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 | |
|---|---|---|---|---|---|---|
601
CALL
Enterprise Products Partners
EPD
$84.1B
| $16.2M | 0.02% |
664,000
+276,500
| +71% | +$7.27M |
|
602
CALL
D.R. Horton
DHI
$39.9B
| $16.1M | 0.02% |
243,700
-157,300
| -39% | -$11.1M |
|
603
CALL
Aon
AON
$68.5B
| $16.1M | 0.02% |
59,800
+43,600
| +269% | +$12.5M |
|
604
PUT
Match Group
MTCH
$9.61B
| $16.1M | 0.02% |
231,400
-100,900
| -30% | -$8.18M |
|
605
CALL
Macy's
M
$6.06B
| $16M | 0.02% |
875,100
+351,400
| +67% | +$7.95M |
|
606
CALL
Cheniere Energy
LNG
$60.3B
| $15.9M | 0.02% |
119,700
+11,200
| +10% | +$1.53M |
|
607
PUT
PNC Financial Services
PNC
$98B
| $15.9M | 0.02% |
100,800
-26,900
| -21% | -$4.51M |
|
608
CALL
Zoetis
ZTS
$31.3B
| $15.9M | 0.02% |
94,000
-400
| -0.4% | -$69.2K |
|
609
PUT
Northrop Grumman
NOC
$73.2B
| $15.8M | 0.02% |
33,100
-13,800
| -29% | -$6.34M |
|
610
CALL
United Rentals
URI
$62.9B
| $15.8M | 0.02% |
65,200
+31,800
| +95% | +$9.36M |
|
611
PUT
Southwest Airlines
LUV
$19.4B
| $15.7M | 0.02% |
435,200
-29,800
| -6% | -$1.28M |
|
612
NIO
NIO
$9.52B
| $15.6M | 0.02% |
719,369
-440,092
| -38% | -$8.08M |
|
613
CALL
Workday
WDAY
$47.2B
| $15.6M | 0.02% |
111,600
+76,100
| +214% | +$13.8M |
|
614
CALL
Markel Group
MKL
$22.6B
| $15.5M | 0.02% |
12,000
+9,100
| +314% | +$12.5M |
|
615
PUT
Chubb
CB
$132B
| $15.5M | 0.02% |
78,700
+59,200
| +304% | +$12.2M |
|
616
State Street Utilities Select Sector SPDR ETF
XLU
$22.4B
| $15.3M | 0.02% |
437,718
+358,624
| +453% | +$13M |
|
617
Zoom
ZM
$29.6B
| $15.3M | 0.02% |
+142,110
| New | +$15M |
|
618
CALL
Ulta Beauty
ULTA
$24.1B
| $15.3M | 0.02% |
39,800
+7,600
| +24% | +$3.02M |
|
619
CALL
Danaher
DHR
$146B
| $15.3M | 0.02% |
68,018
+38,464
| +130% | +$8.86M |
|
620
Wells Fargo
WFC
$272B
| $15.3M | 0.02% |
390,214
+376,596
| +2,765% | +$16.5M |
|
621
PUT
Medtronic
MDT
$120B
| $15.2M | 0.02% |
169,900
-2,300
| -1% | -$233K |
|
622
PUT
Vertex Pharmaceuticals
VRTX
$138B
| $15.2M | 0.02% |
54,100
-43,100
| -44% | -$11.5M |
|
623
PUT
ON Semiconductor
ON
$29B
| $15.2M | 0.02% |
302,100
+24,900
| +9% | +$1.39M |
|
624
CALL
AstraZeneca
AZN
$252B
| $15.2M | 0.02% |
114,850
-121,900
| -51% | -$16M |
|
625
CALL
United States Natural Gas Fund
UNG
$572M
| $15.2M | 0.02% |
199,450
-18,225
| -8% | -$1.88M |
|
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.