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 | |
|---|---|---|---|---|---|---|
1801
CALL
Omega Healthcare
OHI
$15.4B
| $3.13M | ﹤0.01% |
91,400
-59,000
| -39% | -$1.86M |
|
|
ARR
1802
PUT
Armour Residential REIT
ARR
$2.02B
| $3.13M | ﹤0.01% |
161,300
-131,900
| -45% | -$2.51M |
|
1803
PUT
Valaris
VAL
$5.51B
| $3.12M | ﹤0.01% |
41,900
+1,200
| +3% | +$86.9K |
|
1804
PBF Energy
PBF
$7.29B
| $3.12M | ﹤0.01% |
67,789
+45,813
| +208% | +$2.35M |
|
1805
Royal Gold
RGLD
$17.1B
| $3.12M | ﹤0.01% |
24,921
+23,630
| +1,830% | +$2.95M |
|
1806
PUT
Lumentum
LITE
$59.4B
| $3.11M | ﹤0.01% |
61,100
-27,200
| -31% | -$1.23M |
|
1807
Kohl's
KSS
$2.03B
| $3.11M | ﹤0.01% |
+135,310
| New | +$3.27M |
|
1808
Pan American Silver
PAAS
$18.6B
| $3.11M | ﹤0.01% |
156,244
-171,909
| -52% | -$3.39M |
|
1809
PUT
Ventas
VTR
$48.9B
| $3.1M | ﹤0.01% |
60,500
-9,500
| -14% | -$445K |
|
1810
CALL
PureCycle Technologies
PCT
$1.17B
| $3.1M | ﹤0.01% |
523,800
-556,800
| -52% | -$3.03M |
|
1811
CALL
Credo Technology Group
CRDO
$39.7B
| $3.09M | ﹤0.01% |
96,900
+57,400
| +145% | +$1.27M |
|
1812
CALL
Equity Residential
EQR
$25.4B
| $3.08M | ﹤0.01% |
44,500
+11,900
| +37% | +$774K |
|
1813
Amplify Junior Silver Miners ETF
SILJ
$3.27B
| $3.08M | ﹤0.01% |
272,538
+210,832
| +342% | +$2.44M |
|
1814
CALL
MasTec
MTZ
$26.7B
| $3.08M | ﹤0.01% |
28,800
-69,100
| -71% | -$6.98M |
|
1815
KKR & Co
KKR
$89.2B
| $3.08M | ﹤0.01% |
29,219
+23,671
| +427% | +$2.41M |
|
1816
CALL
Rubrik
RBRK
$15.1B
| $3.08M | ﹤0.01% |
+100,300
| New | +$3.3M |
|
1817
PUT
GigaCloud Technology
GCT
$1.35B
| $3.07M | ﹤0.01% |
100,900
-23,800
| -19% | -$793K |
|
1818
CALL
Huntsman Corp
HUN
$2.24B
| $3.06M | ﹤0.01% |
134,300
-5,000
| -4% | -$122K |
|
1819
PUT
Sunoco
SUN
$14.2B
| $3.06M | ﹤0.01% |
54,100
+44,900
| +488% | +$2.45M |
|
1820
PUT
Talos Energy
TALO
$2.49B
| $3.06M | ﹤0.01% |
251,500
+236,200
| +1,544% | +$2.95M |
|
1821
CALL
Oscar Health
OSCR
$8.5B
| $3.05M | ﹤0.01% |
192,700
+73,300
| +61% | +$1.35M |
|
1822
CALL
Ormat Technologies
ORA
$6.11B
| $3.05M | ﹤0.01% |
42,500
+32,200
| +313% | +$2.24M |
|
1823
PUT
TC Energy
TRP
$73.5B
| $3.05M | ﹤0.01% |
80,400
+52,000
| +183% | +$1.97M |
|
1824
PUT
Louisiana-Pacific
LPX
$5.2B
| $3.05M | ﹤0.01% |
37,000
+23,900
| +182% | +$2M |
|
1825
CALL
Alliance Resource Partners
ARLP
$3.18B
| $3.04M | ﹤0.01% |
124,400
+79,200
| +175% | +$1.8M |
|
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.