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
| Rank | Stock | Value |
|---|---|---|
| 1 |
Amazon
AMZN
|
+$170M |
| 2 |
Invesco QQQ Trust
QQQ
|
+$71.3M |
| 3 |
AT&T
T
|
+$44.2M |
| 4 |
Meta Platforms (Facebook)
META
|
+$37.1M |
| 5 |
iShares MSCI Emerging Markets ETF
EEM
|
+$34.4M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Microsoft
MSFT
|
+$94.3M |
| 2 |
JPMorgan Chase
JPM
|
+$68.2M |
| 3 |
Citigroup
C
|
+$62.8M |
| 4 |
Berkshire Hathaway Class B
BRK.B
|
+$50.9M |
| 5 |
SPDR Gold Trust
GLD
|
+$46.3M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Consumer Discretionary | 0.38% |
| 2 | Technology | 0.35% |
| 3 | Communication Services | 0.24% |
| 4 | Healthcare | 0.2% |
| 5 | Consumer Staples | 0.13% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
151
CALL
Uber
UBER
$144B
| $94.2M | 0.1% |
3,808,900
+30,100
| +0.8% | +$824K |
|
152
CALL
State Street SPDR Portfolio Short Term Treasury ETF
SPTS
$6.06B
| $93.5M | 0.1% |
713,700
+39,300
| +6% | +$1.14M |
|
153
CALL
AbbVie
ABBV
$453B
| $93.2M | 0.1% |
576,900
+134,300
| +30% | +$20.6M |
|
154
CALL
ARK Space & Defense Innovation ETF
ARKX
$830M
| $93.1M | 0.1% |
3,126,500
+445,500
| +17% | +$5.72M |
|
155
PUT
Johnson & Johnson
JNJ
$617B
| $93M | 0.1% |
526,500
-79,800
| -13% | -$13.8M |
|
156
CALL
iShares MSCI Australia ETF
EWA
$1.35B
| $91.3M | 0.1% |
3,127,700
-673,700
| -18% | -$14.6M |
|
157
PUT
Snowflake
SNOW
$92.6B
| $90.9M | 0.1% |
633,600
-65,600
| -9% | -$10M |
|
158
PUT
Intel
INTC
$531B
| $90.6M | 0.1% |
3,429,700
-540,200
| -14% | -$15M |
|
159
CALL
Freeport-McMoran
FCX
$93B
| $90.4M | 0.1% |
2,379,600
-958,900
| -29% | -$33.5M |
|
160
PUT
Applied Materials
AMAT
$445B
| $89.9M | 0.1% |
922,700
+325,100
| +54% | +$31.2M |
|
|
161
CALL
Applied Materials
AMAT
$445B
| $89.2M | 0.1% |
916,200
+421,700
| +85% | +$40.5M |
|
162
CALL
Oracle
ORCL
$362B
| $88.9M | 0.1% |
1,087,900
-381,100
| -26% | -$29M |
|
163
CALL
Vanguard S&P 500 ETF
VOO
$982B
| $88.7M | 0.1% |
381,600
-148,400
| -28% | -$52.4M |
|
164
PUT
General Motors
GM
$74.3B
| $88.6M | 0.1% |
2,634,800
+208,900
| +9% | +$7.72M |
|
|
165
PUT
Oracle
ORCL
$362B
| $88.6M | 0.1% |
1,083,800
+383,800
| +55% | +$29.2M |
|
166
PUT
Eli Lilly
LLY
$1.04T
| $88.2M | 0.1% |
241,200
+32,500
| +16% | +$11.5M |
|
167
CALL
Devon Energy
DVN
$51.6B
| $87.3M | 0.1% |
1,419,000
+601,800
| +74% | +$41M |
|
168
PUT
Airbnb
ABNB
$84.1B
| $87.2M | 0.09% |
1,019,600
+104,700
| +11% | +$10.6M |
|
169
PUT
lululemon athletica
LULU
$12.9B
| $87.1M | 0.09% |
271,900
+79,400
| +41% | +$26.1M |
|
170
PUT
JD.com
JD
$40.9B
| $86.2M | 0.09% |
1,536,000
+455,800
| +42% | +$22.9M |
|
171
CALL
Ford
F
$57.3B
| $85.6M | 0.09% |
7,360,700
-1,998,900
| -21% | -$25.7M |
|
172
CALL
Deere & Co
DE
$163B
| $85.5M | 0.09% |
199,400
+32,300
| +19% | +$13.1M |
|
173
CALL
Thermo Fisher Scientific
TMO
$194B
| $85M | 0.09% |
154,300
+25,800
| +20% | +$13.7M |
|
|
174
PUT
Uber
UBER
$144B
| $84.4M | 0.09% |
3,410,900
+884,200
| +35% | +$24.2M |
|
175
PUT
American Airlines Group
AAL
$10.1B
| $83.4M | 0.09% |
6,553,200
-651,300
| -9% | -$8.83M |
|
Similar funds
Simplex Trading's Q4 2022 Portfolio in Review
As of Q4 2022, Simplex Trading held 11,206 positions worth $91.9B, up 3.9% from $88.5B the previous quarter. Its ten largest holdings account for 34% of the portfolio.
Simplex Trading's Q4 2022 filing shows 1,219 new, 3,365 increased, 4,370 reduced and 1,942 closed positions. Its largest new stake was iShares MSCI Emerging Markets ETF: 932,756 shares worth $35.4M. The largest sale was Microsoft, an estimated $94.3M.
By sector, the portfolio is most concentrated in Consumer Discretionary at 0.38% of assets, up from 0.3% a quarter earlier, followed by Technology and Communication Services.
- Simplex Trading's largest Q4 2022 buy was iShares MSCI Emerging Markets ETF: 932,756 shares worth $35.4M.
- Simplex Trading added most to Amazon in Q4 2022, an estimated $170M increase.
- Simplex Trading's biggest Q4 2022 reduction was Microsoft, cutting an estimated $94.3M.
- Simplex Trading fully exited JPMorgan Chase in Q4 2022, selling an estimated $68.2M.
- Simplex Trading's ten largest holdings make up 34% of its $91.9B portfolio in Q4 2022.
- Simplex Trading opened 1,219 new positions and closed 1,942 in Q4 2022.
- Simplex Trading's portfolio value rose 3.9% quarter-over-quarter to $91.9B.
Based on Simplex Trading's 13F filing for Q4 2022, filed 2 Feb 2023.