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 | |
|---|---|---|---|---|---|---|
7451
PUT
Ametek
AME
$55.4B
| $39K | ﹤0.01% |
300
-100
| -25% | -$13.4K |
|
7452
PUT
ANI Pharmaceuticals
ANIP
$1.8B
| $39K | ﹤0.01% |
1,400
-5,600
| -80% | -$209K |
|
7453
CALL
ARKO Corp
ARKO
$896M
| $39K | ﹤0.01% |
4,300
-100
| -2% | -$843 |
|
7454
CALL
AtriCure
ATRC
$1.92B
| $39K | ﹤0.01% |
600
| – | – |
|
7455
PUT
Bentley Systems
BSY
$10.8B
| $39K | ﹤0.01% |
900
+700
| +350% | +$27.9K |
|
7456
Cabaletta Bio
CABA
$437M
| $39K | ﹤0.01% |
19,535
-14,703
| -43% | -$38.4K |
|
7457
PUT
Camtek
CAMT
$6.18B
| $39K | ﹤0.01% |
1,300
-100
| -7% | -$3.52K |
|
7458
PUT
Central Pacific Financial
CPF
$1.02B
| $39K | ﹤0.01% |
+1,400
| New | +$40.5K |
|
|
EB
7459
DELISTED
Eventbrite
EB
| $39K | ﹤0.01% |
+2,705
| New | +$40.1K |
|
7460
FuboTV Inc
FUBO
$261M
| $39K | ﹤0.01% |
502
-35,074
| -99% | -$4.09M |
|
7461
PUT
Goldman Sachs BDC
GSBD
$969M
| $39K | ﹤0.01% |
2,000
+1,200
| +150% | +$23.7K |
|
7462
PUT
Granite Construction
GVA
$5.29B
| $39K | ﹤0.01% |
1,200
-3,800
| -76% | -$131K |
|
|
LOAN
7463
CALL
Manhattan Bridge Capital
LOAN
$47.5M
| $39K | ﹤0.01% |
6,200
-1,100
| -15% | -$6.37K |
|
|
SEGG
7464
Sports Entertainment Gaming Global Corp
SEGG
$1.6M
| $39K | ﹤0.01% |
62
+30
| +94% | +$24.6K |
|
7465
CALL
Mirum Pharmaceuticals
MIRM
$6.46B
| $39K | ﹤0.01% |
1,800
+600
| +50% | +$12.2K |
|
7466
PUT
Momentus
MNTS
$76.3M
| $39K | ﹤0.01% |
1
| – | – |
|
7467
CALL
Murphy USA
MUSA
$11.2B
| $39K | ﹤0.01% |
200
+100
| +100% | +$18.8K |
|
7468
Neogen
NEOG
$2.63B
| $39K | ﹤0.01% |
+1,294
| New | +$46.5K |
|
7469
CALL
Navigator Holdings
NVGS
$1.38B
| $39K | ﹤0.01% |
3,200
-24,500
| -88% | -$247K |
|
7470
CALL
Patria Investments
PAX
$1.75B
| $39K | ﹤0.01% |
2,200
-9,600
| -81% | -$160K |
|
7471
CALL
Pricesmart
PSMT
$5.98B
| $39K | ﹤0.01% |
500
| – | – |
|
7472
PUT
Construction Partners
ROAD
$5.84B
| $39K | ﹤0.01% |
1,500
+1,300
| +650% | +$34.3K |
|
7473
CALL
Rhythm Pharmaceuticals
RYTM
$6.81B
| $39K | ﹤0.01% |
3,400
-400
| -11% | -$3.51K |
|
7474
CALL
Tennant Co
TNC
$1.43B
| $39K | ﹤0.01% |
+500
| New | +$39.5K |
|
7475
Vanguard Morningstar Small-Cap Value ETF
VBR
$37.1B
| $39K | ﹤0.01% |
+227
| New | +$39.5K |
|
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.