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 | |
|---|---|---|---|---|---|---|
6801
PUT
MarketWise
MKTW
$52.5M
| $39K | ﹤0.01% |
555
-315
| -36% | -$21.9K |
|
|
NEXN
6802
Nexxen International
NEXN
$573M
| $39K | ﹤0.01% |
4,521
+4,092
| +954% | +$46.9K |
|
6803
OFS Capital
OFS
$45M
| $39K | ﹤0.01% |
+3,980
| New | +$48.1K |
|
6804
Open Text
OTEX
$6.15B
| $39K | ﹤0.01% |
+1,038
| New | +$41.1K |
|
6805
CALL
Park-Ohio Holdings
PKOH
$575M
| $39K | ﹤0.01% |
+2,500
| New | +$35.1K |
|
6806
CALL
Perella Weinberg Partners
PWP
$1.29B
| $39K | ﹤0.01% |
6,700
-9,600
| -59% | -$69.5K |
|
|
HTT
6807
PUT
High Templar Tech Ltd
HTT
$379M
| $39K | ﹤0.01% |
35,900
-1,200
| -3% | -$1.17K |
|
6808
Radware
RDWR
$1.1B
| $39K | ﹤0.01% |
1,836
-11,141
| -86% | -$292K |
|
|
RTB
6809
RTB Digital
RTB
$214M
| $39K | ﹤0.01% |
108
+59
| +120% | +$56.8K |
|
|
SEE
6810
DELISTED
Sealed Air
SEE
| $39K | ﹤0.01% |
+684
| New | +$43.2K |
|
|
SF
6811
PUT
Stifel
SF
$12.6B
| $39K | ﹤0.01% |
1,050
-42,600
| -98% | -$1.77M |
|
6812
SI-BONE Inc
SIBN
$788M
| $39K | ﹤0.01% |
2,996
-5,258
| -64% | -$87.6K |
|
6813
CALL
Soluna Holdings
SLNH
$192M
| $39K | ﹤0.01% |
392
+168
| +75% | +$32.7K |
|
6814
CALL
Tredegar Corp
TG
$265M
| $39K | ﹤0.01% |
3,900
+1,600
| +70% | +$18.6K |
|
6815
CALL
AgEagle Aerial Systems
UAVS
$40.9M
| $39K | ﹤0.01% |
62
+40
| +182% | +$33.2K |
|
6816
Worksport
WKSP
$9.71M
| $39K | ﹤0.01% |
2,021
+1,141
| +130% | +$25.9K |
|
6817
PUT
Willis Towers Watson
WTW
$31.2B
| $39K | ﹤0.01% |
+200
| New | +$42.9K |
|
6818
PUT
Full Truck Alliance
YMM
$9.85B
| $39K | ﹤0.01% |
4,400
-800
| -15% | -$5.44K |
|
6819
PUT
ReWalk Robotics
LFWD
$20.3M
| $39K | ﹤0.01% |
505
-7
| -1% | -$595 |
|
|
UCB
6820
CALL
United Community Banks
UCB
$4.24B
| $39K | ﹤0.01% |
+1,300
| New | +$40K |
|
|
ORKA
6821
PUT
Oruka Therapeutics
ORKA
$5.82B
| $39K | ﹤0.01% |
1,333
+950
| +248% | +$26.9K |
|
|
ENFN
6822
DELISTED
Enfusion, Inc.
ENFN
| $39K | ﹤0.01% |
+3,862
| New | +$42.7K |
|
|
BCOV
6823
CALL
DELISTED
Brightcove, Inc.
BCOV
| $39K | ﹤0.01% |
6,200
-3,500
| -36% | -$24.7K |
|
|
CRGE
6824
DELISTED
Charge Enterprises, Inc. Common Stock
CRGE
| $39K | ﹤0.01% |
+8,212
| New | +$42.4K |
|
|
SEV
6825
DELISTED
Sono Group N.V. Common Shares
SEV
| $39K | ﹤0.01% |
13,556
+195
| +1% | +$756 |
|
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.