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 | |
|---|---|---|---|---|---|---|
7201
CALL
Barnes & Noble Education
BNED
$431M
| $47K | ﹤0.01% |
134
-888
| -87% | -$474K |
|
7202
PUT
Covenant Logistics
CVLG
$894M
| $47K | ﹤0.01% |
4,400
-200
| -4% | -$2.25K |
|
7203
DXC Technology
DXC
$1.82B
| $47K | ﹤0.01% |
+1,441
| New | +$47.7K |
|
7204
CALL
Edgewell Personal Care
EPC
$1.25B
| $47K | ﹤0.01% |
1,300
-800
| -38% | -$32.6K |
|
7205
Ezcorp Inc
EZPW
$1.83B
| $47K | ﹤0.01% |
+7,947
| New | +$49.5K |
|
7206
PUT
Flux Power
FLUX
$11.2M
| $47K | ﹤0.01% |
17,800
+200
| +1% | +$608 |
|
7207
CALL
IDT Corp
IDT
$1.64B
| $47K | ﹤0.01% |
1,400
-4,000
| -74% | -$149K |
|
7208
CALL
Lindsay Corp
LNN
$1.13B
| $47K | ﹤0.01% |
300
+100
| +50% | +$13.8K |
|
7209
CALL
LG Display
LPL
$3B
| $47K | ﹤0.01% |
5,800
-2,000
| -26% | -$17K |
|
7210
CALL
NiSource
NI
$21.3B
| $47K | ﹤0.01% |
1,500
-35,100
| -96% | -$1.02M |
|
7211
PUT
Quad
QUAD
$536M
| $47K | ﹤0.01% |
6,900
-9,000
| -57% | -$47.1K |
|
|
SCS
7212
DELISTED
Steelcase
SCS
| $47K | ﹤0.01% |
3,962
+2,185
| +123% | +$26.4K |
|
7213
PUT
Vivid Seats
SEAT
$84.6M
| $47K | ﹤0.01% |
+215
| New | +$45.8K |
|
7214
PUT
SELLAS Life Sciences
SLS
$1.97B
| $47K | ﹤0.01% |
7,100
+6,600
| +1,320% | +$38.6K |
|
7215
Spok Holdings
SPOK
$228M
| $47K | ﹤0.01% |
5,931
-2,277
| -28% | -$20.7K |
|
|
SY
7216
So-Young International
SY
$185M
| $47K | ﹤0.01% |
+24,018
| New | +$57.4K |
|
7217
Tiptree Inc
TIPT
$662M
| $47K | ﹤0.01% |
3,684
-5,223
| -59% | -$67.2K |
|
7218
PUT
Xometry
XMTR
$4.74B
| $47K | ﹤0.01% |
1,300
-9,000
| -87% | -$412K |
|
|
SIEN
7219
DELISTED
Sientra, Inc.
SIEN
| $47K | ﹤0.01% |
2,123
+545
| +35% | +$14.9K |
|
|
SUNL
7220
PUT
DELISTED
Sunlight Financial Holdings, Inc.
SUNL
| $47K | ﹤0.01% |
470
-185
| -28% | -$14.3K |
|
|
TA
7221
PUT
DELISTED
TravelCenters of America LLC
TA
| $47K | ﹤0.01% |
1,100
+400
| +57% | +$17.3K |
|
|
OYST
7222
CALL
DELISTED
Oyster Point Pharma, Inc. Common Stock
OYST
| $47K | ﹤0.01% |
4,100
-32,200
| -89% | -$383K |
|
|
HCIC
7223
DELISTED
Hennessy Capital Investment Corp. V Class A Common Stock
HCIC
| $47K | ﹤0.01% |
4,856
+2,780
| +134% | +$27.2K |
|
|
HMLP
7224
DELISTED
HOEGH LNG PARTNERS LP
HMLP
| $47K | ﹤0.01% |
6,394
-7,289
| -53% | -$33.9K |
|
|
ZNTE
7225
DELISTED
Zanite Acquisition Corp. Class A Common Stock
ZNTE
| $47K | ﹤0.01% |
+4,639
| New | +$47.4K |
|
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.