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 | |
|---|---|---|---|---|---|---|
276
Hologic
HOLX
$14.8B
| $1.59M | ﹤0.01% |
19,652
+15,199
| +341% | +$1.23M |
|
277
Moody's
MCO
$89.5B
| $1.58M | ﹤0.01% |
+4,543
| New | +$1.58M |
|
|
WW
278
DELISTED
WW International
WW
| $1.55M | ﹤0.01% |
229,930
-22,282
| -9% | -$150K |
|
279
WESCO International
WCC
$10.7B
| $1.53M | ﹤0.01% |
8,526
-4,831
| -36% | -$865K |
|
280
Consolidated Edison
ED
$35.4B
| $1.53M | ﹤0.01% |
16,877
-545
| -3% | -$49.2K |
|
281
Vista Energy
VIST
$3.97B
| $1.52M | ﹤0.01% |
62,962
+46,834
| +290% | +$1.13M |
|
282
US Bancorp
USB
$75.9B
| $1.51M | ﹤0.01% |
+45,739
| New | +$1.51M |
|
283
Clorox
CLX
$15.5B
| $1.5M | ﹤0.01% |
+9,433
| New | +$1.5M |
|
284
TriNet
TNET
$3.43B
| $1.5M | ﹤0.01% |
15,743
+15,348
| +3,886% | +$1.46M |
|
285
iShares iBoxx $ Investment Grade Corporate Bond ETF
LQD
$29.8B
| $1.49M | ﹤0.01% |
+13,790
| New | +$1.49M |
|
286
Intellia Therapeutics
NTLA
$1.29B
| $1.48M | ﹤0.01% |
36,386
+30,490
| +517% | +$1.24M |
|
287
iShares 1-3 Year Treasury Bond ETF
SHY
$24.5B
| $1.47M | ﹤0.01% |
18,140
-12,344
| -40% | -$1M |
|
288
Melco Resorts & Entertainment
MLCO
$3.8B
| $1.45M | ﹤0.01% |
118,901
+2,615
| +2% | +$31.9K |
|
|
WWE
289
DELISTED
World Wrestling Entertainment
WWE
| $1.45M | ﹤0.01% |
+13,386
| New | +$1.45M |
|
290
Direxion Daily Technology Bull 3x Shares
TECL
$3.48B
| $1.45M | ﹤0.01% |
26,821
+26,621
| +13,311% | +$1.44M |
|
291
Zscaler
ZS
$42.7B
| $1.44M | ﹤0.01% |
9,856
+4,089
| +71% | +$598K |
|
292
Teck Resources
TECK
$16.8B
| $1.43M | ﹤0.01% |
34,038
-88,812
| -72% | -$3.74M |
|
293
Philips
PHG
$26.5B
| $1.42M | ﹤0.01% |
70,680
+30,362
| +75% | +$611K |
|
294
Republic Services
RSG
$71.7B
| $1.42M | ﹤0.01% |
9,251
+2,783
| +43% | +$426K |
|
295
Designer Brands
DBI
$231M
| $1.41M | ﹤0.01% |
140,038
+131,567
| +1,553% | +$1.33M |
|
296
Asana
ASAN
$3.18B
| $1.41M | ﹤0.01% |
64,088
+18,322
| +40% | +$404K |
|
297
iShares Mortgage Real Estate ETF
REM
$618M
| $1.41M | ﹤0.01% |
59,673
-130,870
| -69% | -$3.09M |
|
298
Cantaloupe
CTLP
$792M
| $1.4M | ﹤0.01% |
175,451
+90,206
| +106% | +$718K |
|
299
Garrett Motion
GTX
$2.64B
| $1.39M | ﹤0.01% |
+183,758
| New | +$1.39M |
|
300
Academy Sports + Outdoors
ASO
$3.39B
| $1.39M | ﹤0.01% |
25,642
+18,111
| +240% | +$978K |
|