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 | |
|---|---|---|---|---|---|---|
4926
PUT
Wolverine World Wide
WWW
$1.68B
| $152K | ﹤0.01% |
11,300
-2,300
| -17% | -$27.7K |
|
|
YALA
4927
Yalla Group
YALA
$814M
| $152K | ﹤0.01% |
33,435
+15,038
| +82% | +$71.1K |
|
4928
Ibotta
IBTA
$618M
| $152K | ﹤0.01% |
+2,033
| New | +$189K |
|
|
BECN
4929
DELISTED
Beacon Roofing Supply, Inc.
BECN
| $152K | ﹤0.01% |
+1,681
| New | +$162K |
|
4930
PUT
United States Brent Oil Fund
BNO
$782M
| $151K | ﹤0.01% |
4,700
+300
| +7% | +$9.47K |
|
4931
PUT
Neogen
NEOG
$2.05B
| $151K | ﹤0.01% |
9,700
+8,000
| +471% | +$111K |
|
4932
PUT
Red Robin
RRGB
$139M
| $151K | ﹤0.01% |
20,000
+14,200
| +245% | +$103K |
|
4933
CALL
System1
SST
$14.3M
| $151K | ﹤0.01% |
9,950
-3,290
| -25% | -$55.5K |
|
4934
CALL
TFS Financial
TFSL
$5.11B
| $151K | ﹤0.01% |
12,000
-3,500
| -23% | -$44K |
|
4935
PUT
Madison Square Garden
MSGE
$3.59B
| $150K | ﹤0.01% |
4,400
+2,400
| +120% | +$88.7K |
|
4936
CALL
Sylvamo
SLVM
$1.52B
| $150K | ﹤0.01% |
2,200
-2,600
| -54% | -$172K |
|
4937
CALL
Capricor Therapeutics
CAPR
| $149K | ﹤0.01% |
31,300
+22,400
| +252% | +$125K |
|
|
MREO
4938
Mereo BioPharma
MREO
$48.9M
| $149K | ﹤0.01% |
41,393
+12,151
| +42% | +$39.4K |
|
4939
PUT
Option Care Health
OPCH
$3.58B
| $149K | ﹤0.01% |
5,400
-35,900
| -87% | -$1.07M |
|
|
TRTX
4940
TPG RE Finance Trust
TRTX
$630M
| $149K | ﹤0.01% |
+17,306
| New | +$142K |
|
4941
PUT
Visteon
VC
$2.85B
| $149K | ﹤0.01% |
1,400
-1,400
| -50% | -$155K |
|
|
RVNC
4942
DELISTED
Revance Therapeutics, Inc.
RVNC
| $149K | ﹤0.01% |
+58,122
| New | +$198K |
|
|
TGR
4943
CALL
DELISTED
ISHARES TARGET DATE RETIREMENT INCOME ETF
TGR
| $149K | ﹤0.01% |
1,800
+1,100
| +157% | +$91.1K |
|
4944
Matthews International
MATW
$887M
| $148K | ﹤0.01% |
5,911
+4,812
| +438% | +$132K |
|
4945
PUT
Navitas Semiconductor
NVTS
$2.54B
| $148K | ﹤0.01% |
37,800
+10,300
| +37% | +$43.3K |
|
4946
CALL
Runway Growth Finance
RWAY
$235M
| $148K | ﹤0.01% |
12,600
-4,600
| -27% | -$55.9K |
|
4947
iShares MSCI Thailand ETF
THD
$361M
| $148K | ﹤0.01% |
2,731
+2,705
| +10,404% | +$156K |
|
4948
Invesco DB US Dollar Index Bearish Fund
UDN
$108M
| $148K | ﹤0.01% |
8,308
-3,690
| -31% | -$66.2K |
|
4949
CALL
Verrica Pharmaceuticals
VRCA
$89M
| $148K | ﹤0.01% |
2,040
+1,900
| +1,357% | +$146K |
|
4950
PUT
Alkermes
ALKS
$8.11B
| $147K | ﹤0.01% |
6,100
-14,500
| -70% | -$356K |
|
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.