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 |
Financial Select Sector SPDR Fund
XLF
|
$42.3M |
| 2 |
Shopify
SHOP
|
$37.4M |
| 3 |
Verizon
VZ
|
$34M |
| 4 |
iShares China Large-Cap ETF
FXI
|
$33M |
| 5 |
Merck
MRK
|
$28M |
Top Sells
| 1 |
AMC Entertainment Holdings
AMC
|
$38.3M |
| 2 |
Carnival Corp
CCL
|
$37.6M |
| 3 |
GE Aerospace
GE
|
$33M |
| 4 |
Advanced Micro Devices
AMD
|
$30.6M |
| 5 |
Micron Technology
MU
|
$28.3M |
Sector Composition
| 1 | Technology | 20.53% |
| 2 | Consumer Discretionary | 13.81% |
| 3 | Healthcare | 11.39% |
| 4 | Communication Services | 7.32% |
| 5 | Industrials | 6.51% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
276
Vanguard Short-Term Inflation-Protected Securities Index Fund
VTIP
$15.7B
| $2.33M | ﹤0.01% |
+45,331
| New | +$2.33M |
|
277
Kulicke & Soffa
KLIC
$1.99B
| $2.32M | ﹤0.01% |
38,345
+36,845
| +2,456% | +$2.23M |
|
278
Synchrony
SYF
$28.1B
| $2.31M | ﹤0.01% |
49,764
+46,177
| +1,287% | +$2.14M |
|
279
Corteva
CTVA
$49.1B
| $2.31M | ﹤0.01% |
48,758
+4,711
| +11% | +$223K |
|
|
JWN
280
DELISTED
Nordstrom
JWN
| $2.31M | ﹤0.01% |
101,903
+11,058
| +12% | +$250K |
|
281
American International
AIG
$43.9B
| $2.3M | ﹤0.01% |
40,461
+24,194
| +149% | +$1.38M |
|
282
Calix
CALX
$3.96B
| $2.27M | ﹤0.01% |
28,336
+8,190
| +41% | +$655K |
|
|
NOVA
283
DELISTED
Sunnova Energy
NOVA
| $2.27M | ﹤0.01% |
81,196
+75,668
| +1,369% | +$2.11M |
|
284
iShares S&P 500 Growth ETF
IVW
$63.7B
| $2.25M | ﹤0.01% |
+26,837
| New | +$2.25M |
|
285
Aptiv
APTV
$17.5B
| $2.23M | ﹤0.01% |
13,501
+9,173
| +212% | +$1.51M |
|
286
Direxion Daily Homebuilders & Supplies Bull 3X Shares
NAIL
$676M
| $2.22M | ﹤0.01% |
+17,971
| New | +$2.22M |
|
287
Kirby Corp
KEX
$4.97B
| $2.21M | ﹤0.01% |
37,181
+36,812
| +9,976% | +$2.19M |
|
|
PSTH
288
DELISTED
Pershing Square Tontine Holdings, Ltd.
PSTH
| $2.19M | ﹤0.01% |
111,292
+65,380
| +142% | +$1.29M |
|
289
Bath & Body Works
BBWI
$6.06B
| $2.19M | ﹤0.01% |
+31,377
| New | +$2.19M |
|
290
Abercrombie & Fitch
ANF
$4.49B
| $2.19M | ﹤0.01% |
+62,800
| New | +$2.19M |
|
291
Vistra
VST
$63.7B
| $2.18M | ﹤0.01% |
+95,925
| New | +$2.18M |
|
292
Bread Financial
BFH
$3.09B
| $2.18M | ﹤0.01% |
+32,734
| New | +$2.18M |
|
293
Canadian Natural Resources
CNQ
$63.2B
| $2.17M | ﹤0.01% |
104,996
-34,072
| -25% | -$705K |
|
|
CPE
294
DELISTED
Callon Petroleum Company
CPE
| $2.17M | ﹤0.01% |
45,969
+44,372
| +2,778% | +$2.1M |
|
295
Aurinia Pharmaceuticals
AUPH
$1.63B
| $2.16M | ﹤0.01% |
94,641
+6,944
| +8% | +$159K |
|
296
TG Therapeutics
TGTX
$5.11B
| $2.16M | ﹤0.01% |
113,598
+79,651
| +235% | +$1.51M |
|
|
RDS.A
297
DELISTED
Royal Dutch Shell PLC ADS Class A
RDS.A
| $2.16M | ﹤0.01% |
49,734
-18,706
| -27% | -$812K |
|
298
MBIA
MBI
$377M
| $2.13M | ﹤0.01% |
134,621
+133,512
| +12,039% | +$2.11M |
|
299
Nova
NVMI
$7.58B
| $2.12M | ﹤0.01% |
14,467
+10,501
| +265% | +$1.54M |
|
300
Trip.com Group
TCOM
$47.6B
| $2.11M | ﹤0.01% |
85,890
+26,098
| +44% | +$642K |
|