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 | |
|---|---|---|---|---|---|---|
3551
CALL
Amphastar Pharmaceuticals
AMPH
$906M
| $452K | ﹤0.01% |
13,000
+3,200
| +33% | +$114K |
|
3552
CALL
Cemex
CX
$17B
| $452K | ﹤0.01% |
115,500
-8,200
| -7% | -$35.2K |
|
|
LNW
3553
DELISTED
Light & Wonder
LNW
| $452K | ﹤0.01% |
+9,631
| New | +$515K |
|
|
AGNT
3554
PUT
AGNT Inc
AGNT
$621M
| $451K | ﹤0.01% |
38,400
+33,900
| +753% | +$490K |
|
3555
CALL
Methanex
MEOH
$4.21B
| $451K | ﹤0.01% |
11,800
-65,800
| -85% | -$3.24M |
|
3556
Melco Resorts & Entertainment
MLCO
$2.2B
| $451K | ﹤0.01% |
78,532
+43,478
| +124% | +$255K |
|
3557
Safe Bulkers
SB
$778M
| $451K | ﹤0.01% |
118,227
-17,618
| -13% | -$75.2K |
|
3558
PUT
Schrodinger
SDGR
$1.14B
| $451K | ﹤0.01% |
17,100
-65,600
| -79% | -$1.76M |
|
|
SRG
3559
Seritage Growth Properties
SRG
$136M
| $451K | ﹤0.01% |
86,596
+15,628
| +22% | +$139K |
|
3560
CALL
Village Farms International
VFF
$241M
| $451K | ﹤0.01% |
173,000
+9,100
| +6% | +$33.1K |
|
3561
PUT
eHealth
EHTH
$42.5M
| $450K | ﹤0.01% |
48,300
-4,400
| -8% | -$44.7K |
|
|
AGCB
3562
CALL
DELISTED
Altimeter Growth Corp 2
AGCB
| $450K | ﹤0.01% |
45,700
-2,400
| -5% | -$23.6K |
|
3563
CALL
ATI
ATI
$24.6B
| $449K | ﹤0.01% |
19,800
+8,000
| +68% | +$211K |
|
|
HUT
3564
PUT
Hut 8
HUT
$10.1B
| $449K | ﹤0.01% |
67,560
+23,680
| +54% | +$354K |
|
|
BIOR
3565
CALL
DELISTED
Biora Therapeutics, Inc. Common Stock
BIOR
| $449K | ﹤0.01% |
2,568
-1,756
| -41% | -$370K |
|
|
OZON
3566
CALL
DELISTED
Ozon Holdings PLC American Depositary Shares, each ADS representing one ordinary share
OZON
| $449K | ﹤0.01% |
47,800
-1,000
| -2% | -$9.39K |
|
3567
CALL
Paysafe
PSFE
$445M
| $447K | ﹤0.01% |
19,133
-4,425
| -19% | -$143K |
|
3568
Invesco DB US Dollar Index Bearish Fund
UDN
$108M
| $447K | ﹤0.01% |
24,283
-9,864
| -29% | -$186K |
|
3569
Celldex Therapeutics
CLDX
$2.92B
| $446K | ﹤0.01% |
16,546
+4,294
| +35% | +$125K |
|
3570
Teucrium Sugar Fund
CANE
$74.1M
| $445K | ﹤0.01% |
47,757
+35,890
| +302% | +$347K |
|
3571
iShares Core S&P Mid-Cap ETF
IJH
$121B
| $445K | ﹤0.01% |
+9,850
| New | +$486K |
|
3572
Yext
YEXT
$569M
| $445K | ﹤0.01% |
93,292
-38,711
| -29% | -$215K |
|
3573
PUT
Carter's
CRI
$1.42B
| $444K | ﹤0.01% |
6,300
+5,500
| +688% | +$443K |
|
3574
Resideo Technologies
REZI
$5.34B
| $444K | ﹤0.01% |
22,891
+16,273
| +246% | +$367K |
|
3575
PUT
Rollins
ROL
$18.7B
| $443K | ﹤0.01% |
12,700
-700
| -5% | -$24K |
|
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.