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 | |
|---|---|---|---|---|---|---|
451
CALL
Kroger
KR
$34.2B
| $23.1M | 0.02% |
487,100
+268,700
| +123% | +$14.3M |
|
452
CALL
Electronic Arts
EA
$52.4B
| $23M | 0.02% |
189,400
+20,600
| +12% | +$2.63M |
|
|
PARA
453
CALL
DELISTED
Paramount Global Class B
PARA
| $23M | 0.02% |
930,000
-1,069,700
| -53% | -$32.6M |
|
454
PUT
Colgate-Palmolive
CL
$72.1B
| $22.8M | 0.02% |
284,400
+149,700
| +111% | +$11.7M |
|
455
CALL
Robinhood
HOOD
$91.2B
| $22.7M | 0.02% |
2,767,600
-595,500
| -18% | -$5.8M |
|
456
PUT
Expedia Group
EXPE
$30.9B
| $22.7M | 0.02% |
239,100
-11,000
| -4% | -$1.56M |
|
457
CALL
Phillips 66
PSX
$83B
| $22.7M | 0.02% |
276,300
+93,400
| +51% | +$8.64M |
|
458
ProShares UltraPro QQQ
TQQQ
$32.2B
| $22.6M | 0.02% |
1,887,292
+660,956
| +54% | +$11.7M |
|
459
PUT
Dominion Energy
D
$62.8B
| $22.4M | 0.02% |
281,200
-111,800
| -28% | -$9.23M |
|
460
CALL
Nucor
NUE
$54.9B
| $22.2M | 0.02% |
213,000
+63,900
| +43% | +$8.65M |
|
461
CALL
Eaton
ETN
$161B
| $22.1M | 0.02% |
175,600
+87,100
| +98% | +$12.2M |
|
462
PUT
DraftKings
DKNG
$11.3B
| $22.1M | 0.02% |
1,894,800
-49,900
| -3% | -$703K |
|
|
PXD
463
PUT
DELISTED
Pioneer Natural Resource Co.
PXD
| $22.1M | 0.02% |
99,100
+8,800
| +10% | +$2.23M |
|
464
Chevron
CVX
$387B
| $22M | 0.02% |
+152,222
| New | +$25.2M |
|
|
MRO
465
PUT
DELISTED
Marathon Oil Corporation
MRO
| $22M | 0.02% |
977,700
+519,400
| +113% | +$13.9M |
|
|
PARA
466
DELISTED
Paramount Global Class B
PARA
| $21.9M | 0.02% |
888,135
+693,441
| +356% | +$21.1M |
|
467
PUT
Antero Resources
AR
$10.9B
| $21.9M | 0.02% |
714,500
+286,000
| +67% | +$10.5M |
|
468
PUT
Skyworks Solutions
SWKS
$9.1B
| $21.9M | 0.02% |
236,300
+69,400
| +42% | +$7.5M |
|
469
State Street SPDR S&P Oil & Gas Exploration & Production ETF
XOP
$3.45B
| $21.9M | 0.02% |
+183,093
| New | +$25.7M |
|
470
PUT
Affirm
AFRM
$23.8B
| $21.7M | 0.02% |
1,199,700
+256,200
| +27% | +$6.97M |
|
471
PUT
Marriott International
MAR
$96.1B
| $21.6M | 0.02% |
159,000
-12,900
| -8% | -$2.13M |
|
472
PUT
Twilio
TWLO
$28.1B
| $21.6M | 0.02% |
257,900
-133,300
| -34% | -$14.9M |
|
473
CALL
eBay
EBAY
$48.5B
| $21.5M | 0.02% |
516,300
-16,900
| -3% | -$824K |
|
474
PUT
Align Technology
ALGN
$12B
| $21.5M | 0.02% |
90,800
+85,100
| +1,493% | +$26.1M |
|
475
CALL
First Solar
FSLR
$22.1B
| $21.4M | 0.02% |
314,600
+9,100
| +3% | +$648K |
|
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.