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 | |
|---|---|---|---|---|---|---|
4551
Carriage Services
CSV
$637M
| $207K | ﹤0.01% |
+5,223
| New | +$225K |
|
4552
Direxion Daily Regional Banks Bull 3X ETF
DPST
$460M
| $207K | ﹤0.01% |
859
-1,736
| -67% | -$536K |
|
4553
CALL
RCI Hospitality Holdings
RICK
$197M
| $207K | ﹤0.01% |
4,300
+3,200
| +291% | +$184K |
|
|
EMWP
4554
CALL
DELISTED
Eros Media World PLC
EMWP
| $207K | ﹤0.01% |
86,400
+8,700
| +11% | +$19.6K |
|
|
AIV
4555
CALL
Aimco
AIV
$383M
| $206K | ﹤0.01% |
32,200
-21,400
| -40% | -$135K |
|
4556
CALL
Patterson-UTI
PTEN
$3.74B
| $206K | ﹤0.01% |
13,100
-5,800
| -31% | -$97.4K |
|
4557
PUT
Quince Therapeutics
QNCX
$22.5M
| $206K | ﹤0.01% |
466
-246
| -35% | -$174K |
|
4558
CALL
Amkor Technology
AMKR
$12B
| $205K | ﹤0.01% |
12,100
-12,100
| -50% | -$230K |
|
4559
PUT
Cohu
COHU
$2.19B
| $205K | ﹤0.01% |
7,400
+1,900
| +35% | +$52.5K |
|
4560
Dorian LPG
LPG
$1.98B
| $205K | ﹤0.01% |
13,502
+13,334
| +7,937% | +$211K |
|
4561
CALL
Cartesian Therapeutics
RNAC
$227M
| $205K | ﹤0.01% |
5,227
+3,417
| +189% | +$101K |
|
4562
Sensus Healthcare
SRTS
$47.6M
| $205K | ﹤0.01% |
+26,760
| New | +$225K |
|
|
NMTR
4563
CALL
DELISTED
9 Meters Biopharma
NMTR
| $205K | ﹤0.01% |
39,455
+90
| +0.2% | +$848 |
|
|
TUZ
4564
CALL
DELISTED
PIMCO 1-3 Year U.S. Treasury Index Exchange-Traded Fund
TUZ
| $205K | ﹤0.01% |
2,000
+100
| +5% | +$10.3K |
|
4565
PUT
Harmony Gold Mining
HMY
$10.1B
| $204K | ﹤0.01% |
65,300
+19,800
| +44% | +$76.1K |
|
4566
iShares Core MSCI EAFE ETF
IEFA
$192B
| $204K | ﹤0.01% |
3,479
+3,087
| +788% | +$198K |
|
4567
PUT
Oscar Health
OSCR
$9.42B
| $204K | ﹤0.01% |
48,000
-8,500
| -15% | -$54.1K |
|
|
SNBR
4568
CALL
DELISTED
Sleep Number
SNBR
| $204K | ﹤0.01% |
6,600
+5,600
| +560% | +$238K |
|
|
RIDE
4569
CALL
DELISTED
Lordstown Motors Corp. Class A Common Stock
RIDE
| $204K | ﹤0.01% |
8,627
-3,346
| -28% | -$108K |
|
|
CVM.WS
4570
PUT
DELISTED
Cel-Sci Corp Series S
CVM.WS
| $204K | ﹤0.01% |
45,500
+38,800
| +579% | +$174K |
|
4571
CALL
Meritage Homes
MTH
$4.61B
| $203K | ﹤0.01% |
5,600
-9,200
| -62% | -$367K |
|
4572
PUT
Patria Investments
PAX
$1.77B
| $203K | ﹤0.01% |
15,400
+9,000
| +141% | +$142K |
|
4573
PUT
RBC Bearings
RBC
$17.8B
| $203K | ﹤0.01% |
1,100
+800
| +267% | +$142K |
|
4574
PUT
RenaissanceRe
RNR
$13.2B
| $203K | ﹤0.01% |
1,300
+800
| +160% | +$121K |
|
4575
CALL
Champion Homes
SKY
$4.41B
| $203K | ﹤0.01% |
4,300
+1,400
| +48% | +$72.2K |
|
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.