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 | |
|---|---|---|---|---|---|---|
2626
CALL
Matsons
MATX
$6.22B
| $991K | ﹤0.01% |
13,600
-3,500
| -20% | -$301K |
|
2627
CALL
Interactive Brokers
IBKR
$41.1B
| $990K | ﹤0.01% |
72,000
-54,000
| -43% | -$802K |
|
|
MTTR
2628
PUT
DELISTED
Matterport, Inc. Class A Common Stock
MTTR
| $990K | ﹤0.01% |
270,500
-53,400
| -16% | -$292K |
|
|
RC
2629
PUT
Ready Capital
RC
$265M
| $989K | ﹤0.01% |
83,000
+4,700
| +6% | +$66.2K |
|
2630
PUT
Sweetgreen
SG
$733M
| $989K | ﹤0.01% |
84,900
+7,100
| +9% | +$150K |
|
|
DAY
2631
PUT
DELISTED
Dayforce
DAY
| $988K | ﹤0.01% |
21,000
-15,900
| -43% | -$883K |
|
2632
PUT
AppFolio
APPF
$5.98B
| $987K | ﹤0.01% |
10,900
+100
| +0.9% | +$10.1K |
|
2633
PUT
Equifax
EFX
$20.8B
| $987K | ﹤0.01% |
5,400
-8,500
| -61% | -$1.7M |
|
2634
PUT
United States Copper Index Fund
CPER
$750M
| $986K | ﹤0.01% |
44,400
+29,900
| +206% | +$785K |
|
2635
T-Mobile US
TMUS
$190B
| $985K | ﹤0.01% |
7,328
-8,963
| -55% | -$1.17M |
|
2636
Direxion Daily MSCI Brazil Bull 2X ETF
BRZU
$101M
| $983K | ﹤0.01% |
15,254
-4,301
| -22% | -$392K |
|
2637
PUT
Philips
PHG
$24.3B
| $983K | ﹤0.01% |
53,372
-15,149
| -22% | -$327K |
|
2638
PUT
Cognex
CGNX
$10.2B
| $982K | ﹤0.01% |
23,100
+23,000
| +23,000% | +$1.29M |
|
2639
CALL
Voyager Therapeutics
VYGR
$187M
| $982K | ﹤0.01% |
166,200
+63,600
| +62% | +$430K |
|
2640
West Pharmaceutical
WST
$23.3B
| $982K | ﹤0.01% |
3,250
-9,565
| -75% | -$3.11M |
|
2641
RingCentral
RNG
$4.5B
| $981K | ﹤0.01% |
18,787
+13,778
| +275% | +$1.05M |
|
2642
CALL
United Natural Foods
UNFI
$2.97B
| $981K | ﹤0.01% |
24,900
+2,900
| +13% | +$122K |
|
2643
PUT
WPP
WPP
$4.21B
| $981K | ﹤0.01% |
19,400
+18,700
| +2,671% | +$1.1M |
|
2644
PUT
Huntsman Corp
HUN
$2.06B
| $980K | ﹤0.01% |
34,600
-24,500
| -41% | -$827K |
|
|
RC
2645
CALL
Ready Capital
RC
$265M
| $979K | ﹤0.01% |
82,200
-12,300
| -13% | -$173K |
|
|
CUTR
2646
PUT
DELISTED
Cutera, Inc.
CUTR
| $978K | ﹤0.01% |
26,100
-500
| -2% | -$26.4K |
|
2647
CALL
Fulgent Genetics
FLGT
$556M
| $976K | ﹤0.01% |
17,900
+3,800
| +27% | +$209K |
|
2648
CALL
TherapeuticsMD
TXMD
$24M
| $976K | ﹤0.01% |
98,100
+96,208
| +5,085% | +$919K |
|
2649
CALL
BJs Wholesale Club
BJ
$12.1B
| $972K | ﹤0.01% |
15,600
-3,300
| -17% | -$207K |
|
2650
CALL
Incyte
INCY
$23.7B
| $972K | ﹤0.01% |
12,800
-2,600
| -17% | -$197K |
|
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.