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 | |
|---|---|---|---|---|---|---|
5476
CALL
Inseego
INSG
$113M
| $159K | ﹤0.01% |
3,930
-1,050
| -21% | -$48K |
|
|
KC
5477
PUT
Kingsoft Cloud Holdings
KC
$3.31B
| $159K | ﹤0.01% |
26,200
+1,200
| +5% | +$9.77K |
|
5478
CALL
Insulet
PODD
$11.5B
| $159K | ﹤0.01% |
600
-6,400
| -91% | -$1.57M |
|
5479
Rush Street Interactive
RSI
$2.8B
| $159K | ﹤0.01% |
21,996
-6,411
| -23% | -$64.6K |
|
5480
CALL
Champion Homes
SKY
$4.39B
| $159K | ﹤0.01% |
2,900
-28,000
| -91% | -$1.9M |
|
5481
PUT
Sunoco
SUN
$14.4B
| $159K | ﹤0.01% |
3,900
-4,900
| -56% | -$209K |
|
|
APPH
5482
PUT
DELISTED
AppHarvest, Inc. Common Stock
APPH
| $159K | ﹤0.01% |
29,600
+4,400
| +17% | +$18.2K |
|
|
CGAU
5483
PUT
Centerra Gold
CGAU
$3.42B
| $158K | ﹤0.01% |
16,100
+15,900
| +7,950% | +$143K |
|
5484
CALL
Dorchester Minerals
DMLP
$1.32B
| $158K | ﹤0.01% |
6,100
+1,800
| +42% | +$41.6K |
|
|
FPI
5485
CALL
Farmland Partners
FPI
$408M
| $158K | ﹤0.01% |
11,500
-25,300
| -69% | -$307K |
|
5486
PUT
Gilat Satellite Networks
GILT
$828M
| $158K | ﹤0.01% |
18,000
+12,400
| +221% | +$100K |
|
5487
PUT
Home BancShares
HOMB
$6.21B
| $158K | ﹤0.01% |
+7,000
| New | +$166K |
|
5488
PUT
Horizon Technology Finance
HRZN
$296M
| $158K | ﹤0.01% |
11,400
+6,000
| +111% | +$90.5K |
|
5489
MannKind Corp
MNKD
$1.2B
| $158K | ﹤0.01% |
+42,978
| New | +$157K |
|
5490
VanEck Low Carbon Energy ETF
SMOG
$130M
| $158K | ﹤0.01% |
1,092
-182
| -14% | -$25.4K |
|
5491
CALL
Verastem
VSTM
$495M
| $158K | ﹤0.01% |
9,350
+5,325
| +132% | +$91.7K |
|
|
FATH
5492
PUT
DELISTED
Fathom Digital Manufacturing Corporation
FATH
| $158K | ﹤0.01% |
1,280
+1,245
| +3,557% | +$202K |
|
|
EPAY
5493
CALL
DELISTED
Bottomline Technologies Inc
EPAY
| $158K | ﹤0.01% |
2,800
-1,800
| -39% | -$102K |
|
|
TRIT
5494
CALL
DELISTED
Triterras, Inc. Class A Ordinary Shares
TRIT
| $158K | ﹤0.01% |
76,700
-101,600
| -57% | -$204K |
|
5495
PUT
Absci
ABSI
$1.3B
| $157K | ﹤0.01% |
+18,700
| New | +$147K |
|
|
AVNS
5496
CALL
DELISTED
Avanos Medical
AVNS
| $157K | ﹤0.01% |
4,700
+4,400
| +1,467% | +$142K |
|
5497
PUT
Kontoor Brands
KTB
$4.66B
| $157K | ﹤0.01% |
3,800
+3,200
| +533% | +$151K |
|
5498
Kymera Therapeutics
KYMR
$8.48B
| $157K | ﹤0.01% |
3,725
+3,720
| +74,400% | +$157K |
|
5499
PUT
Navigator Holdings
NVGS
$1.37B
| $157K | ﹤0.01% |
12,900
-18,800
| -59% | -$189K |
|
5500
Resideo Technologies
REZI
$5.17B
| $157K | ﹤0.01% |
+6,618
| New | +$166K |
|
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.