$90K |
|
1218
89bio
ETNB
$1.26B
| $90K | ﹤0.01% |
9,193
+5,507
| +149% | +$53.9K |
|
|
JFIN
1219
Jiayin Group
JFIN
$589M
| $90K | ﹤0.01% |
5,657
-4,856
| -46% | -$77.3K |
|
1220
Oppenheimer Holdings
OPY
$806M
| $90K | ﹤0.01% |
+1,377
| New | +$90K |
|
|
AVGX
1221
Defiance Daily Target 2X Long AVGO ETF
AVGX
$121M
| $90K | ﹤0.01% |
+2,521
| New | +$90K |
|
|
JOYY
1222
JOYY Inc. American Depositary Shares
JOYY
$3.19B
| $90K | ﹤0.01% |
+1,771
| New | +$90K |
|
1223
Roper Technologies
ROP
$55.4B
| $89K | ﹤0.01% |
158
-137
| -46% | -$77.2K |
|
1224
Big 5 Sporting Goods
BGFV
$32.8M
| $88K | ﹤0.01% |
+62,122
| New | +$88K |
|
1225
Delcath Systems
DCTH
$389M
| $88K | ﹤0.01% |
6,505
+2,958
| +83% | +$40K |
|