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 | |
|---|---|---|---|---|---|---|
851
CALL
Cummins
CMI
$91.7B
| $8.86M | 0.01% |
45,800
+5,600
| +14% | +$1.12M |
|
852
CALL
BILL Holdings
BILL
$4.33B
| $8.86M | 0.01% |
80,600
+48,000
| +147% | +$6.99M |
|
853
CALL
Cal-Maine
CALM
$4.28B
| $8.85M | 0.01% |
179,200
+65,700
| +58% | +$3.33M |
|
854
CALL
Consolidated Edison
ED
$41.6B
| $8.85M | 0.01% |
93,100
+56,100
| +152% | +$5.34M |
|
855
PUT
Apollo Global Management
APO
$70.7B
| $8.83M | 0.01% |
182,200
+68,400
| +60% | +$3.72M |
|
856
PUT
NRG Energy
NRG
$29.8B
| $8.82M | 0.01% |
231,000
+204,500
| +772% | +$8.36M |
|
857
PUT
Avis
CAR
$5.63B
| $8.81M | 0.01% |
59,900
+31,200
| +109% | +$6.84M |
|
858
PUT
DexCom
DXCM
$27.6B
| $8.78M | 0.01% |
117,800
+5,800
| +5% | +$529K |
|
859
CALL
Sysco
SYY
$39.7B
| $8.77M | 0.01% |
103,500
+50,800
| +96% | +$4.26M |
|
860
PUT
Waste Management
WM
$95.9B
| $8.77M | 0.01% |
57,300
-35,300
| -38% | -$5.53M |
|
861
CALL
Fortinet
FTNT
$112B
| $8.75M | 0.01% |
154,600
+14,600
| +10% | +$867K |
|
862
PUT
Steel Dynamics
STLD
$35.6B
| $8.74M | 0.01% |
132,200
-12,700
| -9% | -$1.02M |
|
863
CALL
Generac Holdings
GNRC
$11.9B
| $8.74M | 0.01% |
41,500
+24,500
| +144% | +$6.02M |
|
864
CALL
Coupang
CPNG
$27.8B
| $8.72M | 0.01% |
683,700
-428,000
| -38% | -$5.84M |
|
865
PUT
Canadian Natural Resources
CNQ
$96.9B
| $8.71M | 0.01% |
331,417
+54,318
| +20% | +$1.65M |
|
866
Mercado Libre
MELI
$91.3B
| $8.71M | 0.01% |
13,675
-278
| -2% | -$242K |
|
867
PUT
Louisiana-Pacific
LPX
$5.2B
| $8.71M | 0.01% |
166,100
+99,200
| +148% | +$6.36M |
|
868
Deere & Co
DE
$170B
| $8.69M | 0.01% |
+29,032
| New | +$10.7M |
|
869
CALL
Synopsys
SNPS
$71.5B
| $8.69M | 0.01% |
28,600
+13,800
| +93% | +$4.16M |
|
|
TYNS
870
CALL
DELISTED
Direxion Daily 7-10 Year Treasury Bear 1X Shares
TYNS
| $8.67M | 0.01% |
147,100
+13,500
| +10% | +$796K |
|
871
CALL
Scorpio Tankers
STNG
$3.96B
| $8.67M | 0.01% |
251,200
-152,800
| -38% | -$4.42M |
|
872
CALL
Dropbox
DBX
$6.81B
| $8.67M | 0.01% |
412,900
+159,300
| +63% | +$3.45M |
|
|
MRTX
873
CALL
DELISTED
Mirati Therapeutics, Inc. Common Stock
MRTX
| $8.67M | 0.01% |
129,100
+122,100
| +1,744% | +$7.76M |
|
874
Marvell Technology
MRVL
$174B
| $8.65M | 0.01% |
198,820
+4,153
| +2% | +$235K |
|
875
CALL
Equinor
EQNR
$95.9B
| $8.6M | 0.01% |
247,500
+37,500
| +18% | +$1.34M |
|
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.