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 | |
|---|---|---|---|---|---|---|
2101
CALL
Equinox Gold
EQX
$7.32B
| $1.49M | ﹤0.01% |
453,900
+23,600
| +5% | +$81.4K |
|
2102
CALL
Telefônica Brasil
VIV
$22.4B
| $1.49M | ﹤0.01% |
208,000
+199,700
| +2,406% | +$1.49M |
|
|
LHCG
2103
PUT
DELISTED
LHC Group LLC
LHCG
| $1.49M | ﹤0.01% |
9,200
+4,300
| +88% | +$710K |
|
2104
PUT
Nabors Industries
NBR
$1.23B
| $1.49M | ﹤0.01% |
9,600
+6,800
| +243% | +$1.01M |
|
2105
Aptiv
APTV
$12B
| $1.48M | ﹤0.01% |
+15,916
| New | +$1.51M |
|
2106
PUT
AerCap
AER
$23.9B
| $1.48M | ﹤0.01% |
25,400
-23,500
| -48% | -$1.3M |
|
2107
CALL
Lightspeed Commerce
LSPD
$1.3B
| $1.48M | ﹤0.01% |
103,600
-38,300
| -27% | -$624K |
|
2108
Cboe Global Markets
CBOE
$29.8B
| $1.48M | ﹤0.01% |
11,803
-13,988
| -54% | -$1.73M |
|
2109
CALL
Hecla Mining
HL
$10.2B
| $1.48M | ﹤0.01% |
265,500
-14,000
| -5% | -$69.6K |
|
2110
PUT
Edison International
EIX
$30.7B
| $1.48M | ﹤0.01% |
23,200
+7,200
| +45% | +$442K |
|
2111
PUT
Gold Fields
GFI
$29.2B
| $1.47M | ﹤0.01% |
142,500
+116,700
| +452% | +$1.13M |
|
2112
Lazard
LAZ
$4.37B
| $1.47M | ﹤0.01% |
42,541
+42,184
| +11,816% | +$1.5M |
|
|
DFTX
2113
CALL
Definium Therapeutics
DFTX
$5.73B
| $1.47M | ﹤0.01% |
670,300
-51,200
| -7% | -$142K |
|
2114
Bank of America
BAC
$435B
| $1.47M | ﹤0.01% |
+44,502
| New | +$1.53M |
|
2115
CALL
Veru
VERU
$36.1M
| $1.47M | ﹤0.01% |
27,910
-27,460
| -50% | -$2.26M |
|
2116
CALL
Dutch Bros
BROS
$8.78B
| $1.47M | ﹤0.01% |
52,200
-42,400
| -45% | -$1.4M |
|
|
PBT
2117
CALL
Permian Basin Royalty Trust
PBT
$1.36B
| $1.47M | ﹤0.01% |
58,400
+36,200
| +163% | +$749K |
|
2118
PUT
Motorola Solutions
MSI
$69.4B
| $1.47M | ﹤0.01% |
5,700
-6,200
| -52% | -$1.55M |
|
2119
CALL
Greif
GEF
$4.47B
| $1.46M | ﹤0.01% |
21,800
-17,800
| -45% | -$1.2M |
|
2120
CALL
Clear Secure
YOU
$5.26B
| $1.46M | ﹤0.01% |
53,200
+11,500
| +28% | +$317K |
|
2121
CALL
Raymond James Financial
RJF
$32.5B
| $1.45M | ﹤0.01% |
13,600
-10,000
| -42% | -$1.12M |
|
2122
TE Connectivity
TEL
$58.8B
| $1.45M | ﹤0.01% |
12,662
-15,865
| -56% | -$1.88M |
|
2123
PUT
Quaker Houghton
KWR
$2.63B
| $1.45M | ﹤0.01% |
+8,700
| New | +$1.46M |
|
2124
CALL
Qiagen
QGEN
$8.53B
| $1.45M | ﹤0.01% |
27,443
-21,973
| -44% | -$1.08M |
|
|
MTTR
2125
CALL
DELISTED
Matterport, Inc. Class A Common Stock
MTTR
| $1.45M | ﹤0.01% |
517,100
-100,200
| -16% | -$321K |
|
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.