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 | |
|---|---|---|---|---|---|---|
6751
CALL
Expensify
EXFY
$176M
| $40K | ﹤0.01% |
+2,300
| New | +$40.7K |
|
6752
Diamondback Energy
FANG
$57.1B
| $40K | ﹤0.01% |
+334
| New | +$45.8K |
|
6753
PUT
First Financial Bancorp
FFBC
$3.55B
| $40K | ﹤0.01% |
2,100
| – | – |
|
|
FFIC
6754
CALL
DELISTED
Flushing Financial
FFIC
| $40K | ﹤0.01% |
+1,900
| New | +$41.7K |
|
6755
CALL
Finance of America Companies
FOA
$203M
| $40K | ﹤0.01% |
2,550
+570
| +29% | +$13.2K |
|
6756
PUT
ESS Tech
GWH
$22M
| $40K | ﹤0.01% |
967
-153
| -14% | -$10.7K |
|
6757
PUT
International Bancshares
IBOC
$4.76B
| $40K | ﹤0.01% |
+1,000
| New | +$40.8K |
|
6758
PUT
Immersion
IMMR
$251M
| $40K | ﹤0.01% |
7,500
-54,900
| -88% | -$284K |
|
6759
Lifecore Biomedical
LFCR
$166M
| $40K | ﹤0.01% |
4,020
+3,109
| +341% | +$30.8K |
|
6760
CALL
Live Oak Bancshares
LOB
$1.98B
| $40K | ﹤0.01% |
1,200
-1,200
| -50% | -$49.6K |
|
|
MTLS
6761
CALL
Materialise
MTLS
$368M
| $40K | ﹤0.01% |
3,000
-2,300
| -43% | -$36.3K |
|
|
NEWP
6762
CALL
New Pacific Metals
NEWP
$859M
| $40K | ﹤0.01% |
14,200
+8,600
| +154% | +$27.4K |
|
|
NINE
6763
DELISTED
Nine Energy Service
NINE
| $40K | ﹤0.01% |
+15,184
| New | +$45.7K |
|
6764
CALL
Prosperity Bancshares
PB
$8.97B
| $40K | ﹤0.01% |
600
-2,400
| -80% | -$165K |
|
6765
PUT
QuinStreet
QNST
$890M
| $40K | ﹤0.01% |
4,000
-23,100
| -85% | -$243K |
|
6766
CALL
Reynolds Consumer Products
REYN
$5.26B
| $40K | ﹤0.01% |
1,500
-200
| -12% | -$5.6K |
|
6767
RLJ Lodging Trust
RLJ
$1.86B
| $40K | ﹤0.01% |
+3,715
| New | +$48.5K |
|
6768
CALL
Tidewater
TDW
$3.73B
| $40K | ﹤0.01% |
1,900
-20,100
| -91% | -$462K |
|
6769
Bio-Techne
TECH
$11.2B
| $40K | ﹤0.01% |
+468
| New | +$43.9K |
|
|
TRIB
6770
CALL
Trinity Biotech
TRIB
$7.83M
| $40K | ﹤0.01% |
222
-16
| -7% | -$2.93K |
|
6771
PUT
UFP Industries
UFPI
$4.9B
| $40K | ﹤0.01% |
600
| – | – |
|
6772
WisdomTree Floating Rate Treasury Fund
USFR
$18.1B
| $40K | ﹤0.01% |
800
+500
| +167% | +$25.2K |
|
6773
CALL
Vista Gold
VGZ
$251M
| $40K | ﹤0.01% |
60,200
+57,400
| +2,050% | +$48.7K |
|
6774
CALL
Woodside Energy
WDS
$44.6B
| $40K | ﹤0.01% |
+1,900
| New | +$43.1K |
|
6775
Cactus
WHD
$5.21B
| $40K | ﹤0.01% |
1,015
-4,831
| -83% | -$243K |
|
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.