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 | |
|---|---|---|---|---|---|---|
2526
CALL
Century Aluminum
CENX
$4.44B
| $1.08M | ﹤0.01% |
146,900
+112,700
| +330% | +$1.75M |
|
2527
PUT
Innoviz Technologies
INVZ
$139M
| $1.08M | ﹤0.01% |
276,100
+33,200
| +14% | +$129K |
|
|
WOW
2528
CALL
DELISTED
WideOpenWest
WOW
| $1.08M | ﹤0.01% |
59,300
+9,900
| +20% | +$199K |
|
2529
PUT
Zions Bancorporation
ZION
$10B
| $1.08M | ﹤0.01% |
21,200
+2,000
| +10% | +$114K |
|
2530
PUT
Tapestry
TPR
$29.8B
| $1.08M | ﹤0.01% |
35,300
-68,200
| -66% | -$2.23M |
|
|
VTLE
2531
PUT
DELISTED
Vital Energy
VTLE
| $1.07M | ﹤0.01% |
15,600
+100
| +0.6% | +$8.02K |
|
2532
Appian
APPN
$1.88B
| $1.07M | ﹤0.01% |
22,685
+21,985
| +3,141% | +$1.11M |
|
|
JNPR
2533
PUT
DELISTED
Juniper Networks
JNPR
| $1.07M | ﹤0.01% |
37,700
+19,800
| +111% | +$625K |
|
|
TEAD
2534
PUT
Teads Holding Co
TEAD
$79.9M
| $1.07M | ﹤0.01% |
+213,200
| New | +$1.6M |
|
|
RETA
2535
CALL
DELISTED
Reata Pharmaceuticals, Inc. Class A Common Stock
RETA
| $1.07M | ﹤0.01% |
35,300
-33,900
| -49% | -$1.01M |
|
|
SRG
2536
CALL
Seritage Growth Properties
SRG
$133M
| $1.07M | ﹤0.01% |
205,500
+131,200
| +177% | +$1.17M |
|
2537
CALL
Freshworks
FRSH
$2.99B
| $1.07M | ﹤0.01% |
81,300
-46,500
| -36% | -$724K |
|
2538
CALL
Bassett Furniture
BSET
$169M
| $1.07M | ﹤0.01% |
58,900
+58,400
| +11,680% | +$968K |
|
|
GES
2539
PUT
DELISTED
Guess Inc
GES
| $1.06M | ﹤0.01% |
62,500
-26,700
| -30% | -$555K |
|
2540
CALL
Paycom
PAYC
$7.05B
| $1.06M | ﹤0.01% |
3,800
+100
| +3% | +$29.5K |
|
2541
CALL
Microvast
MVST
$267M
| $1.06M | ﹤0.01% |
478,700
+122,600
| +34% | +$526K |
|
2542
CALL
Sturm, Ruger & Co
RGR
$620M
| $1.06M | ﹤0.01% |
16,700
-200
| -1% | -$13.4K |
|
|
SMAR
2543
PUT
DELISTED
Smartsheet Inc.
SMAR
| $1.06M | ﹤0.01% |
33,800
+8,000
| +31% | +$332K |
|
2544
CALL
Shift4
FOUR
$3.96B
| $1.06M | ﹤0.01% |
32,100
-4,500
| -12% | -$212K |
|
2545
CALL
Workhorse Group
WKHS
$30.2M
| $1.06M | ﹤0.01% |
136
-10
| -7% | -$94.4K |
|
2546
Trump Media & Technology Group
DJT
$2.65B
| $1.06M | ﹤0.01% |
43,879
+32,309
| +279% | +$1.35M |
|
2547
CALL
Encompass Health
EHC
$11.3B
| $1.06M | ﹤0.01% |
23,757
+8,044
| +51% | +$413K |
|
2548
Becton Dickinson
BDX
$43.8B
| $1.06M | ﹤0.01% |
+4,295
| New | +$1.09M |
|
2549
Global X Silver Miners ETF NEW
SIL
$4.09B
| $1.06M | ﹤0.01% |
40,852
-16,907
| -29% | -$542K |
|
|
BLUE
2550
PUT
DELISTED
bluebird bio
BLUE
| $1.05M | ﹤0.01% |
10,585
+8,400
| +384% | +$651K |
|
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.