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 | |
|---|---|---|---|---|---|---|
|
VRNA
1701
CALL
DELISTED
Verona Pharma
VRNA
| $2.49M | ﹤0.01% |
95,200
+87,700
| +1,169% | +$1.17M |
|
1702
State Street Health Care Select Sector SPDR ETF
XLV
$42.1B
| $2.48M | ﹤0.01% |
18,285
-23,862
| -57% | -$3.16M |
|
|
GRMN
1703
PUT
Garmin
GRMN
$46.9B
| $2.47M | ﹤0.01% |
26,800
-60,200
| -69% | -$5.32M |
|
1704
CALL
Helmerich & Payne
HP
$3.53B
| $2.47M | ﹤0.01% |
49,900
+18,500
| +59% | +$881K |
|
1705
PUT
ScottsMiracle-Gro
SMG
$4.03B
| $2.47M | ﹤0.01% |
50,900
+12,600
| +33% | +$631K |
|
1706
CALL
Sprott Uranium Miners ETF
URNM
$1.78B
| $2.47M | ﹤0.01% |
77,900
-48,700
| -38% | -$1.59M |
|
|
HOLX
1707
CALL
DELISTED
Hologic
HOLX
| $2.47M | ﹤0.01% |
33,000
-15,500
| -32% | -$1.1M |
|
1708
CALL
State Street
STT
$50.9B
| $2.47M | ﹤0.01% |
31,800
-12,000
| -27% | -$884K |
|
1709
PUT
Envista
NVST
$4.28B
| $2.46M | ﹤0.01% |
73,100
+66,000
| +930% | +$2.26M |
|
1710
Cardinal Health
CAH
$53.4B
| $2.46M | ﹤0.01% |
32,010
-25,611
| -44% | -$1.95M |
|
1711
CALL
Dave & Buster's
PLAY
$343M
| $2.45M | ﹤0.01% |
69,200
-30,100
| -30% | -$1.09M |
|
1712
CALL
Mattel
MAT
$4.17B
| $2.45M | ﹤0.01% |
137,400
+123,600
| +896% | +$2.24M |
|
1713
PUT
Icahn Enterprises
IEP
$5.17B
| $2.45M | ﹤0.01% |
48,300
+32,700
| +210% | +$1.71M |
|
1714
PUT
Biohaven
BHVN
$2.16B
| $2.44M | ﹤0.01% |
+176,200
| New | +$2.49M |
|
1715
SoFi Technologies
SOFI
$21.1B
| $2.44M | ﹤0.01% |
530,222
-308,384
| -37% | -$1.53M |
|
|
GOOS
1716
PUT
Canada Goose Holdings
GOOS
$868M
| $2.44M | ﹤0.01% |
137,100
+79,100
| +136% | +$1.39M |
|
1717
AbbVie
ABBV
$458B
| $2.43M | ﹤0.01% |
15,043
-25,915
| -63% | -$3.97M |
|
1718
CALL
Corsair Gaming
CRSR
$1.05B
| $2.43M | ﹤0.01% |
179,200
+63,600
| +55% | +$925K |
|
1719
PUT
Blue Owl Capital
OWL
$6.39B
| $2.43M | ﹤0.01% |
229,100
+58,200
| +34% | +$615K |
|
|
GRMN
1720
CALL
Garmin
GRMN
$46.9B
| $2.43M | ﹤0.01% |
26,300
-39,700
| -60% | -$3.51M |
|
|
CS
1721
PUT
DELISTED
Credit Suisse Group
CS
| $2.43M | ﹤0.01% |
798,200
+561,700
| +238% | +$2.19M |
|
1722
Arch Capital
ACGL
$36.1B
| $2.42M | ﹤0.01% |
38,603
+30,182
| +358% | +$1.68M |
|
1723
CALL
Targa Resources
TRGP
$60.4B
| $2.42M | ﹤0.01% |
32,900
+2,200
| +7% | +$154K |
|
1724
CALL
ZipRecruiter
ZIP
$318M
| $2.42M | ﹤0.01% |
147,300
-31,800
| -18% | -$527K |
|
1725
CALL
Prothena Corp
PRTA
$458M
| $2.42M | ﹤0.01% |
40,100
+19,700
| +97% | +$1.15M |
|
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.