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 | |
|---|---|---|---|---|---|---|
3301
Global E Online
GLBE
$6.53B
| $561K | ﹤0.01% |
27,838
+26,113
| +1,514% | +$600K |
|
3302
CALL
Pool Corp
POOL
$7B
| $561K | ﹤0.01% |
1,600
-4,200
| -72% | -$1.67M |
|
3303
Sensata Technologies
ST
$6.8B
| $561K | ﹤0.01% |
+13,600
| New | +$626K |
|
3304
CALL
AquaBounty Technologies
AQB
$4.74M
| $560K | ﹤0.01% |
16,395
+13,200
| +413% | +$403K |
|
|
OPTU
3305
CALL
Optimum Communications Inc
OPTU
$298M
| $560K | ﹤0.01% |
60,600
-122,500
| -67% | -$1.28M |
|
3306
CALL
TETRA Technologies
TTI
$1.07B
| $560K | ﹤0.01% |
138,000
-126,700
| -48% | -$558K |
|
3307
CALL
RLX Technology
RLX
$2.43B
| $559K | ﹤0.01% |
262,900
-3,200
| -1% | -$6.44K |
|
|
SAGE
3308
DELISTED
Sage Therapeutics
SAGE
| $559K | ﹤0.01% |
17,320
-4,609
| -21% | -$154K |
|
3309
CALL
Opko Health
OPK
$1.23B
| $558K | ﹤0.01% |
220,800
+84,400
| +62% | +$246K |
|
3310
Schwab US Dividend Equity ETF
SCHD
$104B
| $558K | ﹤0.01% |
+23,385
| New | +$595K |
|
|
CD
3311
CALL
DELISTED
Chindata Group Holdings Limited American Depositary Shares
CD
| $558K | ﹤0.01% |
72,000
-3,300
| -4% | -$21.3K |
|
3312
CALL
ICL Group
ICL
$6.76B
| $557K | ﹤0.01% |
61,400
+53,900
| +719% | +$596K |
|
|
KNBE
3313
CALL
DELISTED
KnowBe4, Inc. Class A Common Stock
KNBE
| $557K | ﹤0.01% |
35,700
+4,400
| +14% | +$86.1K |
|
|
DCP
3314
CALL
DELISTED
DCP Midstream, LP
DCP
| $556K | ﹤0.01% |
18,800
-58,900
| -76% | -$2.01M |
|
3315
CALL
Amcor
AMCR
$21.6B
| $554K | ﹤0.01% |
8,920
+5,200
| +140% | +$322K |
|
3316
PUT
Invesco CurrencyShares Canadian Dollar Trust
FXC
$72.7M
| $554K | ﹤0.01% |
7,300
+4,800
| +192% | +$368K |
|
3317
CALL
Gran Tierra Energy
GTE
$226M
| $554K | ﹤0.01% |
48,240
+1,670
| +4% | +$26.6K |
|
3318
CALL
Bruker
BRKR
$9.58B
| $552K | ﹤0.01% |
8,800
-19,000
| -68% | -$1.16M |
|
3319
PUT
Clover Health Investments
CLOV
$2.28B
| $551K | ﹤0.01% |
257,800
-119,600
| -32% | -$318K |
|
3320
PUT
CenterPoint Energy
CNP
$29B
| $550K | ﹤0.01% |
18,600
-6,600
| -26% | -$203K |
|
3321
PUT
Invesco Mortgage Capital
IVR
$769M
| $550K | ﹤0.01% |
37,500
+24,980
| +200% | +$422K |
|
3322
PUT
Brighthouse Financial
BHF
$3.66B
| $549K | ﹤0.01% |
13,400
+1,600
| +14% | +$77.2K |
|
3323
PUT
Bread Financial
BFH
$4.36B
| $547K | ﹤0.01% |
14,200
-38,300
| -73% | -$1.95M |
|
3324
CALL
Qiagen
QGEN
$8.72B
| $547K | ﹤0.01% |
10,939
+282
| +3% | +$13.8K |
|
3325
ProShares Ultra Bloomberg Natural Gas
BOIL
$326M
| $546K | ﹤0.01% |
+65
| New | +$1.18M |
|
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.