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 | |
|---|---|---|---|---|---|---|
3476
Adient
ADNT
$1.62B
| $312K | ﹤0.01% |
19,057
-12,077
| -39% | -$184K |
|
3477
CALL
BBVA Argentina
BBAR
$3.92B
| $312K | ﹤0.01% |
834
+162
| +24% | +$529 |
|
|
FLG
3478
Flagstar Bank National Association
FLG
$5.74B
| $312K | ﹤0.01% |
10,219
-1,520
| -13% | -$45.7K |
|
3479
Americold
COLD
$4.17B
| $311K | ﹤0.01% |
8,584
+6,286
| +274% | +$215K |
|
3480
CALL
Trupanion
TRUP
$1.08B
| $311K | ﹤0.01% |
73
-75
| -51% | -$2.42K |
|
3481
CALL
Sibanye-Stillwater
SBSW
$6.05B
| $310K | ﹤0.01% |
359
-337
| -48% | -$2.57K |
|
3482
Stratasys
SSYS
$700M
| $310K | ﹤0.01% |
19,576
+7,477
| +62% | +$126K |
|
|
SEI
3483
CALL
Solaris Energy Infrastructure
SEI
$3.22B
| $310K | ﹤0.01% |
418
+324
| +345% | +$2.12K |
|
3484
CALL
ICICI Bank
IBN
$107B
| $309K | ﹤0.01% |
333
-262
| -44% | -$2.33K |
|
3485
Kornit Digital
KRNT
$713M
| $309K | ﹤0.01% |
5,804
+1,594
| +38% | +$60.7K |
|
3486
PUT
Elanco Animal Health
ELAN
$12.7B
| $308K | ﹤0.01% |
144
-825
| -85% | -$18.2K |
|
3487
CALL
Forward Air
FWRD
$466M
| $308K | ﹤0.01% |
62
-5
| -7% | -$245 |
|
3488
CALL
Main Street Capital
MAIN
$5B
| $308K | ﹤0.01% |
99
-130
| -57% | -$3.67K |
|
3489
PUT
Trinity Industries
TRN
$2.95B
| $308K | ﹤0.01% |
146
+6
| +4% | +$115 |
|
|
MDP
3490
PUT
DELISTED
Meredith Corporation
MDP
| $308K | ﹤0.01% |
212
-175
| -45% | -$2.55K |
|
3491
CALL
The GEO Group
GEO
$4.13B
| $307K | ﹤0.01% |
260
+104
| +67% | +$1.27K |
|
3492
CALL
Mativ Holdings
MATV
$455M
| $307K | ﹤0.01% |
92
+73
| +384% | +$2.2K |
|
3493
CALL
Manulife Financial
MFC
$73.2B
| $307K | ﹤0.01% |
226
-146
| -39% | -$1.84K |
|
3494
PUT
Terex
TEX
$7.89B
| $307K | ﹤0.01% |
164
+21
| +15% | +$334 |
|
|
BGG
3495
CALL
DELISTED
Briggs & Stratton Corp.
BGG
| $307K | ﹤0.01% |
2,348
+2,121
| +934% | +$3.89K |
|
|
REV
3496
PUT
DELISTED
Revlon, Inc.
REV
| $307K | ﹤0.01% |
311
+184
| +145% | +$2.01K |
|
3497
CALL
HF Sinclair
DINO
$16.4B
| $306K | ﹤0.01% |
105
+47
| +81% | +$1.4K |
|
3498
CALL
OneMain Financial
OMF
$7.08B
| $306K | ﹤0.01% |
125
-356
| -74% | -$8.11K |
|
3499
CALL
Compass Diversified
CODI
$755M
| $305K | ﹤0.01% |
177
+163
| +1,164% | +$2.78K |
|
|
CIM
3500
PUT
Chimera Investment
CIM
$1.05B
| $304K | ﹤0.01% |
106
-112
| -51% | -$2.88K |
|
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.