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 | |
|---|---|---|---|---|---|---|
|
SPWR
3226
DELISTED
SunPower Corporation Common Stock
SPWR
| $783K | ﹤0.01% |
36,493
-28,620
| -44% | -$526K |
|
3227
CALL
Amplify Energy
AMPY
$158M
| $782K | ﹤0.01% |
142,300
-115,100
| -45% | -$531K |
|
|
CMPS
3228
PUT
Compass Pathways
CMPS
$1.57B
| $782K | ﹤0.01% |
60,700
+100
| +0.2% | +$1.49K |
|
3229
Equinox Gold
EQX
$7.54B
| $782K | ﹤0.01% |
94,589
-19,360
| -17% | -$136K |
|
3230
CALL
Manchester United
MANU
$3.96B
| $781K | ﹤0.01% |
54,000
+34,500
| +177% | +$470K |
|
3231
CALL
Voyager Therapeutics
VYGR
$198M
| $781K | ﹤0.01% |
102,600
+56,600
| +123% | +$252K |
|
3232
CALL
Energy Vault
NRGV
$536M
| $780K | ﹤0.01% |
+49,100
| New | +$560K |
|
3233
CALL
Saia
SAIA
$11.2B
| $780K | ﹤0.01% |
3,200
+2,800
| +700% | +$776K |
|
3234
CALL
SS&C Technologies
SSNC
$17.9B
| $780K | ﹤0.01% |
10,400
-9,500
| -48% | -$743K |
|
|
PACW
3235
PUT
DELISTED
PacWest Bancorp
PACW
| $780K | ﹤0.01% |
18,100
-34,900
| -66% | -$1.65M |
|
|
IRNT
3236
CALL
DELISTED
IronNet, Inc.
IRNT
| $780K | ﹤0.01% |
205,500
-76,200
| -27% | -$299K |
|
|
ICPT
3237
CALL
DELISTED
Intercept Pharmaceuticals, Inc.
ICPT
| $779K | ﹤0.01% |
47,900
-74,900
| -61% | -$1.17M |
|
3238
CALL
Alamos Gold
AGI
$12.6B
| $778K | ﹤0.01% |
92,400
+37,700
| +69% | +$284K |
|
3239
ING
ING
$95.8B
| $778K | ﹤0.01% |
+74,641
| New | +$972K |
|
|
SGI
3240
PUT
Somnigroup International
SGI
$15.6B
| $778K | ﹤0.01% |
27,900
+5,300
| +23% | +$195K |
|
|
AY
3241
CALL
DELISTED
Atlantica Sustainable Infrastructure plc Ordinary Shares
AY
| $778K | ﹤0.01% |
22,200
+8,100
| +57% | +$271K |
|
|
ME
3242
CALL
DELISTED
23andMe Holding Co
ME
| $776K | ﹤0.01% |
10,140
+405
| +4% | +$37K |
|
3243
Adtran
ADTN
$788M
| $773K | ﹤0.01% |
41,925
+1,428
| +4% | +$28.3K |
|
3244
CALL
Aehr Test Systems
AEHR
$2.49B
| $773K | ﹤0.01% |
76,100
-43,900
| -37% | -$561K |
|
3245
CubeSmart
CUBE
$9.6B
| $773K | ﹤0.01% |
14,861
+11,815
| +388% | +$598K |
|
3246
CALL
Globalstar
GSAT
$10.2B
| $773K | ﹤0.01% |
35,087
-11,506
| -25% | -$196K |
|
3247
CALL
Safe Bulkers
SB
$774M
| $773K | ﹤0.01% |
162,500
+71,700
| +79% | +$293K |
|
3248
PUT
CenterPoint Energy
CNP
$28.9B
| $772K | ﹤0.01% |
25,200
+6,600
| +35% | +$185K |
|
|
RDFN
3249
PUT
DELISTED
Redfin
RDFN
| $772K | ﹤0.01% |
42,800
-11,300
| -21% | -$291K |
|
3250
PUT
Antero Midstream
AM
$10.7B
| $771K | ﹤0.01% |
71,000
+15,500
| +28% | +$157K |
|
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.