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 | |
|---|---|---|---|---|---|---|
4151
CALL
Archrock
AROC
$6.19B
| $396K | ﹤0.01% |
43,000
+21,400
| +99% | +$183K |
|
4152
PUT
Leggett & Platt
LEG
$1.47B
| $396K | ﹤0.01% |
11,400
-29,800
| -72% | -$1.14M |
|
4153
CALL
Thryv Holdings
THRY
$184M
| $396K | ﹤0.01% |
14,100
+9,900
| +236% | +$310K |
|
4154
CALL
Xometry
XMTR
$4.58B
| $396K | ﹤0.01% |
10,800
+9,400
| +671% | +$430K |
|
|
TSP
4155
PUT
DELISTED
TuSimple Holdings Inc. Class A Common Stock
TSP
| $396K | ﹤0.01% |
32,500
-24,700
| -43% | -$428K |
|
|
GPMT
4156
CALL
Granite Point Mortgage Trust
GPMT
$63.3M
| $395K | ﹤0.01% |
35,600
+17,400
| +96% | +$199K |
|
|
EDR
4157
CALL
DELISTED
Endeavor Group Holdings, Inc.
EDR
| $395K | ﹤0.01% |
13,400
-49,200
| -79% | -$1.5M |
|
|
AVEO
4158
DELISTED
AVEO Pharmaceuticals, Inc.
AVEO
| $395K | ﹤0.01% |
70,693
+61,640
| +681% | +$254K |
|
4159
CALL
Amplitude
AMPL
$1.16B
| $394K | ﹤0.01% |
21,400
+12,300
| +135% | +$374K |
|
|
CCRN
4160
CALL
DELISTED
Cross Country Healthcare
CCRN
| $394K | ﹤0.01% |
18,200
+15,700
| +628% | +$341K |
|
4161
PUT
Icahn Enterprises
IEP
$5.26B
| $394K | ﹤0.01% |
7,600
+1,500
| +25% | +$80.4K |
|
|
LGMK
4162
CALL
DELISTED
LogicMark
LGMK
| $394K | ﹤0.01% |
359
-91
| -20% | -$124K |
|
|
XBTF
4163
CALL
DELISTED
VanEck Bitcoin Strategy ETF
XBTF
| $394K | ﹤0.01% |
8,800
+7,500
| +577% | +$306K |
|
4164
Fulcrum Therapeutics
FULC
$248M
| $393K | ﹤0.01% |
+16,627
| New | +$235K |
|
4165
Invesco CurrencyShares Swiss Franc Trust
FXF
$409M
| $393K | ﹤0.01% |
4,051
-824
| -17% | -$80.2K |
|
|
SAFM
4166
PUT
DELISTED
Sanderson Farms Inc
SAFM
| $393K | ﹤0.01% |
2,100
-6,300
| -75% | -$1.15M |
|
4167
PUT
Axcelis
ACLS
$3.69B
| $392K | ﹤0.01% |
5,200
-2,700
| -34% | -$184K |
|
|
AIV
4168
CALL
Aimco
AIV
$375M
| $392K | ﹤0.01% |
53,600
+36,000
| +205% | +$256K |
|
4169
PUT
InfuSystem Holdings
INFU
$200M
| $392K | ﹤0.01% |
40,100
-500
| -1% | -$6.42K |
|
4170
NovaGold Resources
NG
$2.55B
| $392K | ﹤0.01% |
50,779
+31,413
| +162% | +$221K |
|
|
NVEI
4171
CALL
DELISTED
Nuvei Corporation Subordinate Voting Shares
NVEI
| $392K | ﹤0.01% |
5,200
+3,400
| +189% | +$208K |
|
|
VGR
4172
CALL
DELISTED
Vector Group Ltd.
VGR
| $392K | ﹤0.01% |
41,300
+27,400
| +197% | +$305K |
|
4173
Colliers International
CIGI
$5.31B
| $391K | ﹤0.01% |
+3,005
| New | +$416K |
|
|
CVAC
4174
DELISTED
CureVac
CVAC
| $391K | ﹤0.01% |
19,972
+11,040
| +124% | +$220K |
|
4175
CALL
Helen of Troy
HELE
$672M
| $391K | ﹤0.01% |
2,000
+1,300
| +186% | +$274K |
|
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.