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 | |
|---|---|---|---|---|---|---|
4251
CALL
Renaissance International IPO ETF
IPOS
$10.7M
| $264K | ﹤0.01% |
9,000
+3,900
| +76% | +$70.8K |
|
4252
PUT
Sundial Growers
SNDL
$312M
| $264K | ﹤0.01% |
81,070
+8,960
| +12% | +$39.6K |
|
4253
Tecnoglass
TGLS
$1.99B
| $264K | ﹤0.01% |
15,076
-10,961
| -42% | -$233K |
|
4254
CALL
Sixth Street Specialty
TSLX
$1.67B
| $264K | ﹤0.01% |
14,300
+12,300
| +615% | +$260K |
|
4255
PUT
USA Compression Partners
USAC
$3.69B
| $264K | ﹤0.01% |
15,800
-39,700
| -72% | -$712K |
|
4256
CALL
Westlake Corp
WLK
$9.26B
| $264K | ﹤0.01% |
2,700
-700
| -21% | -$85.7K |
|
|
VORB
4257
CALL
DELISTED
Virgin Orbit Holdings, Inc. Common Stock
VORB
| $264K | ﹤0.01% |
69,100
+18,500
| +37% | +$91.7K |
|
|
RFP
4258
DELISTED
Resolute Forest Products Inc.
RFP
| $264K | ﹤0.01% |
20,745
-44,450
| -68% | -$614K |
|
|
MNDT
4259
DELISTED
Mandiant, Inc. Common Stock
MNDT
| $264K | ﹤0.01% |
12,117
-25,186
| -68% | -$553K |
|
|
NPTN
4260
CALL
DELISTED
NEOPHOTONICS CORP
NPTN
| $264K | ﹤0.01% |
16,800
+7,800
| +87% | +$119K |
|
4261
AbCellera Biologics
ABCL
$1.65B
| $263K | ﹤0.01% |
24,782
-26,174
| -51% | -$222K |
|
|
DCH
4262
Dauch Corp
DCH
$1.31B
| $263K | ﹤0.01% |
34,997
-31,395
| -47% | -$236K |
|
4263
CALL
Flowers Foods
FLO
$1.58B
| $263K | ﹤0.01% |
10,000
-12,200
| -55% | -$321K |
|
4264
PUT
GXO Logistics
GXO
$5.93B
| $263K | ﹤0.01% |
6,100
+400
| +7% | +$22.1K |
|
4265
United States Gasoline Fund
UGA
$146M
| $263K | ﹤0.01% |
3,879
+1,952
| +101% | +$130K |
|
4266
Chegg
CHGG
$116M
| $262K | ﹤0.01% |
13,957
-2,578
| -16% | -$59.1K |
|
4267
Cerence
CRNC
$359M
| $262K | ﹤0.01% |
+10,385
| New | +$311K |
|
4268
PUT
Edgewell Personal Care
EPC
$1.3B
| $262K | ﹤0.01% |
7,600
+4,200
| +124% | +$151K |
|
|
OPLN
4269
CALL
Openlane
OPLN
$4.28B
| $262K | ﹤0.01% |
17,800
-40,600
| -70% | -$636K |
|
|
PNNT
4270
CALL
Pennant Park Investment Corp
PNNT
$220M
| $262K | ﹤0.01% |
42,500
-17,700
| -29% | -$126K |
|
4271
CALL
Ryder
R
$9.9B
| $262K | ﹤0.01% |
3,700
-5,800
| -61% | -$425K |
|
4272
PUT
Commercial Metals
CMC
$7.53B
| $261K | ﹤0.01% |
7,900
-1,700
| -18% | -$67K |
|
4273
ProShares Ultra Energy
DIG
$80.6M
| $261K | ﹤0.01% |
8,805
+3,981
| +83% | +$151K |
|
4274
PUT
First Citizens BancShares
FCNCA
$24.7B
| $261K | ﹤0.01% |
400
-1,300
| -76% | -$848K |
|
4275
PUT
Huntington Ingalls Industries
HII
$11B
| $261K | ﹤0.01% |
1,200
+300
| +33% | +$63.4K |
|
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.