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 | |
|---|---|---|---|---|---|---|
1426
CALL
Regions Financial
RF
$26.3B
| $3.27M | ﹤0.01% |
174,600
+19,400
| +13% | +$400K |
|
1427
CALL
SL Green Realty
SLG
$3.88B
| $3.27M | ﹤0.01% |
70,900
+65,600
| +1,238% | +$4.17M |
|
1428
PUT
Monolithic Power Systems
MPWR
$65.5B
| $3.26M | ﹤0.01% |
8,500
-8,700
| -51% | -$3.67M |
|
1429
CALL
Church & Dwight Co
CHD
$23.1B
| $3.26M | ﹤0.01% |
35,200
+3,300
| +10% | +$312K |
|
|
XM
1430
PUT
DELISTED
Qualtrics International Inc. Class A Common Stock
XM
| $3.25M | ﹤0.01% |
259,700
+188,800
| +266% | +$3.36M |
|
1431
ARK Blockchain & Fintech Innovation ETF
ARKF
$718M
| $3.24M | ﹤0.01% |
209,295
+209,095
| +104,548% | +$4.23M |
|
1432
CALL
Legend Biotech
LEGN
$4.3B
| $3.24M | ﹤0.01% |
58,900
+50,800
| +627% | +$2.15M |
|
1433
CALL
LegalZoom.com
LZ
$1.23B
| $3.24M | ﹤0.01% |
294,800
+146,000
| +98% | +$1.93M |
|
|
JNPR
1434
CALL
DELISTED
Juniper Networks
JNPR
| $3.24M | ﹤0.01% |
113,600
-3,400
| -3% | -$107K |
|
1435
PUT
XPO
XPO
$25B
| $3.23M | ﹤0.01% |
112,929
+91,891
| +437% | +$2.92M |
|
1436
PUT
Copart
CPRT
$25.9B
| $3.22M | ﹤0.01% |
118,400
+61,200
| +107% | +$1.74M |
|
|
SAFM
1437
PUT
DELISTED
Sanderson Farms Inc
SAFM
| $3.21M | ﹤0.01% |
14,900
+12,800
| +610% | +$2.51M |
|
|
LAZR
1438
CALL
DELISTED
Luminar Technologies
LAZR
| $3.21M | ﹤0.01% |
36,047
-28,733
| -44% | -$4.59M |
|
1439
PUT
American International
AIG
$41.9B
| $3.21M | ﹤0.01% |
62,700
-119,900
| -66% | -$6.96M |
|
1440
CALL
Omega Healthcare
OHI
$15.4B
| $3.21M | ﹤0.01% |
113,700
+48,100
| +73% | +$1.37M |
|
1441
PUT
Cboe Global Markets
CBOE
$29.8B
| $3.2M | ﹤0.01% |
28,300
+8,200
| +41% | +$921K |
|
1442
CALL
Avis
CAR
$5.63B
| $3.19M | ﹤0.01% |
21,700
-3,800
| -15% | -$833K |
|
1443
CALL
Boyd Gaming
BYD
$6.47B
| $3.19M | ﹤0.01% |
64,100
+14,700
| +30% | +$850K |
|
1444
Blue Owl Capital
OWL
$6.39B
| $3.19M | ﹤0.01% |
317,744
+262,813
| +478% | +$3.15M |
|
1445
CALL
Chegg
CHGG
$108M
| $3.19M | ﹤0.01% |
169,600
+14,400
| +9% | +$330K |
|
1446
KE Holdings
BEKE
$16.8B
| $3.17M | ﹤0.01% |
176,703
-158,448
| -47% | -$2.23M |
|
|
MNDT
1447
PUT
DELISTED
Mandiant, Inc. Common Stock
MNDT
| $3.17M | ﹤0.01% |
145,100
-10,100
| -7% | -$222K |
|
1448
PUT
Weyerhaeuser
WY
$17.3B
| $3.16M | ﹤0.01% |
95,400
+2,100
| +2% | +$80.1K |
|
1449
PUT
Truist Financial
TFC
$63.2B
| $3.16M | ﹤0.01% |
66,600
-34,300
| -34% | -$1.69M |
|
1450
Home Depot
HD
$332B
| $3.16M | ﹤0.01% |
+11,507
| New | +$3.4M |
|
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.