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 |
NVIDIA
NVDA
|
+$93M |
| 2 |
Citigroup
C
|
+$74.8M |
| 3 |
Pinduoduo
PDD
|
+$50.7M |
| 4 |
Intel
INTC
|
+$47.1M |
| 5 |
Broadcom
AVGO
|
+$46.2M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
State Street Energy Select Sector SPDR ETF
XLE
|
+$94.5M |
| 2 |
Pfizer
PFE
|
+$66.4M |
| 3 |
Boeing
BA
|
+$61.6M |
| 4 |
PayPal
PYPL
|
+$42.2M |
| 5 |
GE Aerospace
GE
|
+$42M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 0.53% |
| 2 | Consumer Discretionary | 0.29% |
| 3 | Healthcare | 0.21% |
| 4 | Financials | 0.2% |
| 5 | Materials | 0.12% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
101
PUT
Spotify
SPOT
$101B
| $148M | 0.09% |
472,200
-16,300
| -3% | -$4.91M |
|
102
CALL
Snowflake
SNOW
$94.2B
| $148M | 0.09% |
1,093,800
+227,500
| +26% | +$33.6M |
|
103
CALL
Chevron
CVX
$381B
| $145M | 0.09% |
928,000
-571,400
| -38% | -$91.1M |
|
|
104
NVIDIA
NVDA
$5.02T
| $144M | 0.09% |
1,167,780
+919,730
| +371% | +$93M |
|
105
CALL
Palantir
PLTR
$318B
| $143M | 0.09% |
5,661,600
-1,054,500
| -16% | -$23.7M |
|
106
CALL
Walmart Inc
WMT
$878B
| $142M | 0.09% |
2,099,200
-315,700
| -13% | -$19.9M |
|
107
CALL
Bank of America
BAC
$430B
| $139M | 0.09% |
3,503,400
-904,200
| -21% | -$34.7M |
|
|
108
PUT
PayPal
PYPL
$49.3B
| $139M | 0.09% |
2,387,800
-305,200
| -11% | -$19.4M |
|
109
PUT
ASML
ASML
$692B
| $138M | 0.09% |
135,400
-82,800
| -38% | -$79.6M |
|
110
PUT
Starbucks
SBUX
$119B
| $138M | 0.09% |
1,772,600
+987,500
| +126% | +$80.4M |
|
|
111
CALL
Starbucks
SBUX
$119B
| $136M | 0.08% |
1,743,200
+1,148,400
| +193% | +$93.5M |
|
|
NVO
112
PUT
Novo Nordisk
NVO
$218B
| $135M | 0.08% |
945,000
-82,700
| -8% | -$11M |
|
113
PUT
Nike
NKE
$63.7B
| $135M | 0.08% |
1,788,000
-36,800
| -2% | -$3.42M |
|
114
CALL
Airbnb
ABNB
$86B
| $132M | 0.08% |
871,900
+104,400
| +14% | +$16M |
|
|
UWC
115
CALL
DELISTED
PROSHARES TR ULTRA RUSSELL3000
UWC
| $131M | 0.08% |
1,786,000
+106,600
| +6% | +$7.83M |
|
116
CALL
UnitedHealth
UNH
$396B
| $130M | 0.08% |
255,600
-48,500
| -16% | -$23.8M |
|
117
CALL
CrowdStrike
CRWD
$195B
| $127M | 0.08% |
1,326,000
-290,800
| -18% | -$24.2M |
|
118
PUT
Freeport-McMoran
FCX
$89.9B
| $127M | 0.08% |
2,606,500
+382,100
| +17% | +$19.3M |
|
119
PUT
FedEx
FDX
$73.1B
| $126M | 0.08% |
419,900
+47,300
| +13% | +$12.4M |
|
120
PUT
Dell
DELL
$261B
| $126M | 0.08% |
912,300
+486,100
| +114% | +$65.2M |
|
|
121
PUT
Bank of America
BAC
$430B
| $125M | 0.08% |
3,144,800
-3,629,500
| -54% | -$139M |
|
122
CALL
Wells Fargo
WFC
$266B
| $125M | 0.08% |
2,102,300
-317,600
| -13% | -$18.7M |
|
|
123
PUT
Chevron
CVX
$381B
| $124M | 0.08% |
790,600
-104,000
| -12% | -$16.6M |
|
|
124
CALL
Nike
NKE
$63.7B
| $123M | 0.08% |
2,110,900
+493,200
| +30% | +$45.8M |
|
125
PUT
Visa
V
$677B
| $121M | 0.07% |
459,400
-25,600
| -5% | -$7.02M |
|
Similar funds
Simplex Trading's Q2 2024 Portfolio in Review
As of Q2 2024, Simplex Trading held 10,213 positions worth $162B, down 6.5% from $173B the previous quarter. Its ten largest holdings account for 50% of the portfolio.
Simplex Trading withdrew a net $19.2B in Q2 2024, closing 1,431 positions and reducing 4,061 holdings. Its most notable exit was Boeing, an estimated $61.6M position sold in full.
By sector, the portfolio is most concentrated in Technology at 0.53% of assets, up from 0.38% a quarter earlier, followed by Consumer Discretionary and Healthcare.
Against the trend, Simplex Trading opened a new position in Citigroup worth $77M.
- Simplex Trading's largest Q2 2024 buy was Citigroup: 1,213,247 shares worth $77M.
- Simplex Trading added most to NVIDIA in Q2 2024, an estimated $93M increase.
- Simplex Trading's biggest Q2 2024 reduction was State Street Energy Select Sector SPDR ETF, cutting an estimated $94.5M.
- Simplex Trading fully exited Boeing in Q2 2024, selling an estimated $61.6M.
- Simplex Trading's ten largest holdings make up 50% of its $162B portfolio in Q2 2024.
- Simplex Trading opened 1,358 new positions and closed 1,431 in Q2 2024.
- Simplex Trading's portfolio value fell 6.5% quarter-over-quarter to $162B.
Based on Simplex Trading's 13F filing for Q2 2024, filed 25 Jul 2024.