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 |
Invesco QQQ Trust
QQQ
|
+$77.3M |
| 2 |
SPDR Gold Trust
GLD
|
+$73.2M |
| 3 |
iShares MSCI EAFE ETF
EFA
|
+$38.5M |
| 4 |
Netflix
NFLX
|
+$38.4M |
| 5 |
NVIDIA
NVDA
|
+$36.3M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Apple
AAPL
|
+$55.9M |
| 2 |
iPath Series B S&P 500 VIX Short-Term Futures ETN
VXX
|
+$28.3M |
| 3 |
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$23.1M |
| 4 |
State Street SPDR S&P 500 ETF Trust
SPY
|
+$23.1M |
| 5 |
Adobe
ADBE
|
+$22M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 0.49% |
| 2 | Consumer Discretionary | 0.47% |
| 3 | Communication Services | 0.34% |
| 4 | Healthcare | 0.26% |
| 5 | Financials | 0.23% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
151
PUT
iShares Silver Trust
SLV
$29.1B
| $45.3M | 0.07% |
26,610
-2,549
| -9% | -$39K |
|
152
PUT
Baidu
BIDU
$36.7B
| $44.8M | 0.07% |
3,738
-435
| -10% | -$46.5K |
|
153
CALL
Biogen
BIIB
$29.8B
| $44.7M | 0.07% |
1,671
+64
| +4% | +$19.2K |
|
154
PUT
Pfizer
PFE
$142B
| $44M | 0.07% |
14,182
+7,797
| +122% | +$265K |
|
155
CALL
Wells Fargo
WFC
$263B
| $43.8M | 0.07% |
17,114
+6,179
| +57% | +$169K |
|
156
PUT
FedEx
FDX
$76.2B
| $43.7M | 0.07% |
3,119
+860
| +38% | +$108K |
|
157
PUT
PepsiCo
PEP
$185B
| $43.7M | 0.07% |
3,302
+707
| +27% | +$93.2K |
|
158
CALL
Delta Air Lines
DAL
$55.1B
| $43.2M | 0.07% |
15,389
+6,709
| +77% | +$171K |
|
159
CALL
AT&T
T
$159B
| $42.9M | 0.07% |
18,786
-4,442
| -19% | -$101K |
|
|
160
NVIDIA
NVDA
$5.02T
| $42.9M | 0.07% |
4,515,120
+4,487,120
| +16,025% | +$36.3M |
|
161
CALL
Abbott
ABT
$174B
| $42.6M | 0.07% |
4,658
+2,212
| +90% | +$200K |
|
162
PUT
Newmont
NEM
$103B
| $42.4M | 0.07% |
6,861
+2,190
| +47% | +$130K |
|
|
163
Netflix
NFLX
$293B
| $41.1M | 0.07% |
+903,310
| New | +$38.4M |
|
164
PUT
Direxion Daily S&P Oil & Gas Exp. & Prod. Bull 2X ETF
GUSH
$255M
| $40.9M | 0.07% |
26,308
+23,400
| +805% | +$204K |
|
165
CALL
Coca-Cola
KO
$355B
| $40.8M | 0.07% |
9,122
-4,241
| -32% | -$195K |
|
|
166
iShares MSCI EAFE ETF
EFA
$77.2B
| $40.5M | 0.06% |
+665,841
| New | +$38.5M |
|
167
PUT
AbbVie
ABBV
$453B
| $40.4M | 0.06% |
4,112
-1,162
| -22% | -$102K |
|
168
CALL
United Parcel Service
UPS
$99.2B
| $40.2M | 0.06% |
3,616
+518
| +17% | +$51.7K |
|
169
PUT
Blackrock
BLK
$162B
| $39.9M | 0.06% |
734
+107
| +17% | +$54K |
|
|
170
CALL
AbbVie
ABBV
$453B
| $39.6M | 0.06% |
4,031
-2,472
| -38% | -$218K |
|
171
PUT
Zscaler
ZS
$23.1B
| $39.3M | 0.06% |
3,589
+2,767
| +337% | +$230K |
|
172
PUT
Morgan Stanley
MS
$343B
| $39.2M | 0.06% |
8,107
+732
| +10% | +$30.7K |
|
173
CALL
United Airlines
UAL
$38B
| $38.9M | 0.06% |
11,249
+2,543
| +29% | +$76.3K |
|
174
PUT
Direxion Daily Technology Bull 3x ETF
TECL
$5.51B
| $38.4M | 0.06% |
99,720
+35,360
| +55% | +$625K |
|
175
PUT
Gilead Sciences
GILD
$164B
| $37.9M | 0.06% |
4,921
-2,735
| -36% | -$210K |
|
Similar funds
Simplex Trading's Q2 2020 Portfolio in Review
As of Q2 2020, Simplex Trading held 8,917 positions worth $62.7B, up 11% from $56.7B the previous quarter. Its ten largest holdings account for 44% of the portfolio.
Simplex Trading's Q2 2020 filing shows 1,290 new, 3,427 increased, 2,723 reduced and 1,278 closed positions. Its largest new stake was iShares MSCI EAFE ETF: 665,841 shares worth $40.5M. The largest sale was Apple, an estimated $55.9M.
By sector, the portfolio is most concentrated in Technology at 0.49% of assets, up from 0.49% a quarter earlier, followed by Consumer Discretionary and Communication Services.
- Simplex Trading's largest Q2 2020 buy was iShares MSCI EAFE ETF: 665,841 shares worth $40.5M.
- Simplex Trading added most to Invesco QQQ Trust in Q2 2020, an estimated $77.3M increase.
- Simplex Trading's biggest Q2 2020 reduction was Apple, cutting an estimated $55.9M.
- Simplex Trading fully exited Adobe in Q2 2020, selling an estimated $22M.
- Simplex Trading's ten largest holdings make up 44% of its $62.7B portfolio in Q2 2020.
- Simplex Trading opened 1,290 new positions and closed 1,278 in Q2 2020.
- Simplex Trading's portfolio value rose 11% quarter-over-quarter to $62.7B.
Based on Simplex Trading's 13F filing for Q2 2020, filed 13 Jul 2020.