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 | |
|---|---|---|---|---|---|---|
101
CALL
Walmart Inc
WMT
$878B
| $146M | 0.13% |
2,940,900
-1,712,700
| -37% | -$80.4M |
|
|
KFYP
102
CALL
DELISTED
KraneShares CICC China Leaders 100 Index ETF
KFYP
| $145M | 0.13% |
5,024,200
+2,962,400
| +144% | +$86.2M |
|
103
CALL
Costco
COST
$412B
| $145M | 0.13% |
251,900
-119,700
| -32% | -$62.8M |
|
|
104
CALL
Occidental Petroleum
OXY
$56.2B
| $142M | 0.13% |
2,511,100
+1,414,900
| +129% | +$62.6M |
|
105
CALL
ARK Space & Defense Innovation ETF
ARKX
$823M
| $142M | 0.13% |
2,423,000
+1,459,800
| +152% | +$24.8M |
|
106
PUT
Wells Fargo
WFC
$261B
| $141M | 0.13% |
2,914,800
+852,300
| +41% | +$45.6M |
|
|
107
PUT
Occidental Petroleum
OXY
$56.2B
| $141M | 0.13% |
2,479,100
+893,900
| +56% | +$39.5M |
|
108
CALL
Moderna
MRNA
$23.7B
| $137M | 0.13% |
794,100
-98,200
| -11% | -$16.5M |
|
109
CALL
AbbVie
ABBV
$448B
| $136M | 0.12% |
840,400
+228,900
| +37% | +$33.3M |
|
|
110
PUT
Walmart Inc
WMT
$878B
| $131M | 0.12% |
2,639,400
+689,100
| +35% | +$32.4M |
|
111
CALL
Goldman Sachs
GS
$311B
| $131M | 0.12% |
396,400
-93,400
| -19% | -$33M |
|
112
PUT
Zoom
ZM
$26.3B
| $129M | 0.12% |
1,096,400
+463,100
| +73% | +$63M |
|
113
PUT
Chevron
CVX
$381B
| $128M | 0.12% |
786,400
+77,500
| +11% | +$11.1M |
|
114
CALL
Johnson & Johnson
JNJ
$599B
| $127M | 0.12% |
719,000
+115,800
| +19% | +$19.7M |
|
115
CALL
United States Oil Fund
USO
$2.31B
| $125M | 0.11% |
1,689,400
-551,500
| -25% | -$37.1M |
|
116
CALL
AMC Entertainment Holdings
AMC
$1.96B
| $124M | 0.11% |
502,600
+224,600
| +81% | +$41.8M |
|
117
CALL
Booking.com
BKNG
$139B
| $124M | 0.11% |
1,317,500
+315,000
| +31% | +$29.4M |
|
|
118
PUT
iShares Silver Trust
SLV
$28.4B
| $124M | 0.11% |
5,405,600
+2,381,600
| +79% | +$52.9M |
|
119
PUT
GE Aerospace
GE
$354B
| $122M | 0.11% |
2,140,552
+123,432
| +6% | +$7.36M |
|
|
UWC
120
PUT
DELISTED
PROSHARES TR ULTRA RUSSELL3000
UWC
| $121M | 0.11% |
2,082,200
+521,400
| +33% | +$30.3M |
|
121
PUT
iShares MSCI Australia ETF
EWA
$1.34B
| $120M | 0.11% |
3,193,200
+499,000
| +19% | +$12.2M |
|
122
CALL
Coinbase
COIN
$46.3B
| $119M | 0.11% |
626,500
-21,800
| -3% | -$4.26M |
|
123
PUT
Morgan Stanley
MS
$332B
| $118M | 0.11% |
1,352,200
-189,800
| -12% | -$18.3M |
|
124
CALL
Airbnb
ABNB
$86B
| $118M | 0.11% |
688,000
+109,200
| +19% | +$17.4M |
|
125
PUT
American Airlines Group
AAL
$10.1B
| $118M | 0.11% |
6,449,800
+1,455,800
| +29% | +$24.7M |
|
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.