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 |
Apple
AAPL
|
+$286M |
| 2 |
Vanguard S&P 500 ETF
VOO
|
+$82.3M |
| 3 |
Alphabet (Google) Class A
GOOGL
|
+$72.6M |
| 4 |
Alphabet (Google) Class C
GOOG
|
+$64.2M |
| 5 |
Intel
INTC
|
+$52.9M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
State Street SPDR S&P 500 ETF Trust
SPY
|
+$51.5M |
| 2 |
iShares Silver Trust
SLV
|
+$41.8M |
| 3 |
Ford
F
|
+$26.3M |
| 4 |
United Airlines
UAL
|
+$22.7M |
| 5 |
ExxonMobil
XOM
|
+$22.3M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 0.84% |
| 2 | Communication Services | 0.32% |
| 3 | Consumer Discretionary | 0.32% |
| 4 | Financials | 0.28% |
| 5 | Healthcare | 0.2% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
1001
CALL
Rithm Capital
RITM
$5.09B
| $6.56M | 0.01% |
703,700
+86,800
| +14% | +$912K |
|
1002
PUT
Quest Diagnostics
DGX
$25.1B
| $6.55M | 0.01% |
49,300
-25,700
| -34% | -$3.5M |
|
|
CPE
1003
PUT
DELISTED
Callon Petroleum Company
CPE
| $6.54M | 0.01% |
166,800
+54,000
| +48% | +$2.89M |
|
1004
PUT
Applovin
APP
$132B
| $6.49M | 0.01% |
188,500
+150,100
| +391% | +$6.03M |
|
1005
CALL
Intercontinental Exchange
ICE
$82.4B
| $6.49M | 0.01% |
69,000
-67,600
| -49% | -$7.23M |
|
1006
CALL
Arista Networks
ANET
$219B
| $6.46M | 0.01% |
275,600
+20,400
| +8% | +$560K |
|
1007
CALL
Realty Income
O
$61.2B
| $6.46M | 0.01% |
106,600
+47,700
| +81% | +$3.28M |
|
1008
CALL
Vistra
VST
$55.1B
| $6.45M | 0.01% |
282,400
+151,200
| +115% | +$3.74M |
|
1009
Citigroup
C
$222B
| $6.45M | 0.01% |
140,252
+97,802
| +230% | +$4.89M |
|
1010
Shopify
SHOP
$148B
| $6.45M | 0.01% |
206,389
-208,481
| -50% | -$8.9M |
|
1011
PUT
T. Rowe Price
TROW
$25B
| $6.44M | 0.01% |
56,700
+7,700
| +16% | +$979K |
|
1012
RH
RH
$3.3B
| $6.39M | 0.01% |
30,120
-7,392
| -20% | -$2.19M |
|
1013
PUT
Dell
DELL
$283B
| $6.38M | 0.01% |
142,900
+98,700
| +223% | +$4.66M |
|
1014
CF Industries
CF
$19.2B
| $6.38M | 0.01% |
74,420
+16,280
| +28% | +$1.58M |
|
|
JKS
1015
PUT
JinkoSolar
JKS
$775M
| $6.37M | 0.01% |
92,100
+53,100
| +136% | +$2.98M |
|
1016
CALL
Wolfspeed
WOLF
$1.2B
| $6.35M | 0.01% |
100,100
+21,100
| +27% | +$1.75M |
|
1017
CALL
Nokia
NOK
$50.8B
| $6.34M | 0.01% |
1,374,800
-508,800
| -27% | -$2.54M |
|
1018
CALL
Dominion Energy
D
$62.5B
| $6.3M | 0.01% |
79,000
-67,600
| -46% | -$5.58M |
|
1019
CALL
HDFC Bank
HDB
$119B
| $6.29M | 0.01% |
229,000
+26,600
| +13% | +$750K |
|
|
WBA
1020
DELISTED
Walgreens Boots Alliance
WBA
| $6.29M | 0.01% |
+165,946
| New | +$7.13M |
|
1021
CALL
Edwards Lifesciences
EW
$47.6B
| $6.27M | 0.01% |
65,900
+5,200
| +9% | +$538K |
|
|
1022
PUT
Realty Income
O
$61.2B
| $6.24M | 0.01% |
95,700
+62,700
| +190% | +$4.31M |
|
1023
CALL
Vornado Realty Trust
VNO
$7.47B
| $6.23M | 0.01% |
218,000
+210,700
| +2,886% | +$7.52M |
|
1024
PUT
Otis Worldwide
OTIS
$27.4B
| $6.22M | 0.01% |
88,000
+71,200
| +424% | +$5.24M |
|
1025
PUT
Agilent Technologies
A
$39.1B
| $6.2M | 0.01% |
52,200
+10,800
| +26% | +$1.33M |
|
Similar funds
Simplex Trading's Q2 2022 Portfolio in Review
As of Q2 2022, Simplex Trading held 11,810 positions worth $94.1B, down 14% from $109B the previous quarter. Its ten largest holdings account for 40% of the portfolio.
Simplex Trading deployed $11.3B of net new capital in Q2 2022, opening 1,405 new positions and adding to 4,027 existing holdings. Its largest new stake was Alphabet (Google) Class C: 543,540 shares worth $59.4M.
By sector, the portfolio is most concentrated in Technology at 0.84% of assets, up from 0.67% a quarter earlier, followed by Communication Services and Consumer Discretionary.
On the sell side, the largest reduction was United Airlines, an estimated $22.7M trimmed.
- Simplex Trading's largest Q2 2022 buy was Alphabet (Google) Class C: 543,540 shares worth $59.4M.
- Simplex Trading added most to Apple in Q2 2022, an estimated $286M increase.
- Simplex Trading's biggest Q2 2022 reduction was United Airlines, cutting an estimated $22.7M.
- Simplex Trading fully exited State Street SPDR S&P 500 ETF Trust in Q2 2022, selling an estimated $51.5M.
- Simplex Trading's ten largest holdings make up 40% of its $94.1B portfolio in Q2 2022.
- Simplex Trading opened 1,405 new positions and closed 1,792 in Q2 2022.
- Simplex Trading's portfolio value fell 14% quarter-over-quarter to $94.1B.
Based on Simplex Trading's 13F filing for Q2 2022, filed 3 Aug 2022.