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 | |
|---|---|---|---|---|---|---|
2026
CALL
Denison Mines
DNN
$2.63B
| $1.72M | ﹤0.01% |
1,772,200
+314,600
| +22% | +$404K |
|
2027
ProShares UltraPro Short Dow 30
SDOW
$171M
| $1.72M | ﹤0.01% |
11,605
+110
| +1% | +$14.4K |
|
2028
CALL
Blink Charging
BLNK
$75.2M
| $1.72M | ﹤0.01% |
103,800
+27,700
| +36% | +$520K |
|
2029
PUT
FLEX LNG
FLNG
$1.67B
| $1.71M | ﹤0.01% |
62,600
+53,900
| +620% | +$1.51M |
|
|
2030
PUT
Blink Charging
BLNK
$75.2M
| $1.71M | ﹤0.01% |
103,600
+51,000
| +97% | +$957K |
|
2031
CALL
Unum
UNM
$13.8B
| $1.71M | ﹤0.01% |
50,300
+13,100
| +35% | +$443K |
|
2032
Intuit
INTU
$81.1B
| $1.71M | ﹤0.01% |
4,436
-24,569
| -85% | -$10.2M |
|
2033
CALL
Calumet Specialty Products
CLMT
$3.63B
| $1.71M | ﹤0.01% |
164,200
+100,900
| +159% | +$1.34M |
|
2034
CALL
BHP
BHP
$213B
| $1.71M | ﹤0.01% |
269,600
+89,231
| +49% | +$5.54M |
|
2035
CALL
Owens Corning
OC
$11.5B
| $1.7M | ﹤0.01% |
22,900
+17,700
| +340% | +$1.56M |
|
2036
PUT
Transocean
RIG
$5.92B
| $1.7M | ﹤0.01% |
510,700
-350,700
| -41% | -$1.42M |
|
|
BGFV
2037
CALL
DELISTED
Big 5 Sporting Goods
BGFV
| $1.7M | ﹤0.01% |
151,600
+36,700
| +32% | +$501K |
|
2038
PUT
Church & Dwight Co
CHD
$23.1B
| $1.7M | ﹤0.01% |
18,300
-42,600
| -70% | -$4.02M |
|
2039
PUT
PVH
PVH
$3.71B
| $1.7M | ﹤0.01% |
29,800
-13,200
| -31% | -$913K |
|
|
ATSG
2040
CALL
DELISTED
Air Transport Services Group
ATSG
| $1.7M | ﹤0.01% |
59,000
+57,500
| +3,833% | +$1.75M |
|
2041
CALL
Ares Capital
ARCC
$13.5B
| $1.69M | ﹤0.01% |
94,500
-171,500
| -64% | -$3.38M |
|
2042
CALL
Macerich
MAC
$7.32B
| $1.69M | ﹤0.01% |
194,400
+41,000
| +27% | +$495K |
|
2043
PUT
Oneok
OKE
$58.7B
| $1.69M | ﹤0.01% |
30,500
-5,500
| -15% | -$357K |
|
2044
PUT
Universal Health Services
UHS
$9.43B
| $1.69M | ﹤0.01% |
16,800
-15,300
| -48% | -$1.92M |
|
2045
CALL
Celsius Holdings
CELH
$6.93B
| $1.69M | ﹤0.01% |
77,700
+29,400
| +61% | +$567K |
|
2046
CALL
Global Ship Lease
GSL
$1.57B
| $1.69M | ﹤0.01% |
102,300
+37,200
| +57% | +$820K |
|
2047
PUT
Jabil
JBL
$32.8B
| $1.69M | ﹤0.01% |
33,000
+28,300
| +602% | +$1.64M |
|
2048
CALL
Western Midstream Partners
WES
$19.6B
| $1.69M | ﹤0.01% |
69,500
+16,500
| +31% | +$422K |
|
2049
PUT
Vipshop
VIPS
$6.84B
| $1.69M | ﹤0.01% |
170,700
-156,400
| -48% | -$1.38M |
|
|
ARCH
2050
CALL
DELISTED
Arch Resources, Inc.
ARCH
| $1.69M | ﹤0.01% |
11,800
-27,500
| -70% | -$4.37M |
|
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.