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 | |
|---|---|---|---|---|---|---|
5226
Lloyds Banking Group
LYG
$90.7B
| $189K | ﹤0.01% |
78,729
-27,100
| -26% | -$72.1K |
|
|
MSB
5227
PUT
Mesabi Trust
MSB
$301M
| $189K | ﹤0.01% |
7,100
+6,600
| +1,320% | +$185K |
|
|
ORGN
5228
DELISTED
Origin Materials
ORGN
| $189K | ﹤0.01% |
960
-281
| -23% | -$49K |
|
5229
Toyota
TM
$227B
| $189K | ﹤0.01% |
1,054
-1,570
| -60% | -$294K |
|
5230
CALL
Trex
TREX
$4.56B
| $189K | ﹤0.01% |
2,900
-2,800
| -49% | -$249K |
|
|
CZOO
5231
DELISTED
Cazoo Group Ltd
CZOO
| $189K | ﹤0.01% |
+34
| New | +$259K |
|
5232
CALL
BARK
BARK
$77.6M
| $188K | ﹤0.01% |
2,550
-525
| -17% | -$37.4K |
|
5233
Ecovyst
ECVT
$1.32B
| $188K | ﹤0.01% |
+16,320
| New | +$171K |
|
|
GTLS
5234
PUT
DELISTED
Chart Industries
GTLS
| $188K | ﹤0.01% |
1,100
-4,100
| -79% | -$576K |
|
5235
CALL
HealthEquity
HQY
$8.44B
| $188K | ﹤0.01% |
2,800
-1,000
| -26% | -$54K |
|
5236
PUT
MeiraGTx Holdings
MGTX
$1.11B
| $188K | ﹤0.01% |
13,600
-1,400
| -9% | -$21.6K |
|
5237
CALL
Noodles & Co
NDLS
$105M
| $188K | ﹤0.01% |
3,938
-5,187
| -57% | -$318K |
|
5238
CALL
Willis Towers Watson
WTW
$31.7B
| $188K | ﹤0.01% |
800
-21,700
| -96% | -$4.97M |
|
|
TEN
5239
PUT
Tsakos Energy Navigation Ltd
TEN
$1.2B
| $188K | ﹤0.01% |
21,400
+1,900
| +10% | +$15.4K |
|
|
SHCR
5240
PUT
DELISTED
Sharecare, Inc. Class A Common Stock
SHCR
| $188K | ﹤0.01% |
76,400
+68,000
| +810% | +$223K |
|
|
ESTE
5241
PUT
DELISTED
Earthstone Energy Inc. Class A Common Stock
ESTE
| $188K | ﹤0.01% |
14,900
+9,300
| +166% | +$121K |
|
5242
PUT
Adient
ADNT
$1.72B
| $187K | ﹤0.01% |
4,600
-25,100
| -85% | -$1.08M |
|
5243
CALL
Atlantic Union Bankshares
AUB
$6B
| $187K | ﹤0.01% |
+5,100
| New | +$204K |
|
5244
PUT
Bionano Genomics
BNGO
$12.2M
| $187K | ﹤0.01% |
121
-92
| -43% | -$124K |
|
|
BRFS
5245
DELISTED
BRF SA
BRFS
| $187K | ﹤0.01% |
47,127
+13,464
| +40% | +$49.8K |
|
5246
CALL
First American
FAF
$7.71B
| $187K | ﹤0.01% |
2,900
-3,600
| -55% | -$256K |
|
5247
CALL
Bank OZK
OZK
$5.57B
| $187K | ﹤0.01% |
4,400
-5,700
| -56% | -$266K |
|
|
VRN
5248
CALL
DELISTED
Veren
VRN
| $187K | ﹤0.01% |
25,900
-38,800
| -60% | -$262K |
|
|
SGEN
5249
PUT
DELISTED
Seagen Inc. Common Stock
SGEN
| $187K | ﹤0.01% |
1,300
-3,100
| -70% | -$419K |
|
|
WEBR
5250
CALL
DELISTED
Weber Inc.
WEBR
| $187K | ﹤0.01% |
19,100
-31,600
| -62% | -$340K |
|
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.