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
|
+$54.6M |
| 2 |
iShares Russell 2000 ETF
IWM
|
+$52.5M |
| 3 |
SPDR S&P 500 ETF Trust
SPY
|
+$40.9M |
| 4 |
Apple
AAPL
|
+$16.5M |
| 5 |
Visa
V
|
+$12M |
Top Sells
| 1 |
Amazon
AMZN
|
+$98.7M |
| 2 |
Meta Platforms (Facebook)
META
|
+$70.7M |
| 3 |
Invesco QQQ Trust
QQQ
|
+$33.4M |
| 4 |
Goldman Sachs
GS
|
+$30.2M |
| 5 |
Boeing
BA
|
+$26.5M |
Sector Composition
| 1 | Communication Services | 14.71% |
| 2 | Consumer Discretionary | 14.32% |
| 3 | Technology | 11.86% |
| 4 | Financials | 7.38% |
| 5 | Industrials | 6.44% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
501
Snap-on
SNA
$16.8B
| $296K | ﹤0.01% |
+2,044
| New | +$296K |
|
502
Honeywell
HON
$136B
| $295K | ﹤0.01% |
+2,235
| New | +$295K |
|
503
WisdomTree India Earnings Fund ETF
EPI
$2.9B
| $294K | ﹤0.01% |
11,867
-11,032
| -48% | -$273K |
|
504
Prestige Consumer Healthcare
PBH
$3.25B
| $294K | ﹤0.01% |
9,534
+4,294
| +82% | +$132K |
|
505
Patterson-UTI
PTEN
$2.12B
| $294K | ﹤0.01% |
28,496
+13,053
| +85% | +$135K |
|
506
Banc of California
BANC
$2.65B
| $293K | ﹤0.01% |
22,054
+19,660
| +821% | +$261K |
|
|
GWR
507
DELISTED
Genesee & Wyoming Inc.
GWR
| $292K | ﹤0.01% |
+3,946
| New | +$292K |
|
|
HOME
508
DELISTED
At Home Group Inc.
HOME
| $291K | ﹤0.01% |
15,612
+13,591
| +672% | +$253K |
|
509
Ryder
R
$7.57B
| $290K | ﹤0.01% |
6,033
+5,377
| +820% | +$258K |
|
|
TELL
510
DELISTED
Tellurian Inc.
TELL
| $287K | ﹤0.01% |
41,302
-39,954
| -49% | -$278K |
|
|
KEM
511
DELISTED
KEMET Corporation
KEM
| $286K | ﹤0.01% |
16,355
-3,007
| -16% | -$52.6K |
|
|
IPHI
512
DELISTED
INPHI CORPORATION
IPHI
| $285K | ﹤0.01% |
8,884
+7,083
| +393% | +$227K |
|
513
Thermo Fisher Scientific
TMO
$182B
| $283K | ﹤0.01% |
+1,269
| New | +$283K |
|
514
TSMC
TSM
$1.3T
| $283K | ﹤0.01% |
+7,694
| New | +$283K |
|
515
British American Tobacco
BTI
$123B
| $282K | ﹤0.01% |
+8,865
| New | +$282K |
|
516
Conduent
CNDT
$442M
| $282K | ﹤0.01% |
+26,533
| New | +$282K |
|
517
Coty
COTY
$3.71B
| $281K | ﹤0.01% |
42,976
+39,553
| +1,156% | +$259K |
|
|
QVCGA
518
QVC Group, Inc. Series A Common Stock
QVCGA
$72.7M
| $281K | ﹤0.01% |
+297
| New | +$281K |
|
|
QIWI
519
DELISTED
QIWI PLC
QIWI
| $281K | ﹤0.01% |
19,917
-13,206
| -40% | -$186K |
|
|
PRFT
520
DELISTED
Perficient Inc
PRFT
| $280K | ﹤0.01% |
+12,583
| New | +$280K |
|
521
La-Z-Boy
LZB
$1.45B
| $279K | ﹤0.01% |
+10,099
| New | +$279K |
|
|
COHR
522
DELISTED
Coherent Inc
COHR
| $278K | ﹤0.01% |
+2,636
| New | +$278K |
|
|
SIVB
523
DELISTED
SVB Financial Group
SIVB
| $278K | ﹤0.01% |
1,464
+692
| +90% | +$131K |
|
524
DigitalBridge
DBRG
$2.05B
| $276K | ﹤0.01% |
14,761
+10,791
| +272% | +$202K |
|
525
Pure Storage
PSTG
$25.9B
| $276K | ﹤0.01% |
+17,221
| New | +$276K |
|