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 | |
|---|---|---|---|---|---|---|
476
CALL
Royal Bank of Canada
RY
$292B
| $21.4M | 0.02% |
220,700
+171,400
| +348% | +$17.5M |
|
477
PUT
CarMax
KMX
$8.98B
| $21.3M | 0.02% |
235,800
+93,700
| +66% | +$8.81M |
|
478
CALL
Cigna
CI
$74.7B
| $21.3M | 0.02% |
80,900
-2,500
| -3% | -$644K |
|
479
CALL
T-Mobile US
TMUS
$195B
| $21.1M | 0.02% |
156,900
-50,200
| -24% | -$6.55M |
|
480
PUT
SolarEdge
SEDG
$2.1B
| $21M | 0.02% |
76,800
+40,200
| +110% | +$11M |
|
481
CALL
Shell
SHEL
$266B
| $20.9M | 0.02% |
454,600
-219,800
| -33% | -$12.3M |
|
482
PUT
Ball Corp
BALL
$16.6B
| $20.9M | 0.02% |
303,400
+135,900
| +81% | +$10.3M |
|
483
PUT
Danaher
DHR
$146B
| $20.9M | 0.02% |
92,834
-33,051
| -26% | -$7.61M |
|
484
CALL
Rio Tinto
RIO
$168B
| $20.9M | 0.02% |
371,500
+5,900
| +2% | +$423K |
|
485
PUT
KLA
KLAC
$242B
| $20.8M | 0.02% |
652,000
+313,000
| +92% | +$10.5M |
|
486
CALL
Zscaler
ZS
$27.7B
| $20.7M | 0.02% |
138,700
+24,200
| +21% | +$4.28M |
|
|
VMW
487
CALL
DELISTED
VMware, Inc
VMW
| $20.7M | 0.02% |
181,500
+93,600
| +106% | +$10.6M |
|
488
State Street Financial Select Sector SPDR ETF
XLF
$55B
| $20.7M | 0.02% |
+656,918
| New | +$22.7M |
|
489
CALL
Petrobras
PBR
$130B
| $20.6M | 0.02% |
1,762,100
-360,600
| -17% | -$4.99M |
|
490
CALL
EOG Resources
EOG
$76.2B
| $20.6M | 0.02% |
186,200
+56,700
| +44% | +$7.04M |
|
491
CALL
Marriott International
MAR
$87.8B
| $20.5M | 0.02% |
151,000
-11,000
| -7% | -$1.82M |
|
492
CALL
Emerson Electric
EMR
$85.2B
| $20.5M | 0.02% |
257,800
+122,100
| +90% | +$10.8M |
|
493
PUT
US Bancorp Series B Preferred Stock
USB.PRH
$727M
| $20.5M | 0.02% |
444,700
+129,900
| +41% | +$2.58M |
|
494
PUT
Marathon Petroleum
MPC
$109B
| $20.4M | 0.02% |
248,600
-6,500
| -3% | -$608K |
|
495
CALL
ASML
ASML
$659B
| $20.4M | 0.02% |
42,800
-40,400
| -49% | -$22.6M |
|
496
CALL
Upstart Holdings
UPST
$2.73B
| $20.3M | 0.02% |
643,000
+54,100
| +9% | +$3.22M |
|
497
NVIDIA
NVDA
$5.56T
| $20.3M | 0.02% |
1,337,660
+125,910
| +10% | +$2.38M |
|
|
SCIU
498
CALL
DELISTED
Global X Scientific Beta US ETF
SCIU
| $20.3M | 0.02% |
714,700
-163,400
| -19% | -$4.63M |
|
499
PUT
McKesson
MCK
$106B
| $20.2M | 0.02% |
62,000
+7,600
| +14% | +$2.43M |
|
500
PUT
Southern Company
SO
$101B
| $20.2M | 0.02% |
283,400
+142,000
| +100% | +$10.4M |
|
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'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.