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 | |
|---|---|---|---|---|---|---|
1126
CALL
T. Rowe Price
TROW
$24.6B
| $5.99M | 0.01% |
39,600
+9,500
| +32% | +$1.47M |
|
1127
ServiceNow
NOW
$95.1B
| $5.97M | 0.01% |
53,650
-40,350
| -43% | -$4.52M |
|
1128
CALL
Diageo
DEO
$45.7B
| $5.97M | 0.01% |
29,400
+3,600
| +14% | +$721K |
|
1129
CALL
Aptiv
APTV
$11.9B
| $5.96M | 0.01% |
49,800
+1,700
| +4% | +$226K |
|
1130
CALL
AerCap
AER
$23.4B
| $5.95M | 0.01% |
118,300
+85,900
| +265% | +$5.15M |
|
1131
PUT
Olin
OLN
$2.69B
| $5.94M | 0.01% |
113,600
+88,500
| +353% | +$4.53M |
|
1132
CALL
Invesco DB Commodity Index Tracking Fund
DBC
$1.74B
| $5.93M | 0.01% |
227,600
+85,800
| +61% | +$2.04M |
|
1133
PUT
Texas Roadhouse
TXRH
$12.5B
| $5.93M | 0.01% |
70,800
+5,800
| +9% | +$497K |
|
|
CERN
1134
CALL
DELISTED
Cerner Corp
CERN
| $5.91M | 0.01% |
63,200
+1,100
| +2% | +$102K |
|
1135
PUT
Huazhu Hotels Group
HTHT
$12.5B
| $5.9M | 0.01% |
178,900
+177,700
| +14,808% | +$6.59M |
|
1136
CALL
Dropbox
DBX
$6.63B
| $5.9M | 0.01% |
253,600
-117,300
| -32% | -$2.73M |
|
1137
PUT
United Rentals
URI
$70.9B
| $5.9M | 0.01% |
16,600
-44,800
| -73% | -$14.6M |
|
1138
Capital One
COF
$123B
| $5.89M | 0.01% |
+44,906
| New | +$6.55M |
|
1139
CALL
Range Resources
RRC
$9.08B
| $5.89M | 0.01% |
193,900
-75,200
| -28% | -$1.72M |
|
1140
CALL
HubSpot
HUBS
$9.73B
| $5.89M | 0.01% |
12,400
+400
| +3% | +$194K |
|
1141
PUT
Cooper Companies
COO
$13.7B
| $5.85M | 0.01% |
56,000
+25,600
| +84% | +$2.58M |
|
1142
CALL
Truist Financial
TFC
$62.5B
| $5.81M | 0.01% |
102,500
-24,300
| -19% | -$1.5M |
|
1143
PUT
Ubiquiti
UI
$32B
| $5.76M | 0.01% |
19,800
+18,500
| +1,423% | +$5M |
|
1144
CALL
Williams Companies
WMB
$92B
| $5.76M | 0.01% |
172,500
+22,400
| +15% | +$685K |
|
1145
PUT
Zimmer Biomet
ZBH
$17.3B
| $5.75M | 0.01% |
48,300
+35,425
| +275% | +$4.27M |
|
1146
CALL
M&T Bank
MTB
$35.6B
| $5.75M | 0.01% |
33,900
+15,200
| +81% | +$2.68M |
|
|
HUT
1147
CALL
Hut 8
HUT
$13.2B
| $5.73M | 0.01% |
207,620
+5,300
| +3% | +$162K |
|
|
1148
PUT
Truist Financial
TFC
$62.5B
| $5.72M | 0.01% |
100,900
+45,000
| +81% | +$2.78M |
|
1149
CALL
Whirlpool
WHR
$2.31B
| $5.72M | 0.01% |
33,100
+26,300
| +387% | +$5.33M |
|
1150
PUT
iShares Convertible Bond ETF
ICVT
$7.37B
| $5.72M | 0.01% |
170,200
+95,100
| +127% | +$7.88M |
|
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.