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 |
Apple
AAPL
|
$32.1M |
| 2 |
Bausch Health
BHC
|
$18.4M |
| 3 |
GMCR
KEURIG GREEN MTN INC
GMCR
|
$17.9M |
| 4 |
Chipotle Mexican Grill
CMG
|
$14.9M |
| 5 |
Amazon
AMZN
|
$13M |
Top Sells
| 1 |
iShares Russell 2000 ETF
IWM
|
$27.5M |
| 2 |
SPDR Dow Jones Industrial Average ETF Trust
DIA
|
$13.7M |
| 3 |
iShares 20+ Year Treasury Bond ETF
TLT
|
$12.1M |
| 4 |
Netflix
NFLX
|
$10.7M |
| 5 |
iShares MSCI Emerging Markets ETF
EEM
|
$10.7M |
Sector Composition
| 1 | Consumer Discretionary | 17.29% |
| 2 | Healthcare | 13.74% |
| 3 | Technology | 12.76% |
| 4 | Communication Services | 12.12% |
| 5 | Industrials | 10.49% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
|
1
Apple
AAPL
$3.45T
| $36.1M | 2.83% | 343,422 +304,521 | +783% | +$32.1M |
|
2
Booking.com
BKNG
$181B
| $20.6M | 1.61% | 16,169 +7,843 | +94% | +$10M |
|
|
3
Bausch Health
BHC
$2.74B
| $20.2M | 1.58% | 198,799 +180,631 | +994% | +$18.4M |
|
|
GMCR
4
DELISTED
KEURIG GREEN MTN INC
GMCR
| $17.9M | 1.4% | +198,479 | New | +$17.9M |
|
|
5
Chipotle Mexican Grill
CMG
$56.5B
| $14.9M | 1.16% | +30,963 | New | +$14.9M |
|
6
Walt Disney
DIS
$213B
| $14.5M | 1.14% | 138,261 +2,188 | +2% | +$230K |
|
7
Alphabet (Google) Class C
GOOG
$2.58T
| $13.4M | 1.05% | 17,682 -7,901 | -31% | -$6M |
|
8
Alibaba
BABA
$322B
| $13.3M | 1.04% | 163,219 +50,593 | +45% | +$4.11M |
|
|
9
Amazon
AMZN
$2.44T
| $13M | 1.02% | +19,275 | New | +$13M |
|
10
Gilead Sciences
GILD
$140B
| $9.19M | 0.72% | 90,841 -15,221 | -14% | -$1.54M |
|
11
American Airlines Group
AAL
$8.82B
| $8.8M | 0.69% | 207,873 +200,706 | +2,800% | +$8.5M |
|
12
NXP Semiconductors
NXPI
$59.2B
| $8.78M | 0.69% | 104,172 +29,523 | +40% | +$2.49M |
|
13
Meta Platforms (Facebook)
META
$1.86T
| $8.15M | 0.64% | 77,873 +75,873 | +3,794% | +$7.94M |
|
14
Viatris
VTRS
$12.3B
| $8M | 0.63% | 147,919 +96,692 | +189% | +$5.23M |
|
|
JAH
15
DELISTED
JARDEN CORPORATION
JAH
| $7.51M | 0.59% | +131,438 | New | +$7.51M |
|
|
QIHU
16
DELISTED
QIHOO 360 TECHNOLOGY CO LTD ADS RPSTG 3 CL A SHS
QIHU
| $7.34M | 0.57% | 100,846 +59,633 | +145% | +$4.34M |
|
17
GE Aerospace
GE
$292B
| $7.26M | 0.57% | 233,213 +176,177 | +309% | +$5.49M |
|
|
TWTR
18
DELISTED
Twitter, Inc.
TWTR
| $7.03M | 0.55% | 303,623 +235,120 | +343% | +$5.44M |
|
19
Goldman Sachs
GS
$226B
| $7M | 0.55% | 38,823 +8,716 | +29% | +$1.57M |
|
20
Pfizer
PFE
$141B
| $6.9M | 0.54% | 213,884 +209,680 | +4,988% | +$6.77M |
|
21
Wynn Resorts
WYNN
$13.2B
| $6.6M | 0.52% | 95,430 +54,939 | +136% | +$3.8M |
|
22
Citigroup
C
$178B
| $6.47M | 0.51% | 124,994 -39,191 | -24% | -$2.03M |
|
|
23
Alphabet (Google) Class A
GOOGL
$2.57T
| $5.52M | 0.43% | +7,100 | New | +$5.52M |
|
24
American International
AIG
$45.1B
| $5.51M | 0.43% | 88,969 -224 | -0.3% | -$13.9K |
|
25
Philip Morris
PM
$260B
| $5.41M | 0.42% | +61,525 | New | +$5.41M |
|