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 | |
|---|---|---|---|---|---|---|
3101
CALL
Bit Digital
BTBT
$484M
| $851K | ﹤0.01% |
236,500
-165,000
| -41% | -$693K |
|
3102
Globalstar
GSAT
$10.2B
| $851K | ﹤0.01% |
38,622
+29,137
| +307% | +$495K |
|
3103
CALL
GoPro
GPRO
$116M
| $850K | ﹤0.01% |
99,700
-12,200
| -11% | -$108K |
|
3104
ProShares UltraShort Gold
GLL
$126M
| $849K | ﹤0.01% |
7,692
+7,691
| +769,100% | +$918K |
|
3105
PUT
SSR Mining
SSRM
$5.57B
| $848K | ﹤0.01% |
39,000
+13,500
| +53% | +$254K |
|
3106
Atea Pharmaceuticals
AVIR
$379M
| $847K | ﹤0.01% |
117,345
+83,810
| +250% | +$569K |
|
3107
PUT
Colliers International
CIGI
$4.98B
| $847K | ﹤0.01% |
+6,500
| New | +$900K |
|
3108
CALL
Wyndham Hotels & Resorts
WH
$5.46B
| $846K | ﹤0.01% |
10,000
-100
| -1% | -$8.52K |
|
|
TUP
3109
CALL
DELISTED
Tupperware Brands Corporation
TUP
| $846K | ﹤0.01% |
43,500
+28,400
| +188% | +$484K |
|
|
JKS
3110
CALL
JinkoSolar
JKS
$775M
| $845K | ﹤0.01% |
17,500
-28,300
| -62% | -$1.3M |
|
3111
PUT
Energy Fuels
UUUU
$2.82B
| $845K | ﹤0.01% |
92,400
+6,200
| +7% | +$48.3K |
|
|
WCC
3112
CALL
WESCO International
WCC
$16.2B
| $845K | ﹤0.01% |
6,500
-4,600
| -41% | -$576K |
|
3113
PUT
Zevra Therapeutics
ZVRA
$563M
| $844K | ﹤0.01% |
167,800
-43,700
| -21% | -$278K |
|
3114
BioMarin Pharmaceuticals
BMRN
$11.5B
| $843K | ﹤0.01% |
10,942
-15,523
| -59% | -$1.3M |
|
3115
Intercontinental Exchange
ICE
$82.4B
| $843K | ﹤0.01% |
6,385
-17,337
| -73% | -$2.24M |
|
3116
CALL
Keros Therapeutics
KROS
$199M
| $842K | ﹤0.01% |
15,500
+7,700
| +99% | +$395K |
|
|
PING
3117
PUT
DELISTED
Ping Identity Holding Corp.
PING
| $842K | ﹤0.01% |
30,700
-64,800
| -68% | -$1.36M |
|
|
CVGW
3118
PUT
DELISTED
Calavo Growers
CVGW
| $841K | ﹤0.01% |
23,100
+20,900
| +950% | +$852K |
|
3119
CALL
CryoPort
CYRX
$775M
| $841K | ﹤0.01% |
24,100
+16,500
| +217% | +$624K |
|
|
RFP
3120
DELISTED
Resolute Forest Products Inc.
RFP
| $841K | ﹤0.01% |
65,195
-27,175
| -29% | -$365K |
|
3121
CALL
Karyopharm Therapeutics
KPTI
$168M
| $839K | ﹤0.01% |
7,593
+2,586
| +52% | +$322K |
|
3122
PUT
Paysafe
PSFE
$407M
| $839K | ﹤0.01% |
20,625
-4,833
| -19% | -$200K |
|
3123
Crinetics Pharmaceuticals
CRNX
$8.86B
| $837K | ﹤0.01% |
38,154
+17,874
| +88% | +$362K |
|
3124
CALL
Destination XL Group
DXLG
$34.7M
| $836K | ﹤0.01% |
171,500
+85,800
| +100% | +$413K |
|
3125
PUT
Fulgent Genetics
FLGT
$559M
| $836K | ﹤0.01% |
13,400
+2,400
| +22% | +$158K |
|
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.