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
|
$41.4M |
| 2 |
Berkshire Hathaway Class B
BRK.B
|
$12.3M |
| 3 |
SPDR S&P 500 ETF Trust
SPY
|
$9.89M |
| 4 |
Alibaba
BABA
|
$9.66M |
| 5 |
Intel
INTC
|
$9.11M |
Top Sells
| 1 |
Apple
AAPL
|
$36.8M |
| 2 |
Gilead Sciences
GILD
|
$31.2M |
| 3 |
Booking.com
BKNG
|
$29M |
| 4 |
Amazon
AMZN
|
$25.6M |
| 5 |
Baidu
BIDU
|
$12.9M |
Sector Composition
| 1 | Communication Services | 13.31% |
| 2 | Consumer Discretionary | 13.07% |
| 3 | Healthcare | 12.41% |
| 4 | Technology | 11.91% |
| 5 | Financials | 8.28% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
301
RH
RH
$4.7B
| $319K | 0.04% |
3,223
-3,033
| -48% | -$300K |
|
|
YELL
302
DELISTED
Yellow Corporation Common Stock
YELL
| $319K | 0.04% |
17,777
-15,843
| -47% | -$284K |
|
303
Cirrus Logic
CRUS
$5.94B
| $318K | 0.04% |
9,562
-15,381
| -62% | -$512K |
|
304
Newmont
NEM
$83.7B
| $318K | 0.04% |
+14,693
| New | +$318K |
|
|
NUVA
305
DELISTED
NuVasive, Inc.
NUVA
| $317K | 0.04% |
+6,901
| New | +$317K |
|
|
LCI
306
DELISTED
Lannett Company, Inc.
LCI
| $316K | 0.04% |
1,169
+1,017
| +669% | +$275K |
|
307
MetLife
MET
$52.9B
| $315K | 0.04% |
+7,004
| New | +$315K |
|
308
Cigna
CI
$81.5B
| $313K | 0.04% |
+2,420
| New | +$313K |
|
|
HES
309
DELISTED
Hess
HES
| $311K | 0.04% |
4,596
-7,201
| -61% | -$487K |
|
|
BGC
310
DELISTED
General Cable Corporation
BGC
| $311K | 0.04% |
18,092
+4,594
| +34% | +$79K |
|
|
POT
311
DELISTED
Potash Corp Of Saskatchewan
POT
| $311K | 0.04% |
9,662
+706
| +8% | +$22.7K |
|
312
Carlyle Group
CG
$23.1B
| $310K | 0.04% |
+11,446
| New | +$310K |
|
313
Zions Bancorporation
ZION
$8.34B
| $307K | 0.04% |
11,384
+9,322
| +452% | +$251K |
|
314
McCormick & Company Non-Voting
MKC
$19B
| $306K | 0.04% |
7,938
+746
| +10% | +$28.8K |
|
|
QEP
315
DELISTED
QEP RESOURCES, INC.
QEP
| $305K | 0.04% |
14,661
+11,317
| +338% | +$235K |
|
316
Golar LNG
GLNG
$4.52B
| $304K | 0.04% |
9,137
-14,337
| -61% | -$477K |
|
317
H&R Block
HRB
$6.85B
| $302K | 0.04% |
9,419
+8,259
| +712% | +$265K |
|
318
BJ's Restaurants
BJRI
$742M
| $300K | 0.03% |
+5,947
| New | +$300K |
|
|
BOBE
319
DELISTED
Bob Evans Farms, Inc.
BOBE
| $300K | 0.03% |
+6,493
| New | +$300K |
|
320
Baytex Energy
BTE
$1.67B
| $299K | 0.03% |
18,944
-2,177
| -10% | -$34.4K |
|
321
Cisco
CSCO
$264B
| $299K | 0.03% |
+10,882
| New | +$299K |
|
|
INFN
322
DELISTED
Infinera Corporation Common Stock
INFN
| $299K | 0.03% |
+15,237
| New | +$299K |
|
323
E.W. Scripps
SSP
$261M
| $297K | 0.03% |
+11,795
| New | +$297K |
|
324
Yum! Brands
YUM
$40.1B
| $297K | 0.03% |
5,252
-21,896
| -81% | -$1.24M |
|
325
Zoetis
ZTS
$67.9B
| $297K | 0.03% |
+6,419
| New | +$297K |
|