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 | |
|---|---|---|---|---|---|---|
7876
Oil States International
OIS
$466M
| $15K | ﹤0.01% |
2,928
-58,024
| -95% | -$405K |
|
|
OLO
7877
PUT
DELISTED
Olo Inc
OLO
| $15K | ﹤0.01% |
1,600
-800
| -33% | -$8.71K |
|
7878
PUT
Ondas Inc
ONDS
$3.87B
| $15K | ﹤0.01% |
2,900
-6,200
| -68% | -$42.9K |
|
|
ORC
7879
CALL
Orchid Island Capital
ORC
$1.31B
| $15K | ﹤0.01% |
1,080
-11,020
| -91% | -$164K |
|
7880
PUT
Outfront Media
OUT
$5.75B
| $15K | ﹤0.01% |
914
+609
| +200% | +$13.2K |
|
7881
CALL
Patrick Industries
PATK
$2.87B
| $15K | ﹤0.01% |
450
+150
| +50% | +$5.94K |
|
7882
PUT
Park-Ohio Holdings
PKOH
$550M
| $15K | ﹤0.01% |
1,000
+400
| +67% | +$5.62K |
|
7883
Rayonier Advanced Materials
RYAM
$562M
| $15K | ﹤0.01% |
+5,995
| New | +$26.9K |
|
7884
CALL
Sana Biotechnology
SANA
$882M
| $15K | ﹤0.01% |
+2,400
| New | +$15.3K |
|
|
SEMR
7885
DELISTED
Semrush
SEMR
| $15K | ﹤0.01% |
1,170
-132
| -10% | -$1.44K |
|
7886
PUT
SES AI
SES
$187M
| $15K | ﹤0.01% |
4,000
-1,000
| -20% | -$6.4K |
|
7887
PUT
SELLAS Life Sciences
SLS
$1.99B
| $15K | ﹤0.01% |
7,000
-100
| -1% | -$293 |
|
7888
SoundHound AI
SOUN
$2.48B
| $15K | ﹤0.01% |
+5,614
| New | +$34.7K |
|
7889
CALL
TransUnion
TRU
$16B
| $15K | ﹤0.01% |
200
-9,600
| -98% | -$826K |
|
|
VERV
7890
PUT
DELISTED
Verve Therapeutics
VERV
| $15K | ﹤0.01% |
1,000
-13,800
| -93% | -$214K |
|
7891
CALL
VolitionRx Ltd
VNRX
$9.31M
| $15K | ﹤0.01% |
380
+20
| +6% | +$1.01K |
|
7892
Weatherford International
WFRD
$5.9B
| $15K | ﹤0.01% |
755
-21,930
| -97% | -$698K |
|
|
XNET
7893
Xunlei
XNET
$333M
| $15K | ﹤0.01% |
9,803
+3,366
| +52% | +$4.78K |
|
7894
PUT
Xos
XOS
$26.8M
| $15K | ﹤0.01% |
273
+70
| +34% | +$5.59K |
|
7895
Astrana Health
ASTH
$1.81B
| $15K | ﹤0.01% |
+414
| New | +$15.7K |
|
|
CCEC
7896
CALL
Capital Clean Energy Carriers
CCEC
$1.37B
| $15K | ﹤0.01% |
1,000
-22,200
| -96% | -$353K |
|
|
AIFU
7897
PUT
AIFU Inc
AIFU
$193M
| $15K | ﹤0.01% |
23
+5
| +28% | +$11.5K |
|
|
TFFP
7898
PUT
DELISTED
TFF Pharmaceuticals, Inc. Common Stock
TFFP
| $15K | ﹤0.01% |
108
-368
| -77% | -$51.4K |
|
|
EXAI
7899
DELISTED
Exscientia Plc American Depositary Shares
EXAI
| $15K | ﹤0.01% |
+1,388
| New | +$16.6K |
|
|
ENSV
7900
DELISTED
Enservco Corp.
ENSV
| $15K | ﹤0.01% |
+7,830
| New | +$19.5K |
|
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.