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 | |
|---|---|---|---|---|---|---|
3601
CALL
Arrowhead Research
ARWR
$12.1B
| $436K | ﹤0.01% |
12,400
-2,900
| -19% | -$109K |
|
3602
US Global Jets ETF
JETS
$768M
| $436K | ﹤0.01% |
26,478
-308,573
| -92% | -$6.08M |
|
3603
CALL
Mid-America Apartment Communities
MAA
$16B
| $436K | ﹤0.01% |
2,500
+2,300
| +1,150% | +$428K |
|
3604
Synchrony
SYF
$24.4B
| $436K | ﹤0.01% |
15,796
-37,695
| -70% | -$1.31M |
|
|
EXPR
3605
CALL
DELISTED
Express, Inc.
EXPR
| $436K | ﹤0.01% |
11,130
+885
| +9% | +$53.1K |
|
3606
CALL
Globant
GLOB
$1.65B
| $435K | ﹤0.01% |
2,500
-3,500
| -58% | -$713K |
|
3607
PUT
Qfin Holdings
QFIN
$1.68B
| $435K | ﹤0.01% |
25,200
-5,400
| -18% | -$80.2K |
|
|
STR
3608
PUT
DELISTED
Sitio Royalties
STR
| $435K | ﹤0.01% |
18,800
+15,200
| +422% | +$421K |
|
|
JOAN
3609
CALL
DELISTED
JOANN, Inc. Common Stock
JOAN
| $435K | ﹤0.01% |
56,200
+9,300
| +20% | +$85.3K |
|
|
RTLR
3610
CALL
DELISTED
Rattler Midstream LP Common Units
RTLR
| $435K | ﹤0.01% |
31,900
-14,600
| -31% | -$215K |
|
3611
Fomento Económico Mexicano
FMX
$41.2B
| $434K | ﹤0.01% |
6,433
+5,480
| +575% | +$405K |
|
3612
PUT
Kyndryl
KD
$3.09B
| $434K | ﹤0.01% |
44,400
+7,400
| +20% | +$86.1K |
|
3613
CALL
American Well
AMWL
$180M
| $433K | ﹤0.01% |
5,015
-2,025
| -29% | -$151K |
|
|
BCTXW
3614
CALL
DELISTED
BriaCell Therapeutics Corp Warrant
BCTXW
| $433K | ﹤0.01% |
75,200
+12,500
| +20% | +$39.9K |
|
3615
PUT
Kayne Anderson Energy Infrastructure Fund
KYN
$2.42B
| $433K | ﹤0.01% |
51,700
+34,700
| +204% | +$314K |
|
3616
PUT
Liberty Broadband Class C
LBRDK
$4.89B
| $433K | ﹤0.01% |
3,800
+3,700
| +3,700% | +$451K |
|
3617
PUT
Royalty Pharma
RPRX
$26.2B
| $433K | ﹤0.01% |
10,300
+2,200
| +27% | +$90.2K |
|
3618
CALL
Warner Music
WMG
$15.2B
| $433K | ﹤0.01% |
17,800
-14,400
| -45% | -$430K |
|
3619
Omega Healthcare
OHI
$15.3B
| $432K | ﹤0.01% |
15,327
+1,427
| +10% | +$40.6K |
|
|
ABK
3620
PUT
DELISTED
Ambac Financial Group
ABK
| $432K | ﹤0.01% |
38,100
-29,300
| -43% | -$332K |
|
3621
CALL
Century Communities
CCS
$1.98B
| $431K | ﹤0.01% |
9,600
+5,200
| +118% | +$263K |
|
3622
PUT
Ferguson
FERG
$43.9B
| $431K | ﹤0.01% |
+3,900
| New | +$472K |
|
3623
ProShares UltraShort S&P500
SDS
$435M
| $431K | ﹤0.01% |
1,714
-2,134
| -55% | -$477K |
|
|
UDMY
3624
CALL
DELISTED
Udemy
UDMY
| $431K | ﹤0.01% |
42,300
+6,300
| +18% | +$76.3K |
|
|
GPP
3625
PUT
DELISTED
Green Plains Partners LP
GPP
| $431K | ﹤0.01% |
35,400
-10,700
| -23% | -$140K |
|
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.