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 | |
|---|---|---|---|---|---|---|
|
PLG
5051
PUT
Platinum Group Metals
PLG
$164M
| $144K | ﹤0.01% |
109,800
-5,500
| -5% | -$9.48K |
|
5052
CALL
Ring Energy
REI
$315M
| $144K | ﹤0.01% |
54,500
-93,200
| -63% | -$386K |
|
5053
PUT
RPC Inc
RES
$1.24B
| $144K | ﹤0.01% |
20,900
-7,600
| -27% | -$72.5K |
|
|
PGRU
5054
DELISTED
PropertyGuru Group Limited
PGRU
| $144K | ﹤0.01% |
+32,143
| New | +$204K |
|
5055
PUT
Darling Ingredients
DAR
$9.64B
| $143K | ﹤0.01% |
2,400
-13,000
| -84% | -$987K |
|
|
MASI
5056
CALL
DELISTED
Masimo
MASI
| $143K | ﹤0.01% |
1,100
-8,200
| -88% | -$1.1M |
|
|
MASI
5057
PUT
DELISTED
Masimo
MASI
| $143K | ﹤0.01% |
1,100
+100
| +10% | +$13.4K |
|
5058
PUT
Offerpad Solutions
OPAD
$18.3M
| $143K | ﹤0.01% |
438
+335
| +325% | +$225K |
|
5059
ScottsMiracle-Gro
SMG
$3.82B
| $143K | ﹤0.01% |
+1,815
| New | +$179K |
|
5060
CALL
United Bankshares
UBSI
$6.63B
| $143K | ﹤0.01% |
4,100
+900
| +28% | +$31.6K |
|
5061
CALL
Vericel Corp
VCEL
$2.35B
| $143K | ﹤0.01% |
5,700
+5,600
| +5,600% | +$165K |
|
5062
Zevra Therapeutics
ZVRA
$562M
| $143K | ﹤0.01% |
32,282
-3,863
| -11% | -$17.6K |
|
|
GATO
5063
PUT
DELISTED
Gatos Silver, Inc.
GATO
| $143K | ﹤0.01% |
50,000
-35,700
| -42% | -$125K |
|
|
NTBL
5064
DELISTED
Notable Labs, Ltd. Ordinary Shares
NTBL
| $143K | ﹤0.01% |
+2,552
| New | +$139K |
|
5065
CRISPR Therapeutics
CRSP
$4.73B
| $142K | ﹤0.01% |
2,340
-14,298
| -86% | -$841K |
|
5066
CALL
Envista
NVST
$4.44B
| $142K | ﹤0.01% |
3,700
-148,300
| -98% | -$6.23M |
|
5067
CALL
Regency Centers
REG
$14.7B
| $142K | ﹤0.01% |
2,400
-800
| -25% | -$53K |
|
5068
Sutro Biopharma
STRO
$401M
| $142K | ﹤0.01% |
2,740
+2,700
| +6,750% | +$151K |
|
5069
CALL
The Beachbody Company
BODI
$70.6M
| $142K | ﹤0.01% |
2,380
+12
| +0.5% | +$972 |
|
|
SILV
5070
CALL
DELISTED
SilverCrest Metals Inc. Common Shares
SILV
| $142K | ﹤0.01% |
23,300
-58,500
| -72% | -$443K |
|
|
SDC
5071
PUT
DELISTED
SmileDirectClub, Inc. Class A Common Stock
SDC
| $142K | ﹤0.01% |
137,000
-76,100
| -36% | -$123K |
|
|
IRNT
5072
DELISTED
IronNet, Inc.
IRNT
| $142K | ﹤0.01% |
64,591
+42,924
| +198% | +$121K |
|
5073
CarGurus
CARG
$3.27B
| $141K | ﹤0.01% |
6,596
+2,543
| +63% | +$75.3K |
|
5074
Gaotu Techedu
GOTU
$434M
| $141K | ﹤0.01% |
72,441
+24,547
| +51% | +$39.4K |
|
5075
PUT
Holley
HLLY
$321M
| $141K | ﹤0.01% |
13,500
+7,900
| +141% | +$86.1K |
|
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.