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 | |
|---|---|---|---|---|---|---|
|
TWX
26
DELISTED
Time Warner Inc
TWX
| $5.35M | 0.42% |
82,759
+70,565
| +579% | +$4.56M |
|
27
McDonald's
MCD
$226B
| $5.12M | 0.4% |
+43,332
| New | +$5.12M |
|
|
CELG
28
DELISTED
Celgene Corp
CELG
| $5.02M | 0.39% |
41,943
-9,706
| -19% | -$1.16M |
|
|
AGN
29
DELISTED
Allergan plc
AGN
| $4.8M | 0.38% |
+15,344
| New | +$4.8M |
|
|
PCP
30
DELISTED
PRECISION CASTPARTS CORP
PCP
| $4.66M | 0.37% |
20,090
+4,414
| +28% | +$1.02M |
|
31
iShares China Large-Cap ETF
FXI
$6.65B
| $4.59M | 0.36% |
130,018
+120,737
| +1,301% | +$4.26M |
|
32
Boeing
BA
$176B
| $4.25M | 0.33% |
29,422
+26,662
| +966% | +$3.85M |
|
33
Berkshire Hathaway Class B
BRK.B
$1.08T
| $4.13M | 0.32% |
31,286
-14,547
| -32% | -$1.92M |
|
34
Visa
V
$681B
| $4.02M | 0.31% |
51,812
+20,441
| +65% | +$1.59M |
|
|
TWC
35
DELISTED
TIME WARNER CABLE INC NEW COM STK
TWC
| $3.97M | 0.31% |
+21,385
| New | +$3.97M |
|
36
iShares iBoxx $ High Yield Corporate Bond ETF
HYG
$17.7B
| $3.96M | 0.31% |
49,108
-14,896
| -23% | -$1.2M |
|
|
37
SPDR Dow Jones Industrial Average ETF Trust
DIA
$39.7B
| $3.78M | 0.3% |
21,726
-78,743
| -78% | -$13.7M |
|
38
Deere & Co
DE
$127B
| $3.67M | 0.29% |
+48,071
| New | +$3.67M |
|
39
TripAdvisor
TRIP
$2B
| $3.64M | 0.28% |
42,658
+40,707
| +2,086% | +$3.47M |
|
40
Direxion Daily Small Cap Bull 3x Shares
TNA
$2.13B
| $3.57M | 0.28% |
56,252
+29,200
| +108% | +$1.85M |
|
41
Signet Jewelers
SIG
$3.65B
| $3.56M | 0.28% |
28,811
+28,127
| +4,112% | +$3.48M |
|
42
Baidu
BIDU
$33.1B
| $3.07M | 0.24% |
+16,219
| New | +$3.07M |
|
|
MJN
43
DELISTED
Mead Johnson Nutrition Company
MJN
| $3M | 0.24% |
38,041
+28,686
| +307% | +$2.26M |
|
44
VanEck Gold Miners ETF
GDX
$19.6B
| $2.99M | 0.23% |
218,081
+33,089
| +18% | +$454K |
|
45
Phillips 66
PSX
$52.8B
| $2.97M | 0.23% |
+36,302
| New | +$2.97M |
|
46
AutoZone
AZO
$70.1B
| $2.93M | 0.23% |
3,948
+2,785
| +239% | +$2.07M |
|
47
ConocoPhillips
COP
$118B
| $2.92M | 0.23% |
62,472
+10,685
| +21% | +$499K |
|
|
PNRA
48
DELISTED
Panera Bread Co
PNRA
| $2.83M | 0.22% |
14,511
+3,502
| +32% | +$682K |
|
49
ProShares UltraShort S&P500
SDS
$447M
| $2.7M | 0.21% |
135,247
+120,561
| +821% | +$2.4M |
|
50
SPDR S&P Oil & Gas Exploration & Production ETF
XOP
$1.86B
| $2.68M | 0.21% |
+88,609
| New | +$2.68M |
|