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 | |
|---|---|---|---|---|---|---|
6576
Axogen
AXGN
$2.46B
| $73K | ﹤0.01% |
9,195
+4,717
| +105% | +$40.7K |
|
|
CLPR
6577
CALL
Clipper Realty
CLPR
$44.4M
| $73K | ﹤0.01% |
8,100
-2,100
| -21% | -$19.6K |
|
6578
Cricut
CRCT
$1.01B
| $73K | ﹤0.01% |
5,644
+307
| +6% | +$5.32K |
|
6579
PUT
Carter's
CRI
$1.47B
| $73K | ﹤0.01% |
800
+600
| +300% | +$56.4K |
|
6580
CALL
Fabrinet
FN
$16.3B
| $73K | ﹤0.01% |
700
+100
| +17% | +$10.6K |
|
6581
Freshpet
FRPT
$2.93B
| $73K | ﹤0.01% |
+715
| New | +$67.3K |
|
6582
CALL
Genworth Financial
GNW
$3.76B
| $73K | ﹤0.01% |
19,400
+11,600
| +149% | +$46.6K |
|
6583
CALL
Ormat Technologies
ORA
$6.02B
| $73K | ﹤0.01% |
900
-400
| -31% | -$29.3K |
|
|
6584
PUT
Ormat Technologies
ORA
$6.02B
| $73K | ﹤0.01% |
900
+600
| +200% | +$43.9K |
|
6585
Old Republic International
ORI
$10.6B
| $73K | ﹤0.01% |
+2,851
| New | +$73.5K |
|
6586
Orion Group Holdings
ORN
$405M
| $73K | ﹤0.01% |
29,577
+28,029
| +1,811% | +$85.6K |
|
6587
Patterson-UTI
PTEN
$3.9B
| $73K | ﹤0.01% |
4,721
-868
| -16% | -$11K |
|
6588
Perella Weinberg Partners
PWP
$1.25B
| $73K | ﹤0.01% |
7,732
+2,774
| +56% | +$29.6K |
|
6589
CALL
PolyPid
PYPD
$83.6M
| $73K | ﹤0.01% |
+450
| New | +$68.2K |
|
|
HTT
6590
CALL
High Templar Tech Ltd
HTT
$391M
| $73K | ﹤0.01% |
62,000
-22,700
| -27% | -$21.8K |
|
6591
PUT
Radian Group
RDN
$5.22B
| $73K | ﹤0.01% |
3,300
-10,500
| -76% | -$242K |
|
|
RTB
6592
RTB Digital
RTB
$211M
| $73K | ﹤0.01% |
+49
| New | +$61.2K |
|
6593
Seer Inc
SEER
$123M
| $73K | ﹤0.01% |
4,795
-8,937
| -65% | -$138K |
|
|
NSLR
6594
PUT
Neostellar Capital Corp
NSLR
$278M
| $73K | ﹤0.01% |
8,500
+3,600
| +73% | +$40.3K |
|
|
VERV
6595
DELISTED
Verve Therapeutics
VERV
| $73K | ﹤0.01% |
3,212
+3,152
| +5,253% | +$90.1K |
|
6596
PUT
WD-40
WDFC
$3.05B
| $73K | ﹤0.01% |
400
-1,300
| -76% | -$278K |
|
6597
CALL
Dentsply Sirona
XRAY
$2.83B
| $73K | ﹤0.01% |
1,500
+400
| +36% | +$21.1K |
|
|
DM
6598
CALL
DELISTED
Desktop Metal, Inc.
DM
| $73K | ﹤0.01% |
1,560
-4,820
| -76% | -$204K |
|
|
ZYNE
6599
CALL
DELISTED
Zynerba Pharmaceuticals, Inc
ZYNE
| $73K | ﹤0.01% |
35,900
-16,700
| -32% | -$39.7K |
|
|
LMACA
6600
CALL
DELISTED
Liberty Media Acquisition Corporation Series A Common Stock
LMACA
| $73K | ﹤0.01% |
7,400
+1,800
| +32% | +$18.1K |
|
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.