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 |
Alphabet (Google) Class C
GOOG
|
+$54.1M |
| 2 |
Apple
AAPL
|
+$28.6M |
| 3 |
Meta Platforms (Facebook)
META
|
+$16.5M |
| 4 |
IBM
IBM
|
+$13.4M |
| 5 |
Baidu
BIDU
|
+$10.3M |
Top Sells
| 1 |
SPDR S&P 500 ETF Trust
SPY
|
+$9.89M |
| 2 |
McDonald's
MCD
|
+$8.52M |
| 3 |
Ralph Lauren
RL
|
+$5.22M |
| 4 |
Intel
INTC
|
+$4.74M |
| 5 |
WBA
Walgreens Boots Alliance
WBA
|
+$4.67M |
Sector Composition
| 1 | Communication Services | 22.01% |
| 2 | Technology | 15.83% |
| 3 | Healthcare | 11.95% |
| 4 | Consumer Discretionary | 9.73% |
| 5 | Financials | 7.98% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
|
FCS
1301
DELISTED
FAIRCHILD SEMICONDUCTOR INTL INC COMMON
FCS
| $14K | ﹤0.01% |
827
-111
| -12% | -$1.88K |
|
|
REV
1302
DELISTED
Revlon, Inc.
REV
| $14K | ﹤0.01% |
+401
| New | +$14K |
|
|
VG
1303
DELISTED
Vonage Holdings Corporation
VG
| $14K | ﹤0.01% |
+2,914
| New | +$14K |
|
1304
US Global Jets ETF
JETS
$831M
| $13K | ﹤0.01% |
+596
| New | +$13K |
|
1305
AllianceBernstein
AB
$4.25B
| $13K | ﹤0.01% |
+453
| New | +$13K |
|
1306
Badger Meter
BMI
$5.28B
| $13K | ﹤0.01% |
432
+372
| +620% | +$11.2K |
|
1307
Cytokinetics
CYTK
$6.26B
| $13K | ﹤0.01% |
1,939
+51
| +3% | +$342 |
|
1308
Vaalco Energy
EGY
$421M
| $13K | ﹤0.01% |
+6,254
| New | +$13K |
|
1309
FuelCell Energy
FCEL
$199M
| $13K | ﹤0.01% |
+3
| New | +$13K |
|
1310
Intercontinental Exchange
ICE
$101B
| $13K | ﹤0.01% |
300
-5,265
| -95% | -$228K |
|
1311
Innoviva
INVA
$1.22B
| $13K | ﹤0.01% |
743
+608
| +450% | +$10.6K |
|
1312
Kodak
KODK
$477M
| $13K | ﹤0.01% |
829
-639
| -44% | -$10K |
|
1313
La-Z-Boy
LZB
$1.41B
| $13K | ﹤0.01% |
517
+497
| +2,485% | +$12.5K |
|
1314
Mitsubishi UFJ Financial
MUFG
$177B
| $13K | ﹤0.01% |
+1,825
| New | +$13K |
|
1315
Insulet
PODD
$24.2B
| $13K | ﹤0.01% |
+425
| New | +$13K |
|
1316
Synopsys
SNPS
$80B
| $13K | ﹤0.01% |
276
+121
| +78% | +$5.7K |
|
|
TWO
1317
Two Harbors Investment
TWO
$1.04B
| $13K | ﹤0.01% |
173
-275
| -61% | -$20.7K |
|
1318
Worthington Enterprises
WOR
$3.19B
| $13K | ﹤0.01% |
712
-1,048
| -60% | -$19.1K |
|
|
ZVO
1319
DELISTED
Zovio Inc. Common Stock
ZVO
| $13K | ﹤0.01% |
1,435
-49
| -3% | -$444 |
|
|
MATR
1320
DELISTED
Mattersight Corp.
MATR
| $13K | ﹤0.01% |
+2,318
| New | +$13K |
|
|
FNGN
1321
DELISTED
Financial Engines, Inc.
FNGN
| $13K | ﹤0.01% |
+322
| New | +$13K |
|
|
NVDQ
1322
DELISTED
Novadaq Technologies Inc.
NVDQ
| $13K | ﹤0.01% |
+1,105
| New | +$13K |
|
|
NMRX
1323
DELISTED
Numerex Corp
NMRX
| $13K | ﹤0.01% |
+1,614
| New | +$13K |
|
|
ETRM
1324
DELISTED
EnteroMedics Inc.
ETRM
| $13K | ﹤0.01% |
21
+16
| +320% | +$9.91K |
|
1325
Dover
DOV
$24.1B
| $12K | ﹤0.01% |
223
-5,519
| -96% | -$297K |
|