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 | |
|---|---|---|---|---|---|---|
|
SNBR
7126
CALL
DELISTED
Sleep Number
SNBR
| $50K | ﹤0.01% |
1,000
+500
| +100% | +$33.9K |
|
7127
PUT
Sasol
SSL
$7.5B
| $50K | ﹤0.01% |
2,100
-72,500
| -97% | -$1.58M |
|
7128
PUT
Vista Energy
VIST
$7.84B
| $50K | ﹤0.01% |
+5,600
| New | +$40.3K |
|
7129
Vornado Realty Trust
VNO
$7.41B
| $50K | ﹤0.01% |
1,110
-5,423
| -83% | -$237K |
|
7130
Energous
WATT
$77.6M
| $50K | ﹤0.01% |
71
+36
| +103% | +$25K |
|
|
JBTM
7131
JBT Marel
JBTM
$7.21B
| $50K | ﹤0.01% |
+430
| New | +$55K |
|
|
ATSG
7132
CALL
DELISTED
Air Transport Services Group
ATSG
| $50K | ﹤0.01% |
1,500
-15,400
| -91% | -$450K |
|
|
ASXC
7133
PUT
DELISTED
Asensus Surgical, Inc.
ASXC
| $50K | ﹤0.01% |
79,900
+4,000
| +5% | +$3.08K |
|
|
OSG
7134
CALL
DELISTED
Overseas Shipholding Group Inc.
OSG
| $50K | ﹤0.01% |
+24,300
| New | +$47.2K |
|
|
SUNW
7135
PUT
DELISTED
Sunworks, Inc.
SUNW
| $50K | ﹤0.01% |
19,900
+11,400
| +134% | +$28.8K |
|
|
ONCT
7136
DELISTED
Oncternal Therapeutics, Inc. Common Stock
ONCT
| $50K | ﹤0.01% |
1,802
+1,307
| +264% | +$47.6K |
|
|
UPH
7137
DELISTED
UpHealth, Inc.
UPH
| $50K | ﹤0.01% |
4,291
+3,782
| +743% | +$83.7K |
|
|
IMPX
7138
DELISTED
AEA-Bridges Impact Corp
IMPX
| $50K | ﹤0.01% |
+5,115
| New | +$50.6K |
|
7139
AquaBounty Technologies
AQB
$4.66M
| $49K | ﹤0.01% |
1,324
-497
| -27% | -$17.3K |
|
|
CCC
7140
CALL
CCC Intelligent Solutions
CCC
$3.59B
| $49K | ﹤0.01% |
4,500
-47,500
| -91% | -$498K |
|
7141
PUT
Donnelley Financial Solutions
DFIN
$1.16B
| $49K | ﹤0.01% |
+1,500
| New | +$53.5K |
|
7142
Haemonetics
HAE
$3.89B
| $49K | ﹤0.01% |
790
-1,809
| -70% | -$98.4K |
|
7143
PUT
Insmed
INSM
$21.4B
| $49K | ﹤0.01% |
2,100
+1,900
| +950% | +$44.1K |
|
|
HYFT
7144
PUT
MindWalk Holdings
HYFT
$60.6M
| $49K | ﹤0.01% |
9,600
+2,800
| +41% | +$14.4K |
|
7145
Kopin
KOPN
$652M
| $49K | ﹤0.01% |
19,439
+10,477
| +117% | +$30.2K |
|
7146
Loews
L
$23.9B
| $49K | ﹤0.01% |
+767
| New | +$47K |
|
7147
nLIGHT
LASR
$3.88B
| $49K | ﹤0.01% |
2,826
-631
| -18% | -$11.9K |
|
7148
PUT
Everspin Technologies
MRAM
$341M
| $49K | ﹤0.01% |
5,700
+3,700
| +185% | +$35.4K |
|
7149
PUT
NRX Pharmaceuticals
NRXP
$135M
| $49K | ﹤0.01% |
2,040
-1,540
| -43% | -$50.1K |
|
|
OLP
7150
CALL
One Liberty Properties
OLP
$530M
| $49K | ﹤0.01% |
1,600
+1,400
| +700% | +$43.4K |
|
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.