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 | |
|---|---|---|---|---|---|---|
|
RKLY
2926
CALL
DELISTED
Rockley Photonics Holdings Limited
RKLY
| $768K | ﹤0.01% |
352,400
+276,400
| +364% | +$847K |
|
|
CIM
2927
PUT
Chimera Investment
CIM
$1.06B
| $767K | ﹤0.01% |
29,000
+18,467
| +175% | +$548K |
|
|
ABMD
2928
CALL
DELISTED
Abiomed Inc
ABMD
| $767K | ﹤0.01% |
3,100
-2,200
| -42% | -$594K |
|
2929
Dynatrace
DT
$12.7B
| $765K | ﹤0.01% |
+19,407
| New | +$773K |
|
|
AYX
2930
PUT
DELISTED
Alteryx Inc
AYX
| $765K | ﹤0.01% |
15,800
+4,200
| +36% | +$251K |
|
|
OSG
2931
Octave Specialty Group
OSG
$261M
| $764K | ﹤0.01% |
67,329
+60,844
| +938% | +$578K |
|
2932
PUT
Companhia Siderúrgica Nacional
SID
$1.46B
| $764K | ﹤0.01% |
260,900
-112,100
| -30% | -$473K |
|
2933
Vanguard Growth ETF
VUG
$216B
| $764K | ﹤0.01% |
+20,586
| New | +$846K |
|
2934
PUT
Corteva
CTVA
$59.5B
| $763K | ﹤0.01% |
14,100
+6,400
| +83% | +$372K |
|
|
ARR
2935
PUT
Armour Residential REIT
ARR
$2.04B
| $760K | ﹤0.01% |
21,600
+2,440
| +13% | +$90.5K |
|
2936
CALL
Kratos Defense & Security Solutions
KTOS
$9.12B
| $760K | ﹤0.01% |
54,800
-46,800
| -46% | -$728K |
|
2937
International Flavors & Fragrances
IFF
$20.2B
| $759K | ﹤0.01% |
6,379
+150
| +2% | +$18.7K |
|
2938
CALL
Vir Biotechnology
VIR
$1.49B
| $759K | ﹤0.01% |
29,800
+19,000
| +176% | +$444K |
|
2939
Teucrium Corn Fund
CORN
$180M
| $756K | ﹤0.01% |
30,078
-9,658
| -24% | -$276K |
|
|
JAMF
2940
CALL
DELISTED
Jamf
JAMF
| $755K | ﹤0.01% |
30,500
+22,600
| +286% | +$634K |
|
2941
PUT
Amplify Energy
AMPY
$152M
| $754K | ﹤0.01% |
115,300
+75,300
| +188% | +$556K |
|
|
RC
2942
Ready Capital
RC
$261M
| $754K | ﹤0.01% |
63,293
+61,109
| +2,798% | +$861K |
|
2943
Sabesp
SBS
$19.4B
| $753K | ﹤0.01% |
486,301
-815,061
| -63% | -$1.47M |
|
2944
PUT
Service Corp International
SCI
$11.7B
| $753K | ﹤0.01% |
10,900
-47,100
| -81% | -$3.22M |
|
2945
CALL
Travere Therapeutics
TVTX
$5.2B
| $753K | ﹤0.01% |
31,100
+28,300
| +1,011% | +$712K |
|
2946
LivaNova
LIVN
$4.51B
| $752K | ﹤0.01% |
12,048
-5,548
| -32% | -$393K |
|
2947
Steven Madden
SHOO
$3.22B
| $752K | ﹤0.01% |
23,366
+3,825
| +20% | +$145K |
|
2948
PUT
Opko Health
OPK
$1.25B
| $751K | ﹤0.01% |
296,900
+67,300
| +29% | +$196K |
|
2949
CALL
TransDigm Group
TDG
$73.2B
| $751K | ﹤0.01% |
1,400
-1,800
| -56% | -$1.06M |
|
|
BVH
2950
CALL
DELISTED
Bluegreen Vacations Holding Corporation
BVH
| $751K | ﹤0.01% |
30,100
+29,000
| +2,636% | +$767K |
|
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.