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 | |
|---|---|---|---|---|---|---|
2201
CALL
Kinsale Capital Group
KNSL
$7.95B
| $2M | ﹤0.01% |
5,200
-3,800
| -42% | -$1.54M |
|
2202
CALL
Howard Hughes
HHH
$3.93B
| $2M | ﹤0.01% |
32,414
+24,127
| +291% | +$1.51M |
|
2203
CALL
iShares Convertible Bond ETF
ICVT
$7.23B
| $2M | ﹤0.01% |
63,100
-93,700
| -60% | -$7.33M |
|
2204
PUT
Eagle Materials
EXP
$6.6B
| $2M | ﹤0.01% |
9,200
-3,600
| -28% | -$881K |
|
2205
Chewy
CHWY
$8.54B
| $2M | ﹤0.01% |
+73,390
| New | +$1.4M |
|
2206
Sibanye-Stillwater
SBSW
$5.92B
| $2M | ﹤0.01% |
459,503
+44,622
| +11% | +$221K |
|
2207
PUT
W.P. Carey
WPC
$17.1B
| $1.99M | ﹤0.01% |
40,200
+16,800
| +72% | +$947K |
|
2208
PUT
Webster Financial
WBS
$12.3B
| $1.99M | ﹤0.01% |
45,700
-10,700
| -19% | -$476K |
|
2209
PUT
Entergy
ETR
$54.1B
| $1.99M | ﹤0.01% |
37,200
-9,200
| -20% | -$496K |
|
2210
Veralto
VLTO
$22.6B
| $1.99M | ﹤0.01% |
+20,848
| New | +$1.99M |
|
2211
PUT
Perrigo
PRGO
$1.4B
| $1.99M | ﹤0.01% |
77,400
-9,900
| -11% | -$291K |
|
2212
PUT
Ardelyx
ARDX
$1.24B
| $1.99M | ﹤0.01% |
268,000
-8,700
| -3% | -$61.2K |
|
2213
CALL
Caleres
CAL
$396M
| $1.98M | ﹤0.01% |
59,000
-61,000
| -51% | -$2.19M |
|
2214
Arcus Biosciences
RCUS
$3.57B
| $1.98M | ﹤0.01% |
129,860
+120,137
| +1,236% | +$1.94M |
|
|
GOEV
2215
CALL
DELISTED
Canoo Inc. Class A Common Stock
GOEV
| $1.98M | ﹤0.01% |
46,430
+3,980
| +9% | +$195K |
|
2216
CALL
Extra Space Storage
EXR
$31.2B
| $1.97M | ﹤0.01% |
12,700
-19,700
| -61% | -$2.87M |
|
|
RC
2217
PUT
Ready Capital
RC
$265M
| $1.97M | ﹤0.01% |
241,100
+53,600
| +29% | +$457K |
|
2218
PUT
RXO
RXO
$4.23B
| $1.97M | ﹤0.01% |
75,400
+72,400
| +2,413% | +$1.51M |
|
2219
CALL
UDR
UDR
$12.9B
| $1.97M | ﹤0.01% |
47,900
-14,200
| -23% | -$547K |
|
2220
CALL
Clean Harbors
CLH
$16.1B
| $1.97M | ﹤0.01% |
8,700
+2,800
| +47% | +$587K |
|
2221
Futu Holdings
FUTU
$13.9B
| $1.97M | ﹤0.01% |
29,971
-29,160
| -49% | -$1.97M |
|
2222
CALL
Recursion Pharmaceuticals
RXRX
$1.57B
| $1.96M | ﹤0.01% |
261,800
+11,900
| +5% | +$104K |
|
2223
PUT
Virtu Financial
VIRT
$5.2B
| $1.96M | ﹤0.01% |
87,400
-14,100
| -14% | -$314K |
|
2224
Crocs
CROX
$6.69B
| $1.96M | ﹤0.01% |
13,443
-44,933
| -77% | -$6.3M |
|
2225
PUT
PagSeguro Digital
PAGS
$2.57B
| $1.96M | ﹤0.01% |
167,800
+41,000
| +32% | +$504K |
|
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.