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 | |
|---|---|---|---|---|---|---|
251
Xcel Energy
XEL
$43B
| $1.77M | ﹤0.01% |
+28,468
| New | +$1.77M |
|
252
Eos Energy Enterprises
EOSE
$2.01B
| $1.76M | ﹤0.01% |
404,883
+128,378
| +46% | +$557K |
|
253
Waste Management
WM
$88.6B
| $1.73M | ﹤0.01% |
+9,964
| New | +$1.73M |
|
254
LKQ Corp
LKQ
$8.33B
| $1.71M | ﹤0.01% |
29,368
+14,808
| +102% | +$863K |
|
255
McCormick & Company Non-Voting
MKC
$19B
| $1.7M | ﹤0.01% |
19,514
-9,062
| -32% | -$790K |
|
|
TBCH
256
Turtle Beach Corporation Common Stock
TBCH
$305M
| $1.7M | ﹤0.01% |
146,010
+98,342
| +206% | +$1.15M |
|
257
Aurinia Pharmaceuticals
AUPH
$1.63B
| $1.7M | ﹤0.01% |
175,407
-86,163
| -33% | -$834K |
|
|
BCYC
258
Bicycle Therapeutics
BCYC
$496M
| $1.7M | ﹤0.01% |
66,443
+40,555
| +157% | +$1.03M |
|
259
Wyndham Hotels & Resorts
WH
$6.59B
| $1.69M | ﹤0.01% |
+24,685
| New | +$1.69M |
|
260
Extreme Networks
EXTR
$2.87B
| $1.68M | ﹤0.01% |
64,680
+64,621
| +109,527% | +$1.68M |
|
261
Marathon Petroleum
MPC
$54.8B
| $1.68M | ﹤0.01% |
+14,431
| New | +$1.68M |
|
262
Hanesbrands
HBI
$2.27B
| $1.67M | ﹤0.01% |
367,461
-257,691
| -41% | -$1.17M |
|
263
iShares MSCI China ETF
MCHI
$7.91B
| $1.66M | ﹤0.01% |
37,173
-107,287
| -74% | -$4.8M |
|
264
Credo Technology Group
CRDO
$24.4B
| $1.65M | ﹤0.01% |
+95,339
| New | +$1.65M |
|
265
Avantis US Small Cap Value ETF
AVUV
$18.4B
| $1.65M | ﹤0.01% |
21,287
+554
| +3% | +$43K |
|
266
Honda
HMC
$44.8B
| $1.64M | ﹤0.01% |
54,073
+26,020
| +93% | +$788K |
|
267
Navitas Semiconductor
NVTS
$1.19B
| $1.64M | ﹤0.01% |
155,483
+137,888
| +784% | +$1.45M |
|
268
Direxion Daily Semiconductor Bear 3X Shares
SOXS
$1.43B
| $1.64M | ﹤0.01% |
16,572
+13,035
| +369% | +$1.29M |
|
269
BlackBerry
BB
$2.31B
| $1.61M | ﹤0.01% |
+291,487
| New | +$1.61M |
|
270
Marsh & McLennan
MMC
$100B
| $1.6M | ﹤0.01% |
+8,529
| New | +$1.6M |
|
271
Topgolf Callaway Brands
MODG
$1.7B
| $1.6M | ﹤0.01% |
+80,440
| New | +$1.6M |
|
272
AngloGold Ashanti
AU
$30.2B
| $1.6M | ﹤0.01% |
75,631
+55,222
| +271% | +$1.16M |
|
273
Camtek
CAMT
$3.6B
| $1.6M | ﹤0.01% |
44,788
+2,499
| +6% | +$89K |
|
|
MRTX
274
DELISTED
Mirati Therapeutics, Inc. Common Stock
MRTX
| $1.6M | ﹤0.01% |
44,163
+12,375
| +39% | +$447K |
|
275
Mattel
MAT
$6.06B
| $1.59M | ﹤0.01% |
81,543
-595
| -0.7% | -$11.6K |
|