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 | |
|---|---|---|---|---|---|---|
801
First Solar
FSLR
$22B
| $11.2M | 0.01% |
74,516
-12,819
| -15% | -$1.9M |
|
802
PUT
Teladoc Health
TDOC
$1.57B
| $11.1M | 0.01% |
468,800
+15,100
| +3% | +$407K |
|
803
CALL
EPAM Systems
EPAM
$4.45B
| $11.1M | 0.01% |
33,800
-78,700
| -70% | -$26.8M |
|
804
PUT
Deckers Outdoor
DECK
$13.6B
| $11.1M | 0.01% |
166,200
+127,200
| +326% | +$7.7M |
|
805
VF Corp
VFC
$6.45B
| $11M | 0.01% |
398,358
+369,105
| +1,262% | +$10.8M |
|
806
CALL
Invesco DB Base Metals Fund
DBB
$306M
| $11M | 0.01% |
548,900
-70,200
| -11% | -$1.34M |
|
807
PUT
Scorpio Tankers
STNG
$3.94B
| $11M | 0.01% |
204,500
+81,700
| +67% | +$4.08M |
|
|
P
808
PUT
Everpure Inc
P
$24.8B
| $11M | 0.01% |
410,400
+161,700
| +65% | +$4.7M |
|
809
PUT
Li Auto
LI
$12.1B
| $11M | 0.01% |
537,700
-229,500
| -30% | -$4.36M |
|
810
PUT
Wolfspeed
WOLF
$1.34B
| $10.9M | 0.01% |
158,300
-43,500
| -22% | -$3.86M |
|
|
MPT
811
CALL
Medical Properties Trust
MPT
$2.87B
| $10.9M | 0.01% |
980,100
+367,600
| +60% | +$4.27M |
|
812
CALL
Tilray
TLRY
$486M
| $10.9M | 0.01% |
405,850
+92,230
| +29% | +$3.23M |
|
813
PUT
Stryker
SYK
$121B
| $10.9M | 0.01% |
44,500
+2,100
| +5% | +$477K |
|
814
CALL
Flex
FLEX
$46.8B
| $10.9M | 0.01% |
671,860
-69,004
| -9% | -$1.04M |
|
815
Qfin Holdings
QFIN
$1.59B
| $10.8M | 0.01% |
532,474
+113,457
| +27% | +$1.68M |
|
816
Estee Lauder
EL
$28.6B
| $10.8M | 0.01% |
+43,556
| New | +$9.73M |
|
817
CALL
DXC Technology
DXC
$1.49B
| $10.8M | 0.01% |
407,100
+297,300
| +271% | +$8.27M |
|
818
CALL
SAP
SAP
$171B
| $10.7M | 0.01% |
103,700
+22,800
| +28% | +$2.28M |
|
819
CALL
Norfolk Southern
NSC
$77.9B
| $10.7M | 0.01% |
43,400
+20,000
| +85% | +$4.73M |
|
820
United States Oil Fund
USO
$2.55B
| $10.7M | 0.01% |
+152,533
| New | +$10.7M |
|
821
CALL
Cenovus Energy
CVE
$55.8B
| $10.7M | 0.01% |
549,800
-235,100
| -30% | -$4.51M |
|
822
PUT
iPath Series B S&P 500 VIX Short-Term Futures ETN
VXX
$166M
| $10.6M | 0.01% |
47,875
-25,344
| -35% | -$6.94M |
|
823
CALL
Willis Towers Watson
WTW
$27B
| $10.6M | 0.01% |
43,500
+23,300
| +115% | +$5.32M |
|
824
CALL
WIX.com
WIX
$2.07B
| $10.6M | 0.01% |
137,600
+107,500
| +357% | +$8.68M |
|
|
825
CALL
Wolfspeed
WOLF
$1.34B
| $10.5M | 0.01% |
152,800
-2,200
| -1% | -$195K |
|
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.