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 | |
|---|---|---|---|---|---|---|
|
ECHO
1776
CALL
EchoStar
ECHO
$25.5B
| $3.21M | ﹤0.01% |
180,500
-132,600
| -42% | -$2.2M |
|
1777
CALL
Conagra Brands
CAG
$7.07B
| $3.21M | ﹤0.01% |
112,800
-227,000
| -67% | -$6.82M |
|
1778
PUT
Motorola Solutions
MSI
$69.4B
| $3.2M | ﹤0.01% |
8,300
-22,900
| -73% | -$8.26M |
|
1779
PUT
California Resources
CRC
$4.75B
| $3.2M | ﹤0.01% |
60,200
-53,800
| -47% | -$2.74M |
|
1780
PUT
Invesco
IVZ
$13.3B
| $3.2M | ﹤0.01% |
214,100
+32,700
| +18% | +$503K |
|
1781
PUT
Qorvo
QRVO
$7.63B
| $3.2M | ﹤0.01% |
27,600
+10,500
| +61% | +$1.12M |
|
1782
PUT
Manchester United
MANU
$3.91B
| $3.2M | ﹤0.01% |
198,300
+62,800
| +46% | +$1,000K |
|
1783
CALL
Fabrinet
FN
$17.1B
| $3.18M | ﹤0.01% |
13,000
+7,700
| +145% | +$1.63M |
|
1784
Peloton Interactive
PTON
$2.63B
| $3.17M | ﹤0.01% |
939,521
-4,766
| -0.5% | -$17.1K |
|
|
AY
1785
PUT
DELISTED
Atlantica Sustainable Infrastructure plc Ordinary Shares
AY
| $3.17M | ﹤0.01% |
144,600
+29,800
| +26% | +$625K |
|
1786
Keurig Dr Pepper
KDP
$40.4B
| $3.17M | ﹤0.01% |
94,936
-7,413
| -7% | -$246K |
|
1787
PUT
Madrigal Pharmaceuticals
MDGL
$12.6B
| $3.17M | ﹤0.01% |
11,300
-11,300
| -50% | -$2.69M |
|
1788
PUT
Ovintiv
OVV
$17.5B
| $3.16M | ﹤0.01% |
67,500
-61,200
| -48% | -$3.08M |
|
1789
CALL
Sherwin-Williams
SHW
$78.3B
| $3.16M | ﹤0.01% |
10,600
-1,100
| -9% | -$340K |
|
1790
CALL
Icahn Enterprises
IEP
$5.17B
| $3.16M | ﹤0.01% |
191,800
+58,800
| +44% | +$996K |
|
1791
PUT
Teladoc Health
TDOC
$1.58B
| $3.16M | ﹤0.01% |
323,200
-31,300
| -9% | -$382K |
|
1792
Shopify
SHOP
$148B
| $3.15M | ﹤0.01% |
+47,780
| New | +$3.17M |
|
1793
CALL
JetBlue
JBLU
$1.96B
| $3.15M | ﹤0.01% |
517,900
-643,700
| -55% | -$3.88M |
|
1794
Jabil
JBL
$32.8B
| $3.15M | ﹤0.01% |
28,990
-2,984
| -9% | -$362K |
|
1795
TransUnion
TRU
$14.8B
| $3.15M | ﹤0.01% |
42,450
+2,965
| +8% | +$221K |
|
|
ACB
1796
CALL
Aurora Cannabis
ACB
$165M
| $3.15M | ﹤0.01% |
681,200
+137,900
| +25% | +$873K |
|
1797
PUT
TORM
TRMD
$3.1B
| $3.14M | ﹤0.01% |
81,100
-40,600
| -33% | -$1.45M |
|
1798
PUT
Copa Holdings
CPA
$5.56B
| $3.14M | ﹤0.01% |
33,000
+17,200
| +109% | +$1.72M |
|
1799
CALL
Vanguard Dividend Appreciation ETF
VIG
$111B
| $3.14M | ﹤0.01% |
17,200
-7,600
| -31% | -$1.37M |
|
1800
CALL
Annaly Capital Management
NLY
$16.9B
| $3.13M | ﹤0.01% |
164,400
+35,900
| +28% | +$697K |
|
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.