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
|
+$179M |
| 2 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$90.1M |
| 3 |
State Street SPDR S&P 500 ETF Trust
SPY
|
+$56M |
| 4 |
iShares Silver Trust
SLV
|
+$41.7M |
| 5 |
Advanced Micro Devices
AMD
|
+$39.8M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
State Street Financial Select Sector SPDR ETF
XLF
|
+$42.8M |
| 2 |
Verizon
VZ
|
+$42.5M |
| 3 |
Occidental Petroleum
OXY
|
+$34.7M |
| 4 |
iShares China Large-Cap ETF
FXI
|
+$33M |
| 5 |
Direxion Daily S&P 500 Bull 3x ETF
SPXL
|
+$32.7M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 0.67% |
| 2 | Consumer Discretionary | 0.37% |
| 3 | Industrials | 0.24% |
| 4 | Healthcare | 0.22% |
| 5 | Financials | 0.19% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
1076
CALL
FuboTV Inc
FUBO
$254M
| $6.48M | 0.01% |
82,183
+29,041
| +55% | +$3.39M |
|
1077
CALL
Huntsman Corp
HUN
$2.25B
| $6.47M | 0.01% |
172,400
+68,600
| +66% | +$2.58M |
|
1078
CALL
AvalonBay Communities
AVB
$27.1B
| $6.46M | 0.01% |
26,000
+17,400
| +202% | +$4.25M |
|
1079
PUT
Brookfield
BN
$101B
| $6.43M | 0.01% |
255,317
+204,847
| +406% | +$6.12M |
|
1080
Vanguard S&P 500 ETF
VOO
$967B
| $6.4M | 0.01% |
15,414
-35,641
| -70% | -$14.6M |
|
|
SNCY
1081
CALL
DELISTED
Sun Country Airlines
SNCY
| $6.39M | 0.01% |
244,300
+55,600
| +29% | +$1.45M |
|
1082
Energy Transfer Partners
ET
$70.3B
| $6.39M | 0.01% |
570,707
+196,180
| +52% | +$1.95M |
|
|
1083
PUT
AvalonBay Communities
AVB
$27.1B
| $6.38M | 0.01% |
25,700
+13,000
| +102% | +$3.18M |
|
1084
PUT
Enbridge
ENB
$123B
| $6.37M | 0.01% |
138,200
+102,400
| +286% | +$4.39M |
|
|
SHNY
1085
PUT
DELISTED
Direxion Daily Silver Miners Index Bull 2X Shares
SHNY
| $6.33M | 0.01% |
487,800
-146,300
| -23% | -$1.9M |
|
1086
HealthEquity
HQY
$7.89B
| $6.33M | 0.01% |
93,852
+86,593
| +1,193% | +$4.68M |
|
|
CFLT
1087
CALL
DELISTED
Confluent
CFLT
| $6.32M | 0.01% |
154,200
+116,100
| +305% | +$6.05M |
|
1088
lululemon athletica
LULU
$12.6B
| $6.29M | 0.01% |
17,231
+9,094
| +112% | +$2.96M |
|
1089
Novavax
NVAX
$1.29B
| $6.28M | 0.01% |
85,278
-35,639
| -29% | -$3.18M |
|
1090
American Electric Power
AEP
$73.4B
| $6.28M | 0.01% |
+62,923
| New | +$5.75M |
|
1091
PUT
LyondellBasell Industries
LYB
$19.9B
| $6.27M | 0.01% |
61,000
+37,400
| +158% | +$3.73M |
|
1092
CALL
Playtika
PLTK
$1.36B
| $6.27M | 0.01% |
324,500
+318,500
| +5,308% | +$5.67M |
|
1093
CALL
Cal-Maine
CALM
$4.18B
| $6.27M | 0.01% |
113,500
+108,900
| +2,367% | +$4.74M |
|
1094
PUT
Rocket Companies
RKT
$36.2B
| $6.25M | 0.01% |
561,900
-57,000
| -9% | -$705K |
|
1095
PUT
C.H. Robinson
CHRW
$24.2B
| $6.25M | 0.01% |
58,000
+46,500
| +404% | +$4.72M |
|
1096
CALL
Martin Marietta Materials
MLM
$32.8B
| $6.24M | 0.01% |
16,200
+1,900
| +13% | +$736K |
|
1097
PUT
ResMed
RMD
$27.8B
| $6.23M | 0.01% |
25,700
-200
| -0.8% | -$48.4K |
|
1098
Encompass Health
EHC
$11B
| $6.22M | 0.01% |
109,928
+106,069
| +2,749% | +$5.54M |
|
1099
CALL
Bumble
BMBL
$364M
| $6.21M | 0.01% |
214,400
+131,800
| +160% | +$3.64M |
|
1100
CALL
HDFC Bank
HDB
$119B
| $6.21M | 0.01% |
202,400
+150,000
| +286% | +$4.87M |
|
Similar funds
Simplex Trading's Q1 2022 Portfolio in Review
As of Q1 2022, Simplex Trading held 12,038 positions worth $109B, up 10% from $99B the previous quarter. Its ten largest holdings account for 37% of the portfolio.
Simplex Trading deployed $17.5B of net new capital in Q1 2022, opening 1,603 new positions and adding to 4,441 existing holdings. Its largest new stake was iShares 20+ Year Treasury Bond ETF: 652,921 shares worth $86.2M.
By sector, the portfolio is most concentrated in Technology at 0.67% of assets, up from 0.61% a quarter earlier, followed by Consumer Discretionary and Industrials.
On the sell side, the largest reduction was Verizon, an estimated $42.5M trimmed.
- Simplex Trading's largest Q1 2022 buy was iShares 20+ Year Treasury Bond ETF: 652,921 shares worth $86.2M.
- Simplex Trading added most to Apple in Q1 2022, an estimated $179M increase.
- Simplex Trading's biggest Q1 2022 reduction was Verizon, cutting an estimated $42.5M.
- Simplex Trading fully exited State Street Financial Select Sector SPDR ETF in Q1 2022, selling an estimated $42.8M.
- Simplex Trading's ten largest holdings make up 37% of its $109B portfolio in Q1 2022.
- Simplex Trading opened 1,603 new positions and closed 1,637 in Q1 2022.
- Simplex Trading's portfolio value rose 10% quarter-over-quarter to $109B.
Based on Simplex Trading's 13F filing for Q1 2022, filed 2 May 2022.