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 | |
|---|---|---|---|---|---|---|
76
PUT
AbbVie
ABBV
$452B
| $159M | 0.17% |
981,400
+579,100
| +144% | +$88.8M |
|
77
PUT
Procter & Gamble
PG
$345B
| $156M | 0.17% |
1,030,100
+483,200
| +88% | +$67.7M |
|
78
CALL
Intel
INTC
$530B
| $156M | 0.17% |
5,894,500
-581,400
| -9% | -$16.1M |
|
79
CALL
Mastercard
MA
$476B
| $152M | 0.16% |
436,000
+70,500
| +19% | +$23.2M |
|
80
PUT
Occidental Petroleum
OXY
$56.2B
| $151M | 0.16% |
2,391,600
-227,400
| -9% | -$15.5M |
|
81
PUT
State Street SPDR Portfolio Short Term Treasury ETF
SPTS
$6.07B
| $150M | 0.16% |
1,182,200
-77,600
| -6% | -$2.24M |
|
82
PUT
Micron Technology
MU
$1.1T
| $150M | 0.16% |
2,995,300
-339,300
| -10% | -$18.6M |
|
83
PUT
Vanguard S&P 500 ETF
VOO
$981B
| $150M | 0.16% |
615,000
-280,300
| -31% | -$99M |
|
84
PUT
Bank of America
BAC
$430B
| $150M | 0.16% |
4,514,600
-549,400
| -11% | -$18.9M |
|
|
85
PUT
Berkshire Hathaway Class B
BRK.B
$1.06T
| $149M | 0.16% |
482,100
+25,900
| +6% | +$7.69M |
|
86
PUT
Coca-Cola
KO
$353B
| $147M | 0.16% |
2,307,200
+479,000
| +26% | +$28.9M |
|
87
CALL
Broadcom
AVGO
$1.84T
| $147M | 0.16% |
2,622,000
-969,000
| -27% | -$48.6M |
|
88
PUT
Walt Disney
DIS
$167B
| $141M | 0.15% |
1,623,500
+327,900
| +25% | +$31.4M |
|
89
PUT
Moderna
MRNA
$23.7B
| $141M | 0.15% |
783,900
+286,000
| +57% | +$46.8M |
|
90
PUT
Adobe
ADBE
$90.3B
| $140M | 0.15% |
416,000
-400
| -0.1% | -$128K |
|
91
PUT
Walmart Inc
WMT
$878B
| $139M | 0.15% |
3,111,600
+218,400
| +8% | +$10.4M |
|
92
PUT
Qualcomm
QCOM
$183B
| $137M | 0.15% |
1,249,700
+270,800
| +28% | +$31.7M |
|
|
93
CALL
Coca-Cola
KO
$353B
| $137M | 0.15% |
2,147,800
-93,700
| -4% | -$5.66M |
|
94
CALL
Salesforce
CRM
$139B
| $136M | 0.15% |
1,152,500
+389,000
| +51% | +$56.8M |
|
95
CALL
Johnson & Johnson
JNJ
$603B
| $135M | 0.15% |
765,200
+121,800
| +19% | +$21M |
|
|
96
PUT
Mastercard
MA
$476B
| $135M | 0.15% |
388,100
+45,800
| +13% | +$15.1M |
|
|
97
CALL
Occidental Petroleum
OXY
$56.2B
| $133M | 0.15% |
2,119,200
-169,300
| -7% | -$11.5M |
|
98
PUT
Pfizer
PFE
$142B
| $133M | 0.15% |
2,688,400
+271,300
| +11% | +$13M |
|
|
99
CALL
Bank of America
BAC
$430B
| $132M | 0.14% |
3,980,100
+139,200
| +4% | +$4.79M |
|
|
100
PUT
Citigroup
C
$223B
| $132M | 0.14% |
2,912,700
-2,133,000
| -42% | -$96.9M |
|
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.