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 |
Invesco QQQ Trust
QQQ
|
$85.4M |
| 2 |
SPDR Gold Trust
GLD
|
$75.9M |
| 3 |
NVIDIA
NVDA
|
$42.6M |
| 4 |
Netflix
NFLX
|
$41.1M |
| 5 |
iShares MSCI EAFE ETF
EFA
|
$40.5M |
Top Sells
| 1 |
Apple
AAPL
|
$65.7M |
| 2 |
iPath Series B S&P 500 VIX Short-Term Futures ETN
VXX
|
$25.5M |
| 3 |
SPDR S&P 500 ETF Trust
SPY
|
$24.4M |
| 4 |
SPDR Dow Jones Industrial Average ETF Trust
DIA
|
$24.3M |
| 5 |
Broadcom
AVGO
|
$21.3M |
Sector Composition
| 1 | Technology | 15.2% |
| 2 | Consumer Discretionary | 14.52% |
| 3 | Communication Services | 10.57% |
| 4 | Healthcare | 8.15% |
| 5 | Financials | 7.15% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
26
Alphabet (Google) Class A
GOOGL
$2.79T
| $14.1M | 0.02% |
+9,961
| New | +$14.1M |
|
27
Pfizer
PFE
$141B
| $13.9M | 0.02% |
+425,329
| New | +$13.9M |
|
28
Berkshire Hathaway Class B
BRK.B
$1.08T
| $13.9M | 0.02% |
77,667
+77,167
| +15,433% | +$13.8M |
|
29
NextEra Energy, Inc.
NEE
$148B
| $13M | 0.02% |
54,127
+13,457
| +33% | +$3.23M |
|
|
WORK
30
DELISTED
Slack Technologies, Inc.
WORK
| $12.9M | 0.02% |
416,527
+190,689
| +84% | +$5.93M |
|
31
ProShares UltraPro QQQ
TQQQ
$26B
| $12.8M | 0.02% |
130,787
+93,967
| +255% | +$9.18M |
|
32
Boeing
BA
$176B
| $12.3M | 0.02% |
67,309
+67,239
| +96,056% | +$12.3M |
|
33
Wynn Resorts
WYNN
$13.1B
| $12.2M | 0.02% |
164,250
+69,914
| +74% | +$5.21M |
|
34
iShares Russell 2000 ETF
IWM
$66.6B
| $12.2M | 0.02% |
85,178
-65,838
| -44% | -$9.43M |
|
|
B
35
Barrick Mining Corporation
B
$46.3B
| $12M | 0.02% |
+444,087
| New | +$12M |
|
36
Energy Select Sector SPDR Fund
XLE
$27.1B
| $11.8M | 0.02% |
311,827
+311,117
| +43,819% | +$11.8M |
|
37
CVS Health
CVS
$93B
| $11.6M | 0.02% |
178,827
+56,790
| +47% | +$3.69M |
|
|
TWTR
38
DELISTED
Twitter, Inc.
TWTR
| $11.3M | 0.02% |
378,094
-280,136
| -43% | -$8.34M |
|
39
Bristol-Myers Squibb
BMY
$96.7B
| $11.1M | 0.02% |
189,269
-166,733
| -47% | -$9.8M |
|
|
TIF
40
DELISTED
Tiffany & Co.
TIF
| $11M | 0.02% |
90,250
+14,598
| +19% | +$1.78M |
|
41
Spotify
SPOT
$143B
| $10.7M | 0.02% |
41,530
+5,204
| +14% | +$1.34M |
|
42
Morgan Stanley
MS
$237B
| $9.73M | 0.02% |
+201,509
| New | +$9.73M |
|
43
Peloton Interactive
PTON
$3.1B
| $9.66M | 0.02% |
167,235
-24,931
| -13% | -$1.44M |
|
44
Direxion Daily Small Cap Bull 3x Shares
TNA
$2.13B
| $9.63M | 0.02% |
351,482
+323,567
| +1,159% | +$8.86M |
|
45
Royal Caribbean
RCL
$96.4B
| $9.42M | 0.02% |
187,297
+119,533
| +176% | +$6.01M |
|
46
iShares Silver Trust
SLV
$20.2B
| $9.42M | 0.02% |
553,553
-1,236,339
| -69% | -$21M |
|
47
iShares US Real Estate ETF
IYR
$3.7B
| $9.4M | 0.02% |
119,316
+119,016
| +39,672% | +$9.38M |
|
48
Sea Limited
SE
$107B
| $8.93M | 0.01% |
83,255
+27,723
| +50% | +$2.97M |
|
49
Caterpillar
CAT
$194B
| $8.7M | 0.01% |
+68,807
| New | +$8.7M |
|
50
Expedia Group
EXPE
$26.3B
| $8.51M | 0.01% |
103,495
-53,360
| -34% | -$4.39M |
|