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 | |
|---|---|---|---|---|---|---|
5201
Future Fuel
FF
$218M
| $192K | ﹤0.01% |
19,816
-932
| -4% | -$7.57K |
|
5202
State Street SPDR S&P Insurance ETF
KIE
$651M
| $192K | ﹤0.01% |
4,591
-15,835
| -78% | -$638K |
|
5203
Radiant Logistics
RLGT
$388M
| $192K | ﹤0.01% |
30,240
-50,812
| -63% | -$336K |
|
|
SCS
5204
CALL
DELISTED
Steelcase
SCS
| $192K | ﹤0.01% |
16,100
+7,900
| +96% | +$95.5K |
|
|
VIVO
5205
CALL
DELISTED
Meridian Bioscience Inc
VIVO
| $192K | ﹤0.01% |
7,400
-11,300
| -60% | -$269K |
|
|
BNFT
5206
DELISTED
Benefitfocus, Inc.
BNFT
| $192K | ﹤0.01% |
15,236
+7,021
| +85% | +$74.9K |
|
5207
PUT
Amcor
AMCR
$20.9B
| $191K | ﹤0.01% |
3,380
-2,800
| -45% | -$163K |
|
5208
Alpha Pro Tech
APT
$50.7M
| $191K | ﹤0.01% |
45,508
+20,392
| +81% | +$94.8K |
|
5209
PUT
COPT Defense Properties
CDP
$4.35B
| $191K | ﹤0.01% |
6,700
+6,600
| +6,600% | +$178K |
|
5210
CALL
Carlyle Secured Lending
CGBD
$702M
| $191K | ﹤0.01% |
13,300
+4,700
| +55% | +$66.6K |
|
5211
PUT
Globe Life
GL
$14.2B
| $191K | ﹤0.01% |
1,900
+1,100
| +138% | +$112K |
|
5212
CALL
Horizon Technology Finance
HRZN
$300M
| $191K | ﹤0.01% |
13,800
+700
| +5% | +$10.6K |
|
5213
Infosys
INFY
$48.4B
| $191K | ﹤0.01% |
7,710
-33,498
| -81% | -$794K |
|
5214
Rigel Pharmaceuticals
RIGL
$704M
| $191K | ﹤0.01% |
6,412
-2,426
| -27% | -$65.7K |
|
5215
PUT
Ryanair
RYAAY
$31.2B
| $191K | ﹤0.01% |
5,500
+3,500
| +175% | +$144K |
|
5216
CALL
SCYNEXIS
SCYX
$37M
| $191K | ﹤0.01% |
6,138
+1,263
| +26% | +$48.3K |
|
5217
PUT
Hims & Hers Health
HIMS
$6.26B
| $190K | ﹤0.01% |
35,700
-15,900
| -31% | -$78.7K |
|
|
MTLS
5218
Materialise
MTLS
$371M
| $190K | ﹤0.01% |
9,864
+732
| +8% | +$14.7K |
|
5219
PUT
Photronics
PLAB
$1.74B
| $190K | ﹤0.01% |
11,200
-3,900
| -26% | -$70.2K |
|
5220
PUT
Protolabs
PRLB
$1.79B
| $190K | ﹤0.01% |
3,600
-10,500
| -74% | -$552K |
|
5221
CALL
Sinclair Inc
SBGI
$994M
| $190K | ﹤0.01% |
6,800
-22,900
| -77% | -$636K |
|
5222
PUT
Teekay Tankers
TNK
$2.68B
| $190K | ﹤0.01% |
13,800
+4,000
| +41% | +$48.6K |
|
5223
PUT
AvePoint
AVPT
$2.72B
| $189K | ﹤0.01% |
36,000
-900
| -2% | -$5.15K |
|
5224
CALL
Entravision Communication
EVC
$1.07B
| $189K | ﹤0.01% |
29,600
+27,300
| +1,187% | +$170K |
|
5225
PUT
Fate Therapeutics
FATE
$293M
| $189K | ﹤0.01% |
4,900
+900
| +23% | +$34.9K |
|
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.