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 | Miscellaneous | 97.48% |
| 2 | Technology | 0.84% |
| 3 | Consumer Discretionary | 0.32% |
| 4 | Communication Services | 0.32% |
| 5 | Financials | 0.28% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
376
PUT
EPAM Systems
EPAM
$6.04B
| $29.2M | 0.03% |
98,900
+38,300
| +63% | +$11.7M |
|
377
CALL
Valero Energy
VLO
$107B
| $29M | 0.03% |
273,300
+120,200
| +79% | +$14.2M |
|
378
PUT
Sea Limited
SE
$68.7B
| $29M | 0.03% |
434,400
-168,500
| -28% | -$14.4M |
|
379
CALL
Lucid Motors
LCID
$1.84B
| $28.9M | 0.03% |
168,440
-3,590
| -2% | -$682K |
|
380
PUT
Okta
OKTA
$29.8B
| $28.7M | 0.03% |
317,100
+41,600
| +15% | +$4.49M |
|
381
CALL
Li Auto
LI
$12.1B
| $28.5M | 0.03% |
743,100
+106,700
| +17% | +$2.85M |
|
382
CALL
Zillow
Z
$7.78B
| $28.3M | 0.03% |
892,600
-13,800
| -2% | -$554K |
|
383
PUT
ProShares UltraShort Health Care
RXD
$3.06M
| $28.3M | 0.03% |
572,850
+240,600
| +72% | +$6.53M |
|
|
ATVI
384
CALL
DELISTED
Activision Blizzard
ATVI
| $28.3M | 0.03% |
363,900
-235,200
| -39% | -$18.3M |
|
385
CALL
Energy Transfer Partners
ET
$74B
| $28.3M | 0.03% |
2,833,400
+344,800
| +14% | +$3.86M |
|
386
PUT
DoorDash
DASH
$91.7B
| $28.3M | 0.03% |
440,400
-70,500
| -14% | -$5.6M |
|
387
PUT
Biogen
BIIB
$32.6B
| $28.1M | 0.03% |
138,000
+20,100
| +17% | +$4.11M |
|
388
Advanced Micro Devices
AMD
$780B
| $28.1M | 0.03% |
367,833
+33,305
| +10% | +$3.12M |
|
389
PUT
Trade Desk
TTD
$6.78B
| $28.1M | 0.03% |
671,000
-60,500
| -8% | -$3.31M |
|
390
CALL
Dollar General
DG
$29.4B
| $28M | 0.03% |
127,200
-59,400
| -32% | -$13.9M |
|
391
PUT
Carnival Corporation Ltd
CCL
$32.2B
| $27.9M | 0.03% |
3,228,200
-91,800
| -3% | -$1.35M |
|
392
CALL
Medtronic
MDT
$120B
| $27.8M | 0.03% |
309,900
+96,300
| +45% | +$9.76M |
|
393
PUT
Norwegian Cruise Line
NCLH
$7.15B
| $27.8M | 0.03% |
2,499,400
+485,800
| +24% | +$8.14M |
|
394
CALL
Abbott
ABT
$187B
| $27.5M | 0.03% |
253,500
-245,500
| -49% | -$27.9M |
|
395
PUT
AutoZone
AZO
$48.7B
| $27.5M | 0.03% |
12,800
-9,800
| -43% | -$20.2M |
|
396
CALL
American Tower
AMT
$81.9B
| $27.5M | 0.03% |
107,600
-8,700
| -7% | -$2.18M |
|
397
CALL
lululemon athletica
LULU
$11.1B
| $27.5M | 0.03% |
100,800
-67,600
| -40% | -$21.7M |
|
398
PUT
Best Buy
BBY
$19B
| $27.4M | 0.03% |
420,900
+221,600
| +111% | +$18.5M |
|
399
PUT
D.R. Horton
DHI
$39.9B
| $27.4M | 0.03% |
413,600
+295,300
| +250% | +$20.8M |
|
400
CALL
Toronto Dominion Bank
TD
$199B
| $27.3M | 0.03% |
416,500
+209,600
| +101% | +$15.2M |
|
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's Q2 2022 filing shows 1,404 new, 4,026 increased, 4,284 reduced and 1,790 closed positions. Its largest new stake was Alphabet (Google) Class C: 543,540 shares worth $59.4M. The largest sale was State Street SPDR S&P 500 ETF Trust, an estimated $51.5M.
By sector, the portfolio is most concentrated in Miscellaneous at 97% of assets, down from 98% a quarter earlier, followed by Technology and Consumer Discretionary.
- 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 1,404 new positions and closed 1,790 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.