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 | |
|---|---|---|---|---|---|---|
4851
CALL
Global X MSCI Norway ETF
NORW
$86.1M
| $244K | ﹤0.01% |
12,300
-3,200
| -21% | -$97.8K |
|
|
OTLY
4852
Oatly Group
OTLY
$476M
| $244K | ﹤0.01% |
2,438
-5,893
| -71% | -$777K |
|
|
HYZN
4853
PUT
DELISTED
Hyzon Motors Inc. Class A Common Stock
HYZN
| $244K | ﹤0.01% |
764
-242
| -24% | -$67.1K |
|
4854
ARK Space & Defense Innovation ETF
ARKX
$765M
| $243K | ﹤0.01% |
13,591
-18,335
| -57% | -$312K |
|
|
CVSA
4855
PUT
Covista Inc
CVSA
$4.55B
| $243K | ﹤0.01% |
8,200
+8,000
| +4,000% | +$215K |
|
4856
PUT
DHT Holdings
DHT
$2.99B
| $243K | ﹤0.01% |
41,900
-6,200
| -13% | -$34.1K |
|
4857
PUT
DNOW Inc
DNOW
$2.44B
| $243K | ﹤0.01% |
22,100
-4,700
| -18% | -$45.6K |
|
4858
PUT
G-III Apparel Group
GIII
$1.54B
| $243K | ﹤0.01% |
9,000
+5,100
| +131% | +$139K |
|
4859
PUT
International Seaways
INSW
$4.68B
| $243K | ﹤0.01% |
13,500
+9,300
| +221% | +$151K |
|
4860
CALL
Jackson Financial
JXN
$8.4B
| $243K | ﹤0.01% |
5,500
+300
| +6% | +$12.5K |
|
4861
PUT
Neurogene
NGNE
$672M
| $243K | ﹤0.01% |
6,470
+6,340
| +4,877% | +$370K |
|
4862
PUT
Penske Automotive Group
PAG
$14.7B
| $243K | ﹤0.01% |
2,600
+900
| +53% | +$91.1K |
|
|
PLG
4863
PUT
Platinum Group Metals
PLG
$160M
| $243K | ﹤0.01% |
115,300
+93,100
| +419% | +$180K |
|
|
RDFN
4864
DELISTED
Redfin
RDFN
| $243K | ﹤0.01% |
+13,499
| New | +$348K |
|
4865
Skywest
SKYW
$4.35B
| $243K | ﹤0.01% |
8,435
+2,623
| +45% | +$85.7K |
|
4866
PUT
W.R. Berkley
WRB
$28.1B
| $243K | ﹤0.01% |
5,475
+3,225
| +143% | +$129K |
|
|
TWNK
4867
CALL
DELISTED
Hostess Brands, Inc. Class A Common Stock
TWNK
| $243K | ﹤0.01% |
11,100
-58,900
| -84% | -$1.22M |
|
4868
CALL
American Resources Corp
AREC
$183M
| $242K | ﹤0.01% |
94,500
+21,900
| +30% | +$44.4K |
|
4869
CALL
Bally's
BALY
$708M
| $242K | ﹤0.01% |
7,900
-72,600
| -90% | -$2.45M |
|
4870
Delek US
DK
$3.98B
| $242K | ﹤0.01% |
+11,407
| New | +$207K |
|
4871
CALL
Extreme Networks
EXTR
$3.8B
| $242K | ﹤0.01% |
19,900
+12,000
| +152% | +$150K |
|
4872
PUT
Humacyte
HUMA
$168M
| $242K | ﹤0.01% |
34,300
+12,700
| +59% | +$73.9K |
|
4873
Ingles Markets
IMKTA
$1.72B
| $242K | ﹤0.01% |
2,724
+31
| +1% | +$2.63K |
|
4874
LPL Financial
LPLA
$27B
| $242K | ﹤0.01% |
1,330
-1,530
| -53% | -$266K |
|
4875
Protolabs
PRLB
$1.7B
| $242K | ﹤0.01% |
4,590
+4,096
| +829% | +$216K |
|
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.