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 |
SPDR Gold Trust
GLD
|
+$31.6M |
| 2 |
iShares Silver Trust
SLV
|
+$28.1M |
| 3 |
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$25.1M |
| 4 |
JPMorgan Chase
JPM
|
+$24.5M |
| 5 |
Direxion Daily Junior Gold Miners Index Bull 2X ETF
JNUG
|
+$24M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Alphabet (Google) Class C
GOOG
|
+$51.6M |
| 2 |
Amazon
AMZN
|
+$47.4M |
| 3 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$44.7M |
| 4 |
Netflix
NFLX
|
+$38.3M |
| 5 |
NVIDIA
NVDA
|
+$31.1M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 0.49% |
| 2 | Healthcare | 0.33% |
| 3 | Consumer Discretionary | 0.32% |
| 4 | Financials | 0.16% |
| 5 | Communication Services | 0.16% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
|
SY
4201
So-Young International
SY
$221M
| $117K | ﹤0.01% |
11,443
+9,499
| +489% | +$116K |
|
4202
CALL
Theravance Biopharma
TBPH
$878M
| $117K | ﹤0.01% |
51
-2
| -4% | -$50 |
|
|
VVUS
4203
CALL
DELISTED
Vivus Inc
VVUS
| $117K | ﹤0.01% |
+326
| New | +$689 |
|
4204
PUT
Advanced Energy
AEIS
$13.2B
| $116K | ﹤0.01% |
24
+3
| +14% | +$190 |
|
4205
PUT
Forward Air
FWRD
$682M
| $116K | ﹤0.01% |
+23
| New | +$1.4K |
|
4206
PUT
Paysign
PAYS
$735M
| $116K | ﹤0.01% |
225
-39
| -15% | -$315 |
|
4207
CALL
Rogers Communications
RCI
$19.7B
| $116K | ﹤0.01% |
28
-12
| -30% | -$562 |
|
4208
CALL
DMC Global
BOOM
$153M
| $115K | ﹤0.01% |
50
-35
| -41% | -$1.26K |
|
4209
CALL
La-Z-Boy
LZB
$1.67B
| $115K | ﹤0.01% |
56
-42
| -43% | -$1.19K |
|
4210
CALL
Navient
NAVI
$867M
| $115K | ﹤0.01% |
153
-136
| -47% | -$1.62K |
|
4211
ProShares Ultra S&P500
SSO
$8.51B
| $115K | ﹤0.01% |
10,400
-147,840
| -93% | -$2.5M |
|
4212
CALL
Tronox
TROX
$958M
| $115K | ﹤0.01% |
231
+164
| +245% | +$1.36K |
|
|
BBBY
4213
DELISTED
Bed Bath & Beyond Inc
BBBY
| $115K | ﹤0.01% |
27,359
-120,400
| -81% | -$1.4M |
|
|
NBL
4214
PUT
DELISTED
Noble Energy, Inc.
NBL
| $115K | ﹤0.01% |
192
-193
| -50% | -$3.1K |
|
|
MEET
4215
CALL
DELISTED
The Meet Group, Inc. Common Stock
MEET
| $115K | ﹤0.01% |
197
-17
| -8% | -$97 |
|
4216
PUT
Cue Biopharma
CUE
$131M
| $114K | ﹤0.01% |
+3
| New | +$1.46K |
|
4217
PUT
CVR Energy
CVI
$3.58B
| $114K | ﹤0.01% |
69
+16
| +30% | +$482 |
|
4218
PUT
Eagle Bancorp
EGBN
$877M
| $114K | ﹤0.01% |
38
+28
| +280% | +$1.13K |
|
4219
Evolent Health
EVH
$527M
| $114K | ﹤0.01% |
21,102
-16,641
| -44% | -$149K |
|
4220
CALL
Extra Space Storage
EXR
$31.6B
| $114K | ﹤0.01% |
12
+10
| +500% | +$1.04K |
|
4221
Liberty Global Class C
LBTYK
$3.48B
| $114K | ﹤0.01% |
7,260
-79,020
| -92% | -$1.48M |
|
4222
CALL
Global X MSCI Norway ETF
NORW
$88.1M
| $114K | ﹤0.01% |
206
+128
| +164% | +$2.65K |
|
4223
Post Holdings
POST
$3.65B
| $114K | ﹤0.01% |
+2,106
| New | +$137K |
|
4224
PUT
Revolve Group
RVLV
$1.72B
| $114K | ﹤0.01% |
133
-748
| -85% | -$11.9K |
|
4225
CALL
Sonic Automotive
SAH
$2.51B
| $114K | ﹤0.01% |
86
-24
| -22% | -$626 |
|
Similar funds
Simplex Trading's Q1 2020 Portfolio in Review
As of Q1 2020, Simplex Trading held 8,783 positions worth $56.7B, up 24% from $45.7B the previous quarter. Its ten largest holdings account for 50% of the portfolio.
Simplex Trading's Q1 2020 filing shows 1,511 new, 3,249 increased, 2,705 reduced and 1,159 closed positions. Its largest new stake was SPDR Gold Trust: 212,230 shares worth $31.4M. The largest sale was Alphabet (Google) Class C, an estimated $51.6M.
By sector, the portfolio is most concentrated in Technology at 0.49% of assets, down from 0.75% a quarter earlier, followed by Healthcare and Consumer Discretionary.
- Simplex Trading's largest Q1 2020 buy was SPDR Gold Trust: 212,230 shares worth $31.4M.
- Simplex Trading added most to JPMorgan Chase in Q1 2020, an estimated $24.5M increase.
- Simplex Trading's biggest Q1 2020 reduction was Amazon, cutting an estimated $47.4M.
- Simplex Trading fully exited Alphabet (Google) Class C in Q1 2020, selling an estimated $51.6M.
- Simplex Trading's ten largest holdings make up 50% of its $56.7B portfolio in Q1 2020.
- Simplex Trading opened 1,511 new positions and closed 1,159 in Q1 2020.
- Simplex Trading's portfolio value rose 24% quarter-over-quarter to $56.7B.
Based on Simplex Trading's 13F filing for Q1 2020, filed 29 Apr 2020.