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 | |
|---|---|---|---|---|---|---|
1701
EXL Service
EXLS
$4.23B
| $2.36M | ﹤0.01% |
+80,090
| New | +$2.26M |
|
1702
PUT
Sun Life Financial
SLF
$45.6B
| $2.36M | ﹤0.01% |
51,500
+51,400
| +51,400% | +$2.56M |
|
1703
PUT
Celldex Therapeutics
CLDX
$2.77B
| $2.36M | ﹤0.01% |
87,400
+23,500
| +37% | +$682K |
|
1704
PUT
MillerKnoll
MLKN
$1.5B
| $2.36M | ﹤0.01% |
89,700
+79,700
| +797% | +$2.41M |
|
1705
iShares MSCI South Korea ETF
EWY
$21.7B
| $2.35M | ﹤0.01% |
40,424
+21,296
| +111% | +$1.39M |
|
1706
CALL
Upland Software
UPLD
$12M
| $2.35M | ﹤0.01% |
16,200
+12,920
| +394% | +$1.89M |
|
1707
PUT
SentinelOne
S
$6.22B
| $2.35M | ﹤0.01% |
100,800
+61,700
| +158% | +$1.73M |
|
|
FLNA
1708
CALL
Filana Therapeutics
FLNA
$43M
| $2.35M | ﹤0.01% |
83,600
-25,500
| -23% | -$644K |
|
1709
PUT
Sibanye-Stillwater
SBSW
$5.92B
| $2.34M | ﹤0.01% |
235,200
-48,800
| -17% | -$637K |
|
1710
PUT
Schwab US Broad Market ETF
SCHB
$42.8B
| $2.34M | ﹤0.01% |
100,800
-43,800
| -30% | -$703K |
|
1711
CALL
Iron Mountain
IRM
$38.2B
| $2.34M | ﹤0.01% |
48,000
+1,400
| +3% | +$73.7K |
|
1712
PUT
TripAdvisor
TRIP
$1.59B
| $2.34M | ﹤0.01% |
131,300
-42,700
| -25% | -$1.01M |
|
|
HIMX
1713
Himax Technologies
HIMX
$2.2B
| $2.33M | ﹤0.01% |
+312,250
| New | +$2.87M |
|
1714
CALL
Kinross Gold
KGC
$28.5B
| $2.33M | ﹤0.01% |
652,300
+53,900
| +9% | +$261K |
|
|
PPLC
1715
PUT
DELISTED
PortfolioPlus S&P 500 ETF
PPLC
| $2.33M | ﹤0.01% |
275,400
-203,200
| -42% | -$1.72M |
|
1716
PUT
Rogers Corp
ROG
$2.33B
| $2.33M | ﹤0.01% |
8,900
+6,800
| +324% | +$1.81M |
|
|
KRTX
1717
PUT
DELISTED
Karuna Therapeutics, Inc. Common Stock
KRTX
| $2.33M | ﹤0.01% |
18,400
+6,200
| +51% | +$713K |
|
1718
Flex
FLEX
$43.4B
| $2.32M | ﹤0.01% |
213,007
+168,890
| +383% | +$2.09M |
|
1719
CALL
Bath & Body Works
BBWI
$4.01B
| $2.32M | ﹤0.01% |
86,500
-170,100
| -66% | -$7.38M |
|
1720
CALL
Medpace
MEDP
$16.8B
| $2.32M | ﹤0.01% |
15,500
+15,000
| +3,000% | +$2.17M |
|
1721
CALL
W.W. Grainger
GWW
$65.3B
| $2.32M | ﹤0.01% |
5,100
-1,900
| -27% | -$923K |
|
1722
PUT
Huntington Bancshares
HBAN
$35.1B
| $2.31M | ﹤0.01% |
192,300
+150,300
| +358% | +$1.99M |
|
1723
PUT
Elanco Animal Health
ELAN
$12.4B
| $2.31M | ﹤0.01% |
117,800
+96,600
| +456% | +$2.29M |
|
1724
CALL
Fiverr
FVRR
$376M
| $2.31M | ﹤0.01% |
67,100
+6,900
| +11% | +$328K |
|
1725
PUT
MasTec
MTZ
$26.7B
| $2.31M | ﹤0.01% |
32,200
+17,600
| +121% | +$1.37M |
|
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.