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 | +$237M | |
| 2 | +$103M | |
| 3 | +$93.9M | |
| 4 |
iShares Bitcoin Trust
IBIT
|
+$80.5M |
| 5 |
Pinduoduo
PDD
|
+$61.3M |
Top Sells
| 1 | +$129M | |
| 2 | +$108M | |
| 3 | +$89.1M | |
| 4 |
Alphabet (Google) Class C
GOOG
|
+$79.3M |
| 5 |
Micron Technology
MU
|
+$64.3M |
Sector Composition
| 1 | Technology | 34.04% |
| 2 | Consumer Discretionary | 13.08% |
| 3 | Healthcare | 10.63% |
| 4 | Financials | 7.02% |
| 5 | Industrials | 3.96% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
426
BioMarin Pharmaceuticals
BMRN
$10.4B
| $1.25M | ﹤0.01% |
+23,096
|
|
||
427
Performance Food Group
PFGC
$15B
| $1.24M | ﹤0.01% |
11,966
+10,330
|
|
||
428
Marathon Petroleum
MPC
$58.5B
| $1.24M | ﹤0.01% |
6,451
-10,047
|
|
||
429
Western Alliance Bancorporation
WAL
$8.6B
| $1.24M | ﹤0.01% |
14,332
+9,977
|
|
||
430
Cirrus Logic
CRUS
$6.1B
| $1.24M | ﹤0.01% |
+9,869
|
|
||
431
PPG Industries
PPG
$22B
| $1.24M | ﹤0.01% |
11,763
-9,169
|
|
||
432
Noble Corp
NE
$4.71B
| $1.23M | ﹤0.01% |
43,658
-25,485
|
|
||
433
Sibanye-Stillwater
SBSW
$7.98B
| $1.22M | ﹤0.01% |
+108,938
|
|
||
434
Travere Therapeutics
TVTX
$3.03B
| $1.22M | ﹤0.01% |
+51,241
|
|
||
435
Imperial Petroleum
IMPP
$207M
| $1.22M | ﹤0.01% |
+255,273
|
|
||
436
Apellis Pharmaceuticals
APLS
$2.51B
| $1.22M | ﹤0.01% |
53,901
-2,033
|
|
||
437
Rumble
RUM
$1.92B
| $1.22M | ﹤0.01% |
168,214
+24,683
|
|
||
438
GoPro
GPRO
$241M
| $1.21M | ﹤0.01% |
573,104
+261,764
|
|
||
439
Campbell Soup
CPB
$9.3B
| $1.21M | ﹤0.01% |
38,418
-64,837
|
|
||
440
TEGNA Inc
TGNA
$3.21B
| $1.21M | ﹤0.01% |
59,559
+47,176
|
|
||
441
ZTO Express
ZTO
$15.1B
| $1.21M | ﹤0.01% |
+63,018
|
|
||
|
CMBT
442
CMB.TECH NV
CMBT
$2.89B
| $1.21M | ﹤0.01% |
+128,479
|
|
||
443
CarMax
KMX
$5.11B
| $1.2M | ﹤0.01% |
26,706
+24,623
|
|
||
|
TIC
444
TIC Solutions Inc
TIC
$2.26B
| $1.2M | ﹤0.01% |
+90,061
|
|
||
445
Praxis Precision Medicines
PRAX
$4.45B
| $1.19M | ﹤0.01% |
22,529
-2,799
|
|
||
446
Etsy
ETSY
$5.77B
| $1.19M | ﹤0.01% |
+17,958
|
|
||
447
Hormel Foods
HRL
$12.5B
| $1.19M | ﹤0.01% |
48,002
+41,972
|
|
||
448
Northern Trust
NTRS
$24.4B
| $1.19M | ﹤0.01% |
+8,816
|
|
||
|
RZLV
449
Rezolve AI
RZLV
$959M
| $1.19M | ﹤0.01% |
238,335
+162,523
|
|
||
450
Viasat
VSAT
$4.84B
| $1.18M | ﹤0.01% |
40,276
-7,962
|
|