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 | |
|---|---|---|---|---|---|---|
2976
CALL
M/I Homes
MHO
$3.82B
| $940K | ﹤0.01% |
7,700
+100
| +1% | +$12.2K |
|
2977
Ormat Technologies
ORA
$6.14B
| $939K | ﹤0.01% |
13,106
+10,040
| +327% | +$697K |
|
2978
CALL
Viper Energy
VNOM
$8.5B
| $938K | ﹤0.01% |
25,000
+7,500
| +43% | +$285K |
|
2979
AerCap
AER
$23.8B
| $937K | ﹤0.01% |
10,059
+1,871
| +23% | +$167K |
|
2980
PUT
Alight
ALIT
$548M
| $936K | ﹤0.01% |
6,345
+1,650
| +35% | +$275K |
|
2981
CALL
Artisan Partners
APAM
$2.84B
| $936K | ﹤0.01% |
22,700
+11,500
| +103% | +$496K |
|
2982
Aramark
ARMK
$15.2B
| $936K | ﹤0.01% |
+27,517
| New | +$893K |
|
2983
PUT
Toro Company
TTC
$9.01B
| $935K | ﹤0.01% |
10,000
-5,200
| -34% | -$459K |
|
2984
CALL
Lithia Motors
LAD
$7.85B
| $934K | ﹤0.01% |
3,700
-6,300
| -63% | -$1.65M |
|
2985
CALL
Innodata
INOD
$1.9B
| $929K | ﹤0.01% |
62,700
+3,000
| +5% | +$31.2K |
|
2986
VICI Properties
VICI
$29.6B
| $929K | ﹤0.01% |
32,440
+24,502
| +309% | +$704K |
|
|
OSG
2987
Octave Specialty Group
OSG
$258M
| $928K | ﹤0.01% |
72,454
-207,271
| -74% | -$3.16M |
|
2988
CALL
EverQuote
EVER
$932M
| $928K | ﹤0.01% |
44,500
-33,900
| -43% | -$717K |
|
2989
Hormel Foods
HRL
$14.3B
| $928K | ﹤0.01% |
+30,464
| New | +$1.02M |
|
2990
CALL
NNN REIT
NNN
$9.38B
| $928K | ﹤0.01% |
21,800
-5,900
| -21% | -$245K |
|
2991
PUT
Beam Therapeutics
BEAM
$2.59B
| $927K | ﹤0.01% |
39,600
-12,500
| -24% | -$307K |
|
|
TDAY
2992
USA Today Co
TDAY
$1.26B
| $927K | ﹤0.01% |
201,206
+193,699
| +2,580% | +$648K |
|
2993
CALL
Evergy
EVRG
$19.8B
| $926K | ﹤0.01% |
17,500
-3,900
| -18% | -$207K |
|
2994
PUT
Ingersoll Rand
IR
$33B
| $926K | ﹤0.01% |
10,200
-9,200
| -47% | -$846K |
|
2995
CALL
BioCryst Pharmaceuticals
BCRX
$2.49B
| $925K | ﹤0.01% |
149,700
-78,200
| -34% | -$432K |
|
|
EU
2996
CALL
enCore Energy
EU
$233M
| $925K | ﹤0.01% |
235,000
-135,700
| -37% | -$600K |
|
2997
PUT
Infosys
INFY
$46.7B
| $925K | ﹤0.01% |
49,700
-16,400
| -25% | -$285K |
|
2998
Progress Software
PRGS
$1.64B
| $925K | ﹤0.01% |
17,059
+4,561
| +36% | +$231K |
|
2999
PUT
Vipshop
VIPS
$7.06B
| $925K | ﹤0.01% |
71,100
-37,900
| -35% | -$603K |
|
3000
MicroSectors FANG+ ETNs due Jan 8 2038
FNGS
$544M
| $923K | ﹤0.01% |
+18,801
| New | +$843K |
|
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.