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 | |
|---|---|---|---|---|---|---|
451
Bank OZK
OZK
$5.92B
| $383K | 0.02% |
+8,185
| New | +$383K |
|
|
PERY
452
DELISTED
Perry Ellis International Inc
PERY
| $383K | 0.02% |
19,718
+18,448
| +1,453% | +$358K |
|
453
JB Hunt Transport Services
JBHT
$13.8B
| $380K | 0.02% |
4,164
-3,448
| -45% | -$315K |
|
454
Lincoln National
LNC
$7.9B
| $380K | 0.02% |
5,623
-13,541
| -71% | -$915K |
|
455
Potbelly
PBPB
$386M
| $380K | 0.02% |
33,075
+11,203
| +51% | +$129K |
|
456
Tenaris
TS
$18.2B
| $377K | 0.02% |
+12,129
| New | +$377K |
|
|
CLVS
457
DELISTED
Clovis Oncology, Inc.
CLVS
| $377K | 0.02% |
4,030
-37,343
| -90% | -$3.49M |
|
|
DYN
458
DELISTED
Dynegy, Inc.
DYN
| $374K | 0.02% |
+45,244
| New | +$374K |
|
459
Direxion Daily FTSE China Bull 3X Shares
YINN
$1.15B
| $373K | 0.02% |
855
+487
| +132% | +$212K |
|
460
Sprouts Farmers Market
SFM
$13.6B
| $372K | 0.02% |
16,453
-120,276
| -88% | -$2.72M |
|
461
Vornado Realty Trust
VNO
$7.81B
| $372K | 0.02% |
+4,902
| New | +$372K |
|
|
SAVE
462
DELISTED
Spirit Airlines, Inc.
SAVE
| $372K | 0.02% |
+7,212
| New | +$372K |
|
463
Nelnet
NNI
$4.58B
| $371K | 0.02% |
7,904
-11,722
| -60% | -$550K |
|
464
Vanguard FTSE Emerging Markets ETF
VWO
$98.5B
| $371K | 0.02% |
9,104
-10,913
| -55% | -$445K |
|
465
OFG Bancorp
OFG
$1.97B
| $369K | 0.02% |
36,942
-21,895
| -37% | -$219K |
|
|
AHGP
466
DELISTED
Alliance Holdings GP,L.P.
AHGP
| $366K | 0.02% |
15,471
-124
| -0.8% | -$2.93K |
|
467
ProShares Ultra Financials
UYG
$871M
| $364K | 0.02% |
10,518
+4,857
| +86% | +$168K |
|
468
Leidos
LDOS
$22.9B
| $361K | 0.02% |
6,995
+5,062
| +262% | +$261K |
|
469
Zurn Elkay Water Solutions
ZWS
$7.82B
| $361K | 0.02% |
+32,271
| New | +$361K |
|
|
STOR
470
DELISTED
STORE Capital Corporation
STOR
| $358K | 0.02% |
15,958
+10,446
| +190% | +$234K |
|
471
Telefônica Brasil
VIV
$19.9B
| $353K | 0.02% |
+26,221
| New | +$353K |
|
472
Synchronoss Technologies
SNCR
$65.2M
| $350K | 0.02% |
2,368
+1,886
| +391% | +$279K |
|
473
Coterra Energy
CTRA
$18.2B
| $349K | 0.02% |
13,947
-63,530
| -82% | -$1.59M |
|
474
Pure Storage
PSTG
$26B
| $348K | 0.02% |
27,184
+9,401
| +53% | +$120K |
|
|
ARRY
475
DELISTED
Array Biopharma Inc
ARRY
| $348K | 0.02% |
41,613
+40,378
| +3,269% | +$338K |
|