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
|
+$179M |
| 2 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$90.1M |
| 3 |
State Street SPDR S&P 500 ETF Trust
SPY
|
+$56M |
| 4 |
iShares Silver Trust
SLV
|
+$41.7M |
| 5 |
Advanced Micro Devices
AMD
|
+$39.8M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
State Street Financial Select Sector SPDR ETF
XLF
|
+$42.8M |
| 2 |
Verizon
VZ
|
+$42.5M |
| 3 |
Occidental Petroleum
OXY
|
+$34.7M |
| 4 |
iShares China Large-Cap ETF
FXI
|
+$33M |
| 5 |
Direxion Daily S&P 500 Bull 3x ETF
SPXL
|
+$32.7M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 0.67% |
| 2 | Consumer Discretionary | 0.37% |
| 3 | Industrials | 0.24% |
| 4 | Healthcare | 0.22% |
| 5 | Financials | 0.19% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
|
SWCH
1101
CALL
DELISTED
Switch, Inc. Class A Common Stock
SWCH
| $6.2M | 0.01% |
201,300
+84,200
| +72% | +$2.24M |
|
1102
CALL
Scotiabank
BNS
$106B
| $6.2M | 0.01% |
86,400
+74,100
| +602% | +$5.37M |
|
|
VSTO
1103
PUT
DELISTED
Vista Outdoor Inc.
VSTO
| $6.19M | 0.01% |
173,400
+160,700
| +1,265% | +$6.21M |
|
1104
PUT
Alaska Air
ALK
$4.99B
| $6.17M | 0.01% |
106,300
+50,500
| +91% | +$2.75M |
|
1105
CALL
UiPath
PATH
$5.28B
| $6.17M | 0.01% |
285,600
+105,600
| +59% | +$3.56M |
|
|
DISH
1106
CALL
DELISTED
DISH Network Corp.
DISH
| $6.16M | 0.01% |
194,700
-158,400
| -45% | -$5.01M |
|
1107
PUT
AMN Healthcare
AMN
$1.28B
| $6.13M | 0.01% |
58,800
+35,000
| +147% | +$3.63M |
|
1108
Direxion Daily Energy Bull 2X ETF
ERX
$247M
| $6.13M | 0.01% |
110,507
-9,379
| -8% | -$431K |
|
1109
CALL
FirstEnergy
FE
$28.6B
| $6.12M | 0.01% |
133,400
+13,000
| +11% | +$550K |
|
1110
CALL
United States Brent Oil Fund
BNO
$828M
| $6.11M | 0.01% |
204,100
+176,100
| +629% | +$4.7M |
|
1111
CALL
MetLife
MET
$59.5B
| $6.11M | 0.01% |
86,900
+10,400
| +14% | +$703K |
|
1112
PUT
Ameren
AEE
$31.3B
| $6.08M | 0.01% |
64,900
+49,200
| +313% | +$4.31M |
|
1113
CALL
GoDaddy
GDDY
$11.6B
| $6.08M | 0.01% |
72,600
+15,500
| +27% | +$1.22M |
|
1114
PUT
International Paper
IP
$20.1B
| $6.07M | 0.01% |
132,200
-8,000
| -6% | -$368K |
|
1115
PUT
Fair Isaac
FICO
$28B
| $6.06M | 0.01% |
13,000
+4,700
| +57% | +$2.22M |
|
1116
PUT
Church & Dwight Co
CHD
$22.8B
| $6.05M | 0.01% |
60,900
-2,500
| -4% | -$249K |
|
1117
PUT
Air Products & Chemicals
APD
$65.5B
| $6.05M | 0.01% |
24,200
-3,100
| -11% | -$797K |
|
1118
PUT
Lemonade
LMND
$4.66B
| $6.04M | 0.01% |
228,900
-76,900
| -25% | -$2.18M |
|
1119
Vale
VALE
$63.1B
| $6.04M | 0.01% |
301,978
-1,149,425
| -79% | -$19.9M |
|
1120
PUT
Wolfspeed
WOLF
$1.35B
| $6.03M | 0.01% |
53,000
-104,800
| -66% | -$10.6M |
|
1121
PUT
Tower Semiconductor
TSEM
$29.4B
| $6.03M | 0.01% |
124,600
+107,800
| +642% | +$4.55M |
|
1122
Bilibili
BILI
$7.32B
| $6.02M | 0.01% |
235,194
+149,945
| +176% | +$4.82M |
|
1123
PENN Entertainment
PENN
$2.71B
| $6.01M | 0.01% |
141,658
+19,202
| +16% | +$878K |
|
1124
CF Industries
CF
$19.5B
| $5.99M | 0.01% |
58,140
-8,389
| -13% | -$677K |
|
1125
PUT
PTC
PTC
$13.1B
| $5.99M | 0.01% |
55,600
+13,300
| +31% | +$1.5M |
|
Similar funds
Simplex Trading's Q1 2022 Portfolio in Review
As of Q1 2022, Simplex Trading held 12,038 positions worth $109B, up 10% from $99B the previous quarter. Its ten largest holdings account for 37% of the portfolio.
Simplex Trading deployed $17.5B of net new capital in Q1 2022, opening 1,603 new positions and adding to 4,441 existing holdings. Its largest new stake was iShares 20+ Year Treasury Bond ETF: 652,921 shares worth $86.2M.
By sector, the portfolio is most concentrated in Technology at 0.67% of assets, up from 0.61% a quarter earlier, followed by Consumer Discretionary and Industrials.
On the sell side, the largest reduction was Verizon, an estimated $42.5M trimmed.
- Simplex Trading's largest Q1 2022 buy was iShares 20+ Year Treasury Bond ETF: 652,921 shares worth $86.2M.
- Simplex Trading added most to Apple in Q1 2022, an estimated $179M increase.
- Simplex Trading's biggest Q1 2022 reduction was Verizon, cutting an estimated $42.5M.
- Simplex Trading fully exited State Street Financial Select Sector SPDR ETF in Q1 2022, selling an estimated $42.8M.
- Simplex Trading's ten largest holdings make up 37% of its $109B portfolio in Q1 2022.
- Simplex Trading opened 1,603 new positions and closed 1,637 in Q1 2022.
- Simplex Trading's portfolio value rose 10% quarter-over-quarter to $109B.
Based on Simplex Trading's 13F filing for Q1 2022, filed 2 May 2022.