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 | |
|---|---|---|---|---|---|---|
1901
PUT
Pultegroup
PHM
$24.5B
| $1.94M | ﹤0.01% |
48,900
-8,000
| -14% | -$337K |
|
1902
PUT
Ionis Pharmaceuticals
IONS
$9.35B
| $1.94M | ﹤0.01% |
52,300
-156,400
| -75% | -$5.9M |
|
|
NEX
1903
PUT
DELISTED
NexTier Oilfield Solutions Inc.
NEX
| $1.94M | ﹤0.01% |
203,600
+195,000
| +2,267% | +$2.05M |
|
1904
CALL
GFL Environmental
GFL
$14.3B
| $1.94M | ﹤0.01% |
75,000
+6,600
| +10% | +$196K |
|
1905
BILL Holdings
BILL
$4.33B
| $1.93M | ﹤0.01% |
17,578
-25,142
| -59% | -$3.66M |
|
|
CYBR
1906
PUT
DELISTED
CyberArk
CYBR
| $1.93M | ﹤0.01% |
15,100
-15,200
| -50% | -$2.2M |
|
1907
PUT
AMN Healthcare
AMN
$1.28B
| $1.93M | ﹤0.01% |
17,600
-41,200
| -70% | -$4.08M |
|
1908
CALL
Sarepta Therapeutics
SRPT
$1.66B
| $1.93M | ﹤0.01% |
25,700
-21,600
| -46% | -$1.59M |
|
1909
PUT
Harley-Davidson
HOG
$2.68B
| $1.92M | ﹤0.01% |
60,800
-30,300
| -33% | -$1.08M |
|
|
CTRA
1910
DELISTED
Coterra Energy
CTRA
| $1.92M | ﹤0.01% |
74,540
+10,013
| +16% | +$304K |
|
1911
PUT
ATI
ATI
$27B
| $1.92M | ﹤0.01% |
84,600
+71,400
| +541% | +$1.88M |
|
1912
Caesars Entertainment
CZR
$6.1B
| $1.92M | ﹤0.01% |
50,172
+34,255
| +215% | +$1.91M |
|
1913
Nokia
NOK
$50.8B
| $1.92M | ﹤0.01% |
416,803
-45,365
| -10% | -$227K |
|
1914
EQT Corp
EQT
$33.2B
| $1.92M | ﹤0.01% |
55,837
+47,032
| +534% | +$1.94M |
|
1915
CALL
Annaly Capital Management
NLY
$16.9B
| $1.92M | ﹤0.01% |
81,250
+32,125
| +65% | +$832K |
|
1916
CALL
Waters Corp
WAT
$36.8B
| $1.92M | ﹤0.01% |
5,800
-1,100
| -16% | -$349K |
|
1917
PUT
Carlyle Group
CG
$16.3B
| $1.92M | ﹤0.01% |
60,600
-27,600
| -31% | -$1.06M |
|
|
SKX
1918
CALL
DELISTED
Skechers
SKX
| $1.92M | ﹤0.01% |
53,900
-122,900
| -70% | -$4.72M |
|
1919
PUT
Toll Brothers
TOL
$14B
| $1.92M | ﹤0.01% |
43,000
+26,200
| +156% | +$1.23M |
|
1920
Crown Holdings
CCK
$12.8B
| $1.91M | ﹤0.01% |
20,763
+14,290
| +221% | +$1.53M |
|
1921
CALL
Universal Health Services
UHS
$9.43B
| $1.91M | ﹤0.01% |
19,000
+4,900
| +35% | +$614K |
|
1922
CALL
Grab
GRAB
$13.5B
| $1.91M | ﹤0.01% |
755,800
-191,100
| -20% | -$549K |
|
|
FL
1923
CALL
DELISTED
Foot Locker
FL
| $1.91M | ﹤0.01% |
75,700
+11,800
| +18% | +$353K |
|
1924
CALL
Vermilion Energy
VET
$1.73B
| $1.91M | ﹤0.01% |
100,300
+48,900
| +95% | +$1.02M |
|
1925
KLA
KLAC
$275B
| $1.91M | ﹤0.01% |
+59,880
| New | +$2.01M |
|
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.