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 | |
|---|---|---|---|---|---|---|
|
PARA
1026
DELISTED
Paramount Global Class B
PARA
| $7.1M | 0.01% |
420,414
-497,038
| -54% | -$9.14M |
|
1027
CALL
GoDaddy
GDDY
$11.6B
| $7.08M | 0.01% |
94,700
+50,800
| +116% | +$3.81M |
|
1028
PUT
Sherwin-Williams
SHW
$76.6B
| $7.07M | 0.01% |
29,800
-3,400
| -10% | -$786K |
|
1029
CALL
Viatris
VTRS
$20.1B
| $7.07M | 0.01% |
635,200
-26,200
| -4% | -$274K |
|
1030
CALL
Baxter International
BAX
$11.2B
| $7.06M | 0.01% |
138,600
+36,700
| +36% | +$1.97M |
|
1031
CALL
Cadence Design Systems
CDNS
$91.1B
| $7.05M | 0.01% |
43,900
+6,900
| +19% | +$1.1M |
|
|
NVO
1032
PUT
Novo Nordisk
NVO
$213B
| $7.05M | 0.01% |
104,200
-57,400
| -36% | -$3.37M |
|
1033
PUT
Novavax
NVAX
$1.29B
| $7.04M | 0.01% |
685,400
+445,200
| +185% | +$7.86M |
|
1034
PUT
Franco-Nevada
FNV
$41.3B
| $7.04M | 0.01% |
51,600
+28,600
| +124% | +$3.78M |
|
|
JWN
1035
CALL
DELISTED
Nordstrom
JWN
| $7.04M | 0.01% |
436,100
+33,900
| +8% | +$649K |
|
1036
PUT
Ares Capital
ARCC
$13.4B
| $7.03M | 0.01% |
380,600
+303,500
| +394% | +$5.7M |
|
1037
PUT
Nutanix
NTNX
$14.2B
| $7.01M | 0.01% |
269,000
-27,100
| -9% | -$740K |
|
1038
PUT
XPeng
XPEV
$12.2B
| $6.97M | 0.01% |
701,600
+178,300
| +34% | +$1.61M |
|
1039
CALL
Dominion Energy
D
$62.8B
| $6.96M | 0.01% |
113,600
+4,800
| +4% | +$301K |
|
1040
CALL
Pultegroup
PHM
$23.7B
| $6.93M | 0.01% |
152,300
+99,400
| +188% | +$4.19M |
|
1041
CALL
UBS Group
UBS
$169B
| $6.93M | 0.01% |
371,000
+171,100
| +86% | +$2.91M |
|
1042
CALL
Ollie's Bargain Outlet
OLLI
$3.94B
| $6.9M | 0.01% |
147,400
+120,300
| +444% | +$6.49M |
|
1043
CALL
Trip.com Group
TCOM
$27.1B
| $6.88M | 0.01% |
199,900
-154,900
| -44% | -$4.45M |
|
1044
CALL
Agilent Technologies
A
$39.5B
| $6.87M | 0.01% |
45,900
-14,900
| -25% | -$2.13M |
|
1045
PUT
eBay
EBAY
$48.5B
| $6.85M | 0.01% |
165,300
-341,200
| -67% | -$14.1M |
|
1046
PUT
Dillards
DDS
$8.76B
| $6.85M | 0.01% |
21,700
-4,400
| -17% | -$1.43M |
|
1047
PUT
Equity Residential
EQR
$25.6B
| $6.85M | 0.01% |
116,100
+11,600
| +11% | +$726K |
|
1048
CALL
Celsius Holdings
CELH
$6.95B
| $6.83M | 0.01% |
196,800
-52,800
| -21% | -$1.72M |
|
1049
CALL
Deckers Outdoor
DECK
$13.4B
| $6.83M | 0.01% |
102,600
+60,000
| +141% | +$3.63M |
|
1050
CALL
Henry Schein
HSIC
$9.63B
| $6.82M | 0.01% |
85,400
+72,500
| +562% | +$5.49M |
|
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.