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 | |
|---|---|---|---|---|---|---|
4251
CALL
MarineMax
HZO
$758M
| $370K | ﹤0.01% |
9,200
+1,800
| +24% | +$84.6K |
|
4252
OneMain Financial
OMF
$7.34B
| $370K | ﹤0.01% |
7,814
-6,506
| -45% | -$324K |
|
4253
PUT
Oportun Financial
OPRT
$263M
| $370K | ﹤0.01% |
+25,800
| New | +$430K |
|
4254
PUT
Pegasystems
PEGA
$5.04B
| $370K | ﹤0.01% |
9,200
-4,000
| -30% | -$179K |
|
|
SOHU
4255
Sohu.com
SOHU
$348M
| $370K | ﹤0.01% |
22,042
+12,859
| +140% | +$221K |
|
|
GATO
4256
PUT
DELISTED
Gatos Silver, Inc.
GATO
| $370K | ﹤0.01% |
85,700
+74,900
| +694% | +$412K |
|
4257
CALL
ADT
ADT
$5.41B
| $369K | ﹤0.01% |
48,700
-124,100
| -72% | -$944K |
|
|
VISN
4258
Vistance Networks Inc
VISN
$2.62B
| $369K | ﹤0.01% |
46,841
+3,264
| +7% | +$29.9K |
|
|
VORB
4259
CALL
DELISTED
Virgin Orbit Holdings, Inc. Common Stock
VORB
| $369K | ﹤0.01% |
50,600
+49,600
| +4,960% | +$360K |
|
4260
PUT
Carlisle Companies
CSL
$13.1B
| $368K | ﹤0.01% |
+1,500
| New | +$352K |
|
4261
PUT
RCI Hospitality Holdings
RICK
$201M
| $368K | ﹤0.01% |
6,000
+1,600
| +36% | +$111K |
|
4262
BioXcel Therapeutics
BTAI
$25.2M
| $367K | ﹤0.01% |
1,100
+979
| +809% | +$284K |
|
4263
CALL
CoreCivic
CXW
$3B
| $367K | ﹤0.01% |
32,900
-79,900
| -71% | -$782K |
|
4264
Entergy
ETR
$51.5B
| $367K | ﹤0.01% |
6,298
-11,638
| -65% | -$637K |
|
4265
Kosmos Energy
KOS
$1.45B
| $367K | ﹤0.01% |
51,048
+33,006
| +183% | +$168K |
|
4266
Invesco S&P 500 High Beta ETF
SPHB
$939M
| $367K | ﹤0.01% |
+4,834
| New | +$363K |
|
|
CVAC
4267
CALL
DELISTED
CureVac
CVAC
| $366K | ﹤0.01% |
18,700
-15,300
| -45% | -$306K |
|
4268
Expeditors International
EXPD
$22.3B
| $365K | ﹤0.01% |
3,546
-1,280
| -27% | -$141K |
|
4269
GrowGeneration
GRWG
$85.9M
| $364K | ﹤0.01% |
+39,582
| New | +$357K |
|
4270
PUT
The Joint Corp
JYNT
$121M
| $364K | ﹤0.01% |
10,300
+8,800
| +587% | +$407K |
|
|
MOMO
4271
Hello Group
MOMO
$872M
| $364K | ﹤0.01% |
+63,030
| New | +$547K |
|
4272
CALL
Trinity Industries
TRN
$2.99B
| $364K | ﹤0.01% |
10,600
+7,100
| +203% | +$219K |
|
4273
CALL
Akebia Therapeutics
AKBA
$335M
| $363K | ﹤0.01% |
506,400
+460,800
| +1,011% | +$986K |
|
4274
PUT
Alkermes
ALKS
$8.13B
| $363K | ﹤0.01% |
13,800
-3,000
| -18% | -$74.3K |
|
|
PLYA
4275
DELISTED
Playa Hotels & Resorts
PLYA
| $363K | ﹤0.01% |
42,017
+26,731
| +175% | +$220K |
|
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.