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 | |
|---|---|---|---|---|---|---|
2226
TechnipFMC
FTI
$30.6B
| $1.78M | ﹤0.01% |
230,221
+154,288
| +203% | +$1.08M |
|
2227
Clorox
CLX
$11.6B
| $1.78M | ﹤0.01% |
12,825
+1,804
| +16% | +$276K |
|
2228
United States Oil Fund
USO
$2.45B
| $1.78M | ﹤0.01% |
24,048
-128,534
| -84% | -$8.64M |
|
|
APLS
2229
PUT
DELISTED
Apellis Pharmaceuticals
APLS
| $1.78M | ﹤0.01% |
35,000
+32,000
| +1,067% | +$1.41M |
|
2230
CALL
Quad
QUAD
$430M
| $1.78M | ﹤0.01% |
256,200
+250,400
| +4,317% | +$1.31M |
|
2231
CALL
Danaos Corp
DAC
$2.55B
| $1.77M | ﹤0.01% |
17,300
-12,900
| -43% | -$1.17M |
|
2232
Blackstone
BX
$104B
| $1.77M | ﹤0.01% |
13,951
+4,497
| +48% | +$548K |
|
|
FRC
2233
DELISTED
First Republic Bank
FRC
| $1.77M | ﹤0.01% |
+10,916
| New | +$1.9M |
|
2234
Tenet Healthcare
THC
$20.1B
| $1.77M | ﹤0.01% |
20,549
-27,188
| -57% | -$2.23M |
|
2235
CALL
Weibo
WB
$1.9B
| $1.76M | ﹤0.01% |
71,900
-6,200
| -8% | -$183K |
|
|
WW
2236
CALL
DELISTED
WW International
WW
| $1.76M | ﹤0.01% |
172,000
-155,200
| -47% | -$1.82M |
|
2237
PUT
Illinois Tool Works
ITW
$81.4B
| $1.76M | ﹤0.01% |
8,400
-21,500
| -72% | -$4.81M |
|
|
ABMD
2238
CALL
DELISTED
Abiomed Inc
ABMD
| $1.75M | ﹤0.01% |
5,300
+3,300
| +165% | +$1.02M |
|
|
DVAX
2239
DELISTED
Dynavax Technologies
DVAX
| $1.75M | ﹤0.01% |
161,631
+82,856
| +105% | +$1.01M |
|
|
NOVA
2240
CALL
DELISTED
Sunnova Energy
NOVA
| $1.75M | ﹤0.01% |
76,000
+43,200
| +132% | +$924K |
|
|
PING
2241
CALL
DELISTED
Ping Identity Holding Corp.
PING
| $1.75M | ﹤0.01% |
63,900
+2,300
| +4% | +$48.3K |
|
2242
PUT
Upland Software
UPLD
$12M
| $1.75M | ﹤0.01% |
9,940
+9,920
| +49,600% | +$1.82M |
|
|
NARI
2243
CALL
DELISTED
Inari Medical, Inc. Common Stock
NARI
| $1.75M | ﹤0.01% |
19,300
+13,200
| +216% | +$1.08M |
|
2244
Digital Turbine
APPS
$1.02B
| $1.75M | ﹤0.01% |
39,889
-23,553
| -37% | -$1.06M |
|
2245
CALL
Inspire Medical Systems
INSP
$1.42B
| $1.75M | ﹤0.01% |
6,800
+3,300
| +94% | +$754K |
|
|
CTRA
2246
DELISTED
Coterra Energy
CTRA
| $1.74M | ﹤0.01% |
64,527
-72,265
| -53% | -$1.69M |
|
2247
PUT
ReNew
RNW
$2.24B
| $1.74M | ﹤0.01% |
211,700
-72,700
| -26% | -$526K |
|
|
SRG
2248
PUT
Seritage Growth Properties
SRG
$130M
| $1.74M | ﹤0.01% |
137,500
+74,700
| +119% | +$824K |
|
|
ABB
2249
PUT
DELISTED
ABB Ltd
ABB
| $1.74M | ﹤0.01% |
53,700
+43,000
| +402% | +$1.5M |
|
2250
CoreCivic
CXW
$3.1B
| $1.74M | ﹤0.01% |
155,333
-20,362
| -12% | -$199K |
|
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.