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
|
+$286M |
| 2 |
Vanguard S&P 500 ETF
VOO
|
+$82.3M |
| 3 |
Alphabet (Google) Class A
GOOGL
|
+$72.6M |
| 4 |
Alphabet (Google) Class C
GOOG
|
+$64.2M |
| 5 |
Intel
INTC
|
+$52.9M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
State Street SPDR S&P 500 ETF Trust
SPY
|
+$51.5M |
| 2 |
iShares Silver Trust
SLV
|
+$41.8M |
| 3 |
Ford
F
|
+$26.3M |
| 4 |
United Airlines
UAL
|
+$22.7M |
| 5 |
ExxonMobil
XOM
|
+$22.3M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 0.84% |
| 2 | Communication Services | 0.32% |
| 3 | Consumer Discretionary | 0.32% |
| 4 | Financials | 0.28% |
| 5 | Healthcare | 0.2% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
|
DBD
5176
CALL
DELISTED
Diebold Nixdorf Incorporated
DBD
| $133K | ﹤0.01% |
58,900
+34,300
| +139% | +$128K |
|
|
RDUS
5177
PUT
DELISTED
Radius Health, Inc.
RDUS
| $133K | ﹤0.01% |
12,900
+2,800
| +28% | +$20.8K |
|
5178
PUT
Ameris Bancorp
ABCB
$5.85B
| $132K | ﹤0.01% |
3,300
| – | – |
|
|
DRD
5179
PUT
DRDGold
DRD
$1.77B
| $132K | ﹤0.01% |
22,500
-1,600
| -7% | -$11.9K |
|
5180
Diana Shipping
DSX
$302M
| $132K | ﹤0.01% |
34,646
+7,072
| +26% | +$29.8K |
|
5181
CALL
Genworth Financial
GNW
$3.76B
| $132K | ﹤0.01% |
37,400
+18,000
| +93% | +$68.9K |
|
5182
CALL
KRONOS Worldwide
KRO
$693M
| $132K | ﹤0.01% |
7,200
+6,300
| +700% | +$108K |
|
|
PCH
5183
PUT
DELISTED
PotlatchDeltic
PCH
| $132K | ﹤0.01% |
3,000
+1,900
| +173% | +$98K |
|
5184
Qfin Holdings
QFIN
$1.69B
| $132K | ﹤0.01% |
7,633
-23,234
| -75% | -$345K |
|
5185
PUT
Rigel Pharmaceuticals
RIGL
$681M
| $132K | ﹤0.01% |
11,720
+1,450
| +14% | +$29.1K |
|
5186
CALL
Telefônica Brasil
VIV
$20.6B
| $132K | ﹤0.01% |
14,600
| – | – |
|
|
AMRN
5187
PUT
Amarin Corp
AMRN
$298M
| $131K | ﹤0.01% |
4,425
-1,775
| -29% | -$76.6K |
|
5188
Ardmore Shipping
ASC
$710M
| $131K | ﹤0.01% |
18,905
+4,681
| +33% | +$31.3K |
|
5189
Edgewell Personal Care
EPC
$1.25B
| $131K | ﹤0.01% |
3,809
+2,442
| +179% | +$87.8K |
|
5190
PUT
Masco
MAS
$14.1B
| $131K | ﹤0.01% |
2,600
-80,600
| -97% | -$4.26M |
|
|
MRSN
5191
PUT
DELISTED
Mersana Therapeutics
MRSN
| $131K | ﹤0.01% |
1,136
+48
| +4% | +$4.51K |
|
|
HUGS
5192
PUT
DELISTED
USHG Acquisition Corp.
HUGS
| $131K | ﹤0.01% |
+13,400
| New | +$134K |
|
|
CGAU
5193
PUT
Centerra Gold
CGAU
$3.36B
| $130K | ﹤0.01% |
19,400
+3,300
| +20% | +$27.9K |
|
|
DADA
5194
CALL
DELISTED
Dada Nexus
DADA
| $130K | ﹤0.01% |
16,100
-19,700
| -55% | -$151K |
|
|
VIP
5195
PUT
Vulcan Infrastructure and Power Inc. Class A Common Stock
VIP
$38.1M
| $130K | ﹤0.01% |
5,120
-310
| -6% | -$17.4K |
|
|
OLO
5196
CALL
DELISTED
Olo Inc
OLO
| $130K | ﹤0.01% |
13,200
+8,100
| +159% | +$88.2K |
|
5197
Saic
SAIC
$4.95B
| $130K | ﹤0.01% |
+1,403
| New | +$123K |
|
5198
WaFd
WAFD
$2.72B
| $130K | ﹤0.01% |
+4,362
| New | +$137K |
|
|
BCM
5199
CALL
DELISTED
iPath Pure Beta Broad Commodity ETN
BCM
| $130K | ﹤0.01% |
3,800
-34,300
| -90% | -$1.71M |
|
5200
PUT
Smartbird Inc
BIRD
$19.5M
| $129K | ﹤0.01% |
1,650
-520
| -24% | -$52.5K |
|
Similar funds
Simplex Trading's Q2 2022 Portfolio in Review
As of Q2 2022, Simplex Trading held 11,810 positions worth $94.1B, down 14% from $109B the previous quarter. Its ten largest holdings account for 40% of the portfolio.
Simplex Trading deployed $11.3B of net new capital in Q2 2022, opening 1,405 new positions and adding to 4,027 existing holdings. Its largest new stake was Alphabet (Google) Class C: 543,540 shares worth $59.4M.
By sector, the portfolio is most concentrated in Technology at 0.84% of assets, up from 0.67% a quarter earlier, followed by Communication Services and Consumer Discretionary.
On the sell side, the largest reduction was United Airlines, an estimated $22.7M trimmed.
- Simplex Trading's largest Q2 2022 buy was Alphabet (Google) Class C: 543,540 shares worth $59.4M.
- Simplex Trading added most to Apple in Q2 2022, an estimated $286M increase.
- Simplex Trading's biggest Q2 2022 reduction was United Airlines, cutting an estimated $22.7M.
- Simplex Trading fully exited State Street SPDR S&P 500 ETF Trust in Q2 2022, selling an estimated $51.5M.
- Simplex Trading's ten largest holdings make up 40% of its $94.1B portfolio in Q2 2022.
- Simplex Trading opened 1,405 new positions and closed 1,792 in Q2 2022.
- Simplex Trading's portfolio value fell 14% quarter-over-quarter to $94.1B.
Based on Simplex Trading's 13F filing for Q2 2022, filed 3 Aug 2022.