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 |
Amazon
AMZN
|
+$84.3M |
| 2 |
Alphabet (Google) Class A
GOOGL
|
+$37M |
| 3 |
Amgen
AMGN
|
+$32.3M |
| 4 |
Micron Technology
MU
|
+$29.4M |
| 5 |
Qualcomm
QCOM
|
+$18M |
Top Sells
| 1 |
SPDR S&P 500 ETF Trust
SPY
|
+$29.8M |
| 2 |
Gilead Sciences
GILD
|
+$29.3M |
| 3 |
Goldman Sachs
GS
|
+$27.7M |
| 4 |
Booking.com
BKNG
|
+$26M |
| 5 |
AT&T
T
|
+$20.8M |
Sector Composition
| 1 | Technology | 20.65% |
| 2 | Communication Services | 17.64% |
| 3 | Consumer Discretionary | 14.77% |
| 4 | Healthcare | 11.1% |
| 5 | Financials | 6.35% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
1376
The Bancorp
TBBK
$3.5B
| $18K | ﹤0.01% |
+2,454
| New | +$18K |
|
|
LBY
1377
DELISTED
Libbey, Inc.
LBY
| $18K | ﹤0.01% |
+2,327
| New | +$18K |
|
|
HIVE
1378
DELISTED
AEROHIVE NETWORKS, INC.
HIVE
| $18K | ﹤0.01% |
3,695
+3,662
| +11,097% | +$17.8K |
|
|
WIN
1379
DELISTED
Windstream Holdings Inc
WIN
| $18K | ﹤0.01% |
+932
| New | +$18K |
|
1380
Accuray
ARAY
$177M
| $17K | ﹤0.01% |
3,724
-11,425
| -75% | -$52.2K |
|
|
DHC
1381
Diversified Healthcare Trust
DHC
$1.07B
| $17K | ﹤0.01% |
+835
| New | +$17K |
|
1382
Ezcorp Inc
EZPW
$1.04B
| $17K | ﹤0.01% |
+2,289
| New | +$17K |
|
1383
El Pollo Loco
LOCO
$304M
| $17K | ﹤0.01% |
1,281
+552
| +76% | +$7.33K |
|
1384
Nutanix
NTNX
$21.2B
| $17K | ﹤0.01% |
850
-74,910
| -99% | -$1.5M |
|
1385
Regis Corp
RGS
$70.8M
| $17K | ﹤0.01% |
85
+77
| +963% | +$15.4K |
|
1386
Watsco
WSO
$15.5B
| $17K | ﹤0.01% |
114
| – | – |
|
|
MAGN
1387
Magnera Corporation
MAGN
$393M
| $17K | ﹤0.01% |
+68
| New | +$17K |
|
|
ATSG
1388
DELISTED
Air Transport Services Group, Inc.
ATSG
| $17K | ﹤0.01% |
+800
| New | +$17K |
|
|
LORL
1389
DELISTED
Loral Space and Communications, Inc.
LORL
| $17K | ﹤0.01% |
416
-187
| -31% | -$7.64K |
|
|
PHH
1390
DELISTED
PHH Corporation
PHH
| $17K | ﹤0.01% |
+1,264
| New | +$17K |
|
|
NEFF
1391
DELISTED
Neff Corporation
NEFF
| $17K | ﹤0.01% |
+904
| New | +$17K |
|
|
DCM
1392
DELISTED
NTT DOCOMO, Inc.
DCM
| $17K | ﹤0.01% |
+748
| New | +$17K |
|
1393
Ambev
ABEV
$35.9B
| $16K | ﹤0.01% |
3,094
-8,600
| -74% | -$44.5K |
|
1394
Aegon
AEG
$12.2B
| $16K | ﹤0.01% |
4,168
-8,331
| -67% | -$32K |
|
|
AGEN
1395
Agenus
AGEN
$143M
| $16K | ﹤0.01% |
+216
| New | +$16K |
|
1396
Bank of Hawaii
BOH
$2.7B
| $16K | ﹤0.01% |
+195
| New | +$16K |
|
1397
Century Casinos
CNTY
$76.3M
| $16K | ﹤0.01% |
+2,206
| New | +$16K |
|
1398
Destination XL Group
DXLG
$80.3M
| $16K | ﹤0.01% |
+7,147
| New | +$16K |
|
1399
Group 1 Automotive
GPI
$6.03B
| $16K | ﹤0.01% |
+263
| New | +$16K |
|
1400
iRobot
IRBT
$107M
| $16K | ﹤0.01% |
200
-3,581
| -95% | -$286K |
|