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 | 0.38% |
| 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 | |
|---|---|---|---|---|---|---|
5551
PUT
BGC Group
BGC
$5.12B
| $152K | ﹤0.01% |
34,600
-42,500
| -55% | -$188K |
|
|
DMC
5552
PUT
Del Monte Corp
DMC
$1.42B
| $152K | ﹤0.01% |
5,900
+3,000
| +103% | +$81.5K |
|
5553
CALL
Future Fuel
FF
$249M
| $152K | ﹤0.01% |
15,700
+14,000
| +824% | +$114K |
|
5554
CALL
Fossil Group
FOSL
$330M
| $152K | ﹤0.01% |
15,800
-4,300
| -21% | -$48.8K |
|
5555
PUT
Lufax Holding
LU
$1.31B
| $152K | ﹤0.01% |
6,850
-21,250
| -76% | -$468K |
|
5556
PUT
ZTO Express
ZTO
$17.6B
| $152K | ﹤0.01% |
6,100
-92,300
| -94% | -$2.61M |
|
|
ZNTE
5557
PUT
DELISTED
Zanite Acquisition Corp. Class A Common Stock
ZNTE
| $152K | ﹤0.01% |
+14,900
| New | +$152K |
|
|
AGEN
5558
Agenus
AGEN
$315M
| $151K | ﹤0.01% |
3,132
-163
| -5% | -$8.81K |
|
5559
VanEck Fallen Angel High Yield Bond ETF
ANGL
$3.12B
| $151K | ﹤0.01% |
4,998
+4,900
| +5,000% | +$152K |
|
5560
BlueLinx
BXC
$701M
| $151K | ﹤0.01% |
2,110
-3,099
| -59% | -$254K |
|
5561
CALL
Chemed
CHE
$7.02B
| $151K | ﹤0.01% |
300
| – | – |
|
5562
PUT
Domo
DOMO
$184M
| $151K | ﹤0.01% |
3,000
+2,300
| +329% | +$105K |
|
5563
CALL
Globus Maritime Ltd
GLBS
$77.9M
| $151K | ﹤0.01% |
65,800
-14,000
| -18% | -$29.2K |
|
5564
CALL
Haemonetics
HAE
$4.11B
| $151K | ﹤0.01% |
2,400
-100
| -4% | -$5.44K |
|
5565
Ionis Pharmaceuticals
IONS
$9.39B
| $151K | ﹤0.01% |
+4,079
| New | +$134K |
|
5566
PUT
Liberty Energy
LBRT
$3.52B
| $151K | ﹤0.01% |
10,200
-9,600
| -48% | -$123K |
|
5567
PUT
Lincoln Electric
LECO
$15.6B
| $151K | ﹤0.01% |
1,100
+300
| +38% | +$39.3K |
|
5568
PUT
Mitek Systems
MITK
$838M
| $151K | ﹤0.01% |
10,300
+3,200
| +45% | +$49K |
|
5569
FreightCar America
RAIL
$243M
| $151K | ﹤0.01% |
25,552
+17,142
| +204% | +$70.3K |
|
5570
ZipRecruiter
ZIP
$405M
| $151K | ﹤0.01% |
6,608
-2,569
| -28% | -$55.7K |
|
|
CANO
5571
PUT
DELISTED
Cano Health, Inc.
CANO
| $151K | ﹤0.01% |
238
+125
| +111% | +$78.8K |
|
5572
PUT
Andersons Inc
ANDE
$2.21B
| $150K | ﹤0.01% |
+3,000
| New | +$126K |
|
|
APLS
5573
DELISTED
Apellis Pharmaceuticals
APLS
| $150K | ﹤0.01% |
+2,967
| New | +$131K |
|
5574
PUT
Caleres
CAL
$455M
| $150K | ﹤0.01% |
7,800
-11,500
| -60% | -$249K |
|
5575
FTC Solar
FTCI
$40.1M
| $150K | ﹤0.01% |
+3,060
| New | +$153K |
|
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 1,602 new positions and adding to 4,440 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 0.63% 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 1,602 new positions and closed 1,638 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.