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 | |
|---|---|---|---|---|---|---|
301
Cemex
CX
$13.6B
| $374K | 0.03% |
44,164
+16,909
| +62% | +$143K |
|
302
ProShares Ultra Financials
UYG
$864M
| $374K | 0.03% |
15,204
+3,810
| +33% | +$93.7K |
|
303
American Eagle Outfitters
AEO
$3.26B
| $373K | 0.03% |
+21,684
| New | +$373K |
|
304
BHP
BHP
$138B
| $372K | 0.03% |
10,266
+8,077
| +369% | +$293K |
|
305
Tapestry
TPR
$21.7B
| $368K | 0.03% |
+10,649
| New | +$368K |
|
|
EGRX
306
DELISTED
Eagle Pharmaceuticals, Inc.
EGRX
| $363K | 0.03% |
+4,495
| New | +$363K |
|
|
HAR
307
DELISTED
Harman International Industries
HAR
| $363K | 0.03% |
3,054
+2,758
| +932% | +$328K |
|
|
RGLS
308
DELISTED
Regulus Therapeutics
RGLS
| $362K | 0.03% |
275
+270
| +5,400% | +$355K |
|
309
Teradata
TDC
$1.99B
| $361K | 0.03% |
9,757
+1,812
| +23% | +$67K |
|
310
Target
TGT
$42.3B
| $361K | 0.03% |
+4,423
| New | +$361K |
|
311
Packaging Corp of America
PKG
$19.8B
| $360K | 0.03% |
5,770
+1,367
| +31% | +$85.3K |
|
|
RDS.A
312
DELISTED
Royal Dutch Shell PLC ADS Class A
RDS.A
| $359K | 0.03% |
+6,300
| New | +$359K |
|
313
Southern Company
SO
$101B
| $358K | 0.03% |
8,557
+3,026
| +55% | +$127K |
|
|
NE
314
DELISTED
Noble Corporation
NE
| $358K | 0.03% |
23,265
+19,279
| +484% | +$297K |
|
315
Post Holdings
POST
$5.88B
| $357K | 0.03% |
+10,118
| New | +$357K |
|
|
ZLTQ
316
DELISTED
ZELTIQ Aesthetics, Inc.
ZLTQ
| $357K | 0.03% |
12,145
+11,101
| +1,063% | +$326K |
|
|
RTI
317
DELISTED
RTI INTL METALS INC(HLDG CO)
RTI
| $352K | 0.03% |
11,193
+2,917
| +35% | +$91.7K |
|
318
F5
FFIV
$18.1B
| $350K | 0.03% |
+2,915
| New | +$350K |
|
|
BITA
319
DELISTED
Bitauto Holdings Limited
BITA
| $350K | 0.03% |
6,865
-1,685
| -20% | -$85.9K |
|
|
BBBY
320
DELISTED
Bed Bath & Beyond Inc
BBBY
| $344K | 0.03% |
+5,000
| New | +$344K |
|
|
CMGE
321
DELISTED
CHINA MOBILE GAMES & ENTMT GRP LTD SPON ADR (CYM)
CMGE
| $338K | 0.03% |
+16,016
| New | +$338K |
|
322
Starbucks
SBUX
$97.1B
| $336K | 0.03% |
6,284
-8,118
| -56% | -$434K |
|
|
DISCK
323
DELISTED
Discovery, Inc. Series C Common Stock
DISCK
| $334K | 0.03% |
10,763
+10,748
| +71,653% | +$334K |
|
324
Labcorp
LH
$23.2B
| $333K | 0.03% |
+3,200
| New | +$333K |
|
325
Air Products & Chemicals
APD
$64.5B
| $332K | 0.03% |
+2,629
| New | +$332K |
|