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 | |
|---|---|---|---|---|---|---|
|
WW
1051
PUT
DELISTED
WW International
WW
| $3.68M | 0.01% |
1,450
-470
| -24% | -$11K |
|
1052
PUT
LendingTree
TREE
$550M
| $3.68M | 0.01% |
127
-4
| -3% | -$966 |
|
1053
CALL
Perrigo
PRGO
$1.4B
| $3.67M | 0.01% |
665
+111
| +20% | +$5.85K |
|
|
JWN
1054
PUT
DELISTED
Nordstrom
JWN
| $3.67M | 0.01% |
2,369
+1,109
| +88% | +$19.5K |
|
1055
CALL
Norfolk Southern
NSC
$78.3B
| $3.67M | 0.01% |
209
-221
| -51% | -$37.4K |
|
1056
CALL
Toyota
TM
$209B
| $3.67M | 0.01% |
292
-27
| -8% | -$3.35K |
|
1057
CALL
Entegris
ENTG
$20.6B
| $3.65M | 0.01% |
619
-110
| -15% | -$6.11K |
|
1058
PUT
HealthEquity
HQY
$7.89B
| $3.65M | 0.01% |
623
+367
| +143% | +$20.3K |
|
1059
PUT
Quest Diagnostics
DGX
$25.1B
| $3.65M | 0.01% |
320
-158
| -33% | -$16.8K |
|
1060
PUT
Kimberly-Clark
KMB
$35.6B
| $3.65M | 0.01% |
258
-466
| -64% | -$64.3K |
|
1061
CALL
McCormick & Company Non-Voting
MKC
$13.5B
| $3.64M | 0.01% |
406
+206
| +103% | +$17K |
|
|
IPHI
1062
PUT
DELISTED
INPHI CORPORATION
IPHI
| $3.64M | 0.01% |
310
+142
| +85% | +$14.9K |
|
|
OPTU
1063
PUT
Optimum Communications Inc
OPTU
$340M
| $3.64M | 0.01% |
1,614
+1,133
| +236% | +$27.8K |
|
|
RDFN
1064
CALL
DELISTED
Redfin
RDFN
| $3.63M | 0.01% |
867
+65
| +8% | +$1.71K |
|
|
1065
PUT
Toyota
TM
$209B
| $3.62M | 0.01% |
288
+188
| +188% | +$23.3K |
|
1066
CALL
AMN Healthcare
AMN
$1.28B
| $3.61M | 0.01% |
799
+706
| +759% | +$33.8K |
|
1067
CALL
Albemarle
ALB
$13.8B
| $3.61M | 0.01% |
468
+167
| +55% | +$11.3K |
|
|
BBBY
1068
PUT
DELISTED
Bed Bath & Beyond Inc
BBBY
| $3.61M | 0.01% |
3,406
-3,598
| -51% | -$24.8K |
|
1069
PUT
CRISPR Therapeutics
CRSP
$4.68B
| $3.59M | 0.01% |
489
+41
| +9% | +$2.4K |
|
1070
PUT
Duke Energy
DUK
$101B
| $3.59M | 0.01% |
449
+76
| +20% | +$6.42K |
|
1071
PUT
Sherwin-Williams
SHW
$76.6B
| $3.58M | 0.01% |
186
-198
| -52% | -$35.7K |
|
1072
CALL
Teradyne
TER
$58.5B
| $3.57M | 0.01% |
422
+330
| +359% | +$22.1K |
|
1073
PUT
Tilray
TLRY
$493M
| $3.55M | 0.01% |
499
+92
| +23% | +$7.42K |
|
1074
PUT
NovoCure
NVCR
$2.32B
| $3.53M | 0.01% |
596
-582
| -49% | -$38.3K |
|
|
HZNP
1075
CALL
DELISTED
Horizon Therapeutics Public Limited Company Ordinary Shares
HZNP
| $3.52M | 0.01% |
634
+466
| +277% | +$19.9K |
|
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.