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 |
Amazon
AMZN
|
+$102M |
| 2 |
TSMC
TSM
|
+$27.8M |
| 3 |
JPMorgan Chase
JPM
|
+$22.4M |
| 4 |
Boeing
BA
|
+$19.4M |
| 5 |
ExxonMobil
XOM
|
+$14.7M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
SPDR Gold Trust
GLD
|
+$95.5M |
| 2 |
Invesco QQQ Trust
QQQ
|
+$79.6M |
| 3 |
Tesla
TSLA
|
+$75.3M |
| 4 |
NVIDIA
NVDA
|
+$51.6M |
| 5 |
iShares MSCI EAFE ETF
EFA
|
+$40.5M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Consumer Discretionary | 0.53% |
| 2 | Technology | 0.4% |
| 3 | Healthcare | 0.22% |
| 4 | Financials | 0.21% |
| 5 | Communication Services | 0.18% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
951
CALL
Logitech
LOGI
$14.8B
| $4.38M | 0.01% |
567
-1,012
| -64% | -$72.3K |
|
952
PUT
AGNC Investment
AGNC
$12.3B
| $4.38M | 0.01% |
3,148
+432
| +16% | +$5.95K |
|
|
TTCF
953
CALL
DELISTED
Tattooed Chef, Inc Class A Common Stock
TTCF
| $4.38M | 0.01% |
1,851
+1,847
| +46,175% | +$33.7K |
|
954
CALL
Becton Dickinson
BDX
$42.1B
| $4.35M | 0.01% |
192
-77
| -29% | -$18.9K |
|
955
PUT
CF Industries
CF
$19.5B
| $4.35M | 0.01% |
1,416
-220
| -13% | -$7.01K |
|
956
CALL
Philips
PHG
$25.3B
| $4.33M | 0.01% |
1,132
-845
| -43% | -$33.9K |
|
957
PUT
American Electric Power
AEP
$73.4B
| $4.32M | 0.01% |
529
+65
| +14% | +$5.35K |
|
958
PUT
ARK Blockchain & Fintech Innovation ETF
ARKF
$723M
| $4.32M | 0.01% |
+564
| New | +$20.9K |
|
959
PUT
Vornado Realty Trust
VNO
$7.34B
| $4.31M | 0.01% |
1,278
+570
| +81% | +$20.3K |
|
960
TripAdvisor
TRIP
$1.57B
| $4.29M | 0.01% |
219,163
+67,114
| +44% | +$1.41M |
|
961
CALL
New York Times
NYT
$11.4B
| $4.29M | 0.01% |
1,003
+864
| +622% | +$37.8K |
|
|
UNIT
962
PUT
Uniti Group
UNIT
$2.68B
| $4.29M | 0.01% |
4,070
-167
| -4% | -$1.62K |
|
963
Spotify
SPOT
$96.4B
| $4.28M | 0.01% |
17,653
-23,877
| -57% | -$6.17M |
|
964
PUT
Consolidated Edison
ED
$41.6B
| $4.28M | 0.01% |
550
+284
| +107% | +$21K |
|
965
PUT
Synopsys
SNPS
$71.5B
| $4.28M | 0.01% |
200
-72
| -26% | -$14.7K |
|
966
CALL
Arista Networks
ANET
$222B
| $4.26M | 0.01% |
3,296
-3,440
| -51% | -$47.3K |
|
967
PUT
Nucor
NUE
$54.9B
| $4.26M | 0.01% |
949
-604
| -39% | -$26.8K |
|
|
GWPH
968
CALL
DELISTED
GW Pharmaceuticals Plc American Depositary Shares
GWPH
| $4.24M | 0.01% |
436
+318
| +269% | +$36.6K |
|
|
969
CALL
Consolidated Edison
ED
$41.6B
| $4.24M | 0.01% |
545
+316
| +138% | +$23.3K |
|
970
PUT
Omnicom Group
OMC
$22.2B
| $4.24M | 0.01% |
856
+144
| +20% | +$7.71K |
|
971
PUT
Sempra
SRE
$61.1B
| $4.24M | 0.01% |
716
+232
| +48% | +$14.3K |
|
|
972
CALL
Synopsys
SNPS
$71.5B
| $4.24M | 0.01% |
198
-90
| -31% | -$18.3K |
|
973
PUT
Corning
GLW
$134B
| $4.23M | 0.01% |
1,304
+303
| +30% | +$9.36K |
|
974
PUT
Devon Energy
DVN
$52.2B
| $4.22M | 0.01% |
4,465
+1,523
| +52% | +$16K |
|
975
PUT
Wingstop
WING
$3.67B
| $4.22M | 0.01% |
309
-148
| -32% | -$21.7K |
|
Similar funds
Simplex Trading's Q3 2020 Portfolio in Review
As of Q3 2020, Simplex Trading held 9,056 positions worth $73.5B, up 17% from $62.7B the previous quarter. Its ten largest holdings account for 43% of the portfolio.
Simplex Trading's Q3 2020 filing shows 1,403 new, 3,135 increased, 3,122 reduced and 1,191 closed positions. Its largest new stake was Goldman Sachs: 60,397 shares worth $12.1M. The largest sale was SPDR Gold Trust, an estimated $95.5M.
By sector, the portfolio is most concentrated in Consumer Discretionary at 0.53% of assets, up from 0.47% a quarter earlier, followed by Technology and Healthcare.
- Simplex Trading's largest Q3 2020 buy was Goldman Sachs: 60,397 shares worth $12.1M.
- Simplex Trading added most to Amazon in Q3 2020, an estimated $102M increase.
- Simplex Trading's biggest Q3 2020 reduction was SPDR Gold Trust, cutting an estimated $95.5M.
- Simplex Trading fully exited iShares MSCI EAFE ETF in Q3 2020, selling an estimated $40.5M.
- Simplex Trading's ten largest holdings make up 43% of its $73.5B portfolio in Q3 2020.
- Simplex Trading opened 1,403 new positions and closed 1,191 in Q3 2020.
- Simplex Trading's portfolio value rose 17% quarter-over-quarter to $73.5B.
Based on Simplex Trading's 13F filing for Q3 2020, filed 14 Oct 2020.