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 | |
|---|---|---|---|---|---|---|
|
PENG
2176
PUT
Penguin Solutions Inc
PENG
$2.76B
| $1.89M | ﹤0.01% |
73,100
+28,900
| +65% | +$816K |
|
2177
CALL
Alto Ingredients
ALTO
$360M
| $1.89M | ﹤0.01% |
276,800
+28,600
| +12% | +$160K |
|
|
QLTB
2178
PUT
DELISTED
ISHARES BAA BA RATED CORP BOND FUND
QLTB
| $1.89M | ﹤0.01% |
16,300
+10,500
| +181% | +$1.22M |
|
2179
PUT
Yum! Brands
YUM
$41B
| $1.88M | ﹤0.01% |
15,900
-46,200
| -74% | -$5.69M |
|
|
JKS
2180
PUT
JinkoSolar
JKS
$775M
| $1.88M | ﹤0.01% |
39,000
+3,400
| +10% | +$156K |
|
|
JPGE
2181
PUT
DELISTED
JPMorgan Diversified Return Global Equity ETF
JPGE
| $1.88M | ﹤0.01% |
31,000
+21,900
| +241% | +$1.33M |
|
|
SAVE
2182
DELISTED
Spirit Airlines, Inc.
SAVE
| $1.88M | ﹤0.01% |
85,873
+32,906
| +62% | +$753K |
|
|
SBNY
2183
CALL
DELISTED
Signature Bank
SBNY
| $1.88M | ﹤0.01% |
6,400
-12,700
| -66% | -$4.13M |
|
2184
CALL
ScottsMiracle-Gro
SMG
$4.03B
| $1.87M | ﹤0.01% |
15,200
+3,700
| +32% | +$518K |
|
2185
CALL
Tenable Holdings
TENB
$3.56B
| $1.87M | ﹤0.01% |
32,300
+14,800
| +85% | +$765K |
|
2186
Synchrony
SYF
$23.7B
| $1.86M | ﹤0.01% |
53,491
+3,727
| +7% | +$156K |
|
2187
PUT
Canadian Imperial Bank of Commerce
CM
$107B
| $1.86M | ﹤0.01% |
30,600
-89,000
| -74% | -$5.62M |
|
|
MAPS
2188
CALL
DELISTED
WM TECHNOLOGY INC A
MAPS
| $1.86M | ﹤0.01% |
237,400
-57,800
| -20% | -$328K |
|
2189
CALL
Global Ship Lease
GSL
$1.57B
| $1.85M | ﹤0.01% |
65,100
-27,300
| -30% | -$716K |
|
2190
Walmart Inc
WMT
$871B
| $1.85M | ﹤0.01% |
+37,338
| New | +$1.75M |
|
|
TWOU
2191
CALL
DELISTED
2U Inc
TWOU
| $1.85M | ﹤0.01% |
4,640
+3,577
| +337% | +$1.44M |
|
2192
CALL
Trane Technologies
TT
$106B
| $1.85M | ﹤0.01% |
12,100
+7,500
| +163% | +$1.23M |
|
2193
ProShares UltraPro Short QQQ
SQQQ
$2.21B
| $1.84M | ﹤0.01% |
+2,186
| New | +$2.14M |
|
|
THCA
2194
CALL
DELISTED
Tuscan Holdings Corp. II Common Stock
THCA
| $1.84M | ﹤0.01% |
163,400
+153,000
| +1,471% | +$1.57M |
|
2195
PUT
Aldeyra Therapeutics
ALDX
$91.7M
| $1.84M | ﹤0.01% |
413,700
+109,100
| +36% | +$435K |
|
|
AUY
2196
CALL
DELISTED
Yamana Gold, Inc.
AUY
| $1.84M | ﹤0.01% |
329,400
+181,400
| +123% | +$857K |
|
|
CUTR
2197
PUT
DELISTED
Cutera, Inc.
CUTR
| $1.83M | ﹤0.01% |
+26,600
| New | +$1.08M |
|
|
TEN
2198
CALL
DELISTED
Tenneco Inc. Class A Voting Common Stock
TEN
| $1.83M | ﹤0.01% |
100,000
+8,000
| +9% | +$115K |
|
2199
ICICI Bank
IBN
$106B
| $1.83M | ﹤0.01% |
96,696
+85,334
| +751% | +$1.7M |
|
2200
PUT
Procore
PCOR
$6.46B
| $1.83M | ﹤0.01% |
31,600
+31,500
| +31,500% | +$2M |
|
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.