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 | |
|---|---|---|---|---|---|---|
2451
CALL
Federal Realty Investment Trust
FRT
$10.9B
| $724K | ﹤0.01% |
85
+36
| +73% | +$2.91K |
|
|
MDP
2452
DELISTED
Meredith Corporation
MDP
| $724K | ﹤0.01% |
49,818
+41,045
| +468% | +$598K |
|
2453
PUT
Mercury Systems
MRCY
$6.2B
| $723K | ﹤0.01% |
92
+79
| +608% | +$6.47K |
|
2454
CALL
Precigen
PGEN
$1.93B
| $723K | ﹤0.01% |
1,450
+612
| +73% | +$2.08K |
|
|
NS
2455
CALL
DELISTED
NuStar Energy L.P.
NS
| $723K | ﹤0.01% |
507
-70
| -12% | -$931 |
|
|
SAND
2456
PUT
DELISTED
Sandstorm Gold
SAND
| $722K | ﹤0.01% |
751
-108
| -13% | -$848 |
|
2457
CALL
Pluri
PLUR
$19.2M
| $720K | ﹤0.01% |
102
+87
| +580% | +$5.68K |
|
2458
PUT
Banco Bradesco
BBD
$38.1B
| $718K | ﹤0.01% |
2,166
+172
| +9% | +$523 |
|
2459
CALL
SiriusXM
SIRI
$10B
| $718K | ﹤0.01% |
122
-17
| -12% | -$953 |
|
2460
CALL
USA Compression Partners
USAC
$3.82B
| $718K | ﹤0.01% |
662
+488
| +280% | +$4.82K |
|
2461
PUT
Viking Therapeutics
VKTX
$4.04B
| $718K | ﹤0.01% |
996
+112
| +13% | +$744 |
|
2462
PUT
CoreCivic
CXW
$3.1B
| $716K | ﹤0.01% |
765
+118
| +18% | +$1.35K |
|
|
DESP
2463
PUT
DELISTED
Despegar.com
DESP
| $716K | ﹤0.01% |
998
+904
| +962% | +$6.28K |
|
2464
PUT
Philips
PHG
$25.4B
| $716K | ﹤0.01% |
189
-100
| -35% | -$3.48K |
|
2465
Ares Capital
ARCC
$13.5B
| $715K | ﹤0.01% |
49,527
-13,940
| -22% | -$188K |
|
2466
Kohl's
KSS
$2.03B
| $715K | ﹤0.01% |
34,450
+16,853
| +96% | +$325K |
|
2467
CALL
Ubiquiti
UI
$31.8B
| $715K | ﹤0.01% |
41
-109
| -73% | -$18.3K |
|
2468
CALL
Marriott Vacations Worldwide
VAC
$3.24B
| $715K | ﹤0.01% |
87
-33
| -28% | -$2.69K |
|
2469
CALL
Foster
FSTR
$443M
| $712K | ﹤0.01% |
558
+447
| +403% | +$5.75K |
|
2470
PUT
Ameris Bancorp
ABCB
$5.89B
| $710K | ﹤0.01% |
301
+119
| +65% | +$2.79K |
|
2471
PUT
Cracker Barrel
CBRL
$1.2B
| $709K | ﹤0.01% |
64
-25
| -28% | -$2.48K |
|
2472
PUT
Nutrien
NTR
$32.7B
| $709K | ﹤0.01% |
221
-105
| -32% | -$3.65K |
|
2473
Sibanye-Stillwater
SBSW
$5.92B
| $709K | ﹤0.01% |
82,049
+40,131
| +96% | +$306K |
|
2474
PUT
Canadian National Railway
CNI
$78.3B
| $708K | ﹤0.01% |
80
+8
| +11% | +$666 |
|
2475
CALL
Packaging Corp of America
PKG
$22.7B
| $708K | ﹤0.01% |
71
-117
| -62% | -$11.1K |
|
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.