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 | |
|---|---|---|---|---|---|---|
5151
Brookdale Senior Living
BKD
$3.49B
| $94K | ﹤0.01% |
34,745
+4,242
| +14% | +$15.9K |
|
|
CGAU
5152
Centerra Gold
CGAU
$3.58B
| $94K | ﹤0.01% |
18,311
-2,821
| -13% | -$14K |
|
5153
CALL
DTE Energy
DTE
$29.5B
| $94K | ﹤0.01% |
800
-6,300
| -89% | -$714K |
|
5154
Liberty Global Class C
LBTYK
$3.49B
| $94K | ﹤0.01% |
+4,876
| New | +$92.2K |
|
5155
CALL
Momentus
MNTS
$85.1M
| $94K | ﹤0.01% |
10
| – | – |
|
|
NOAH
5156
CALL
Noah Holdings
NOAH
$583M
| $94K | ﹤0.01% |
6,100
-23,300
| -79% | -$340K |
|
5157
PUT
Procore
PCOR
$8.12B
| $94K | ﹤0.01% |
+2,000
| New | +$102K |
|
5158
CALL
Rackspace Technology
RXT
$1.07B
| $94K | ﹤0.01% |
32,200
+16,800
| +109% | +$71K |
|
5159
CALL
Woodside Energy
WDS
$44.4B
| $94K | ﹤0.01% |
3,900
-1,600
| -29% | -$37.9K |
|
5160
CALL
Worthington Enterprises
WOR
$2.74B
| $94K | ﹤0.01% |
3,082
+973
| +46% | +$30.1K |
|
|
SCU
5161
DELISTED
Sculptor Capital Management, Inc. Class A Common Stock
SCU
| $94K | ﹤0.01% |
10,882
+7,182
| +194% | +$68.8K |
|
|
VVNT
5162
PUT
DELISTED
Vivint Smart Home, Inc. Class A Common Stock
VVNT
| $94K | ﹤0.01% |
7,900
+5,400
| +216% | +$48.6K |
|
5163
CALL
CarGurus
CARG
$3.25B
| $93K | ﹤0.01% |
6,700
-5,400
| -45% | -$74K |
|
5164
CareDx
CDNA
$1.97B
| $93K | ﹤0.01% |
8,163
+7,917
| +3,218% | +$117K |
|
5165
CALL
Fusion Fuel Green
HTOO
$8.57M
| $93K | ﹤0.01% |
606
+312
| +106% | +$49K |
|
5166
PUT
MBIA
MBI
$274M
| $93K | ﹤0.01% |
7,300
-89,100
| -92% | -$1.02M |
|
5167
Enviri
NVRI
$624M
| $93K | ﹤0.01% |
14,937
+41
| +0.3% | +$244 |
|
5168
PUT
Oramed Pharmaceuticals
ORMP
$169M
| $93K | ﹤0.01% |
7,800
+3,100
| +66% | +$24.1K |
|
|
SAFE
5169
Safehold
SAFE
$1.13B
| $93K | ﹤0.01% |
+1,951
| New | +$94K |
|
|
TGNA
5170
CALL
DELISTED
TEGNA Inc
TGNA
| $93K | ﹤0.01% |
4,400
+3,300
| +300% | +$66.5K |
|
5171
CALL
Zurn Elkay Water Solutions
ZWS
$8.31B
| $93K | ﹤0.01% |
4,400
+1,800
| +69% | +$42.5K |
|
|
SUNL
5172
CALL
DELISTED
Sunlight Financial Holdings, Inc.
SUNL
| $93K | ﹤0.01% |
3,605
+3,090
| +600% | +$85.5K |
|
5173
PUT
American States Water
AWR
$3.37B
| $92K | ﹤0.01% |
+1,000
| New | +$91.1K |
|
5174
PUT
Brilliant Earth
BRLT
$18M
| $92K | ﹤0.01% |
21,500
+6,100
| +40% | +$36.5K |
|
5175
Clene
CLNN
$64.4M
| $92K | ﹤0.01% |
4,615
-2,006
| -30% | -$46.5K |
|
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.