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 |
Goldman Sachs
GS
|
+$40.4M |
| 2 |
NVIDIA
NVDA
|
+$23.1M |
| 3 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$21.5M |
| 4 |
Wells Fargo
WFC
|
+$20.8M |
| 5 |
Micron Technology
MU
|
+$20M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Citigroup
C
|
+$21.4M |
| 2 |
Apple
AAPL
|
+$15.7M |
| 3 |
Invesco QQQ Trust
QQQ
|
+$14.4M |
| 4 |
Eli Lilly
LLY
|
+$10.5M |
| 5 |
iShares Biotechnology ETF
IBB
|
+$8.06M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 9.73% |
| 2 | Communication Services | 9.25% |
| 3 | Consumer Discretionary | 8.76% |
| 4 | Healthcare | 8.53% |
| 5 | Financials | 7.38% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
726
CALL
United Rentals
URI
$73B
| $452K | 0.02% |
594
-33
| -5% | -$4.01K |
|
|
TIME
727
DELISTED
Time Inc.
TIME
| $452K | 0.02% |
+23,379
| New | +$443K |
|
728
Franklin Resources
BEN
$16.8B
| $451K | 0.02% |
+10,706
| New | +$444K |
|
|
CBM
729
DELISTED
Cambrex Corporation
CBM
| $451K | 0.02% |
8,198
+6,924
| +543% | +$370K |
|
730
CALL
Aurinia Pharmaceuticals
AUPH
$1.95B
| $450K | 0.02% |
1,064
+585
| +122% | +$2.7K |
|
731
CALL
Las Vegas Sands
LVS
$30.2B
| $450K | 0.02% |
1,285
+157
| +14% | +$8.54K |
|
732
CubeSmart
CUBE
$9.38B
| $449K | 0.02% |
17,325
+2,775
| +19% | +$72.9K |
|
733
PUT
3D Systems Corp
DDD
$436M
| $449K | 0.02% |
1,425
+1,072
| +304% | +$16.8K |
|
734
CALL
Philip Morris
PM
$302B
| $449K | 0.02% |
1,055
-1,156
| -52% | -$119K |
|
|
AKAO
735
CALL
DELISTED
Achaogen Inc
AKAO
| $449K | 0.02% |
866
+629
| +265% | +$12.9K |
|
736
CALL
Cognizant
CTSH
$20.1B
| $448K | 0.02% |
1,425
+266
| +23% | +$15.3K |
|
|
FRGI
737
DELISTED
Fiesta Restaurant Group, Inc.
FRGI
| $448K | 0.02% |
+18,534
| New | +$469K |
|
738
Royal Caribbean
RCL
$75.5B
| $445K | 0.02% |
+4,543
| New | +$425K |
|
|
LVNTA
739
CALL
DELISTED
Liberty Interactive Corporation Series A Liberty Ventures
LVNTA
| $445K | 0.02% |
+1,185
| New | +$50.8K |
|
740
Federal Agricultural Mortgage
AGM
$2.22B
| $444K | 0.02% |
7,720
+5,835
| +310% | +$337K |
|
741
American Tower
AMT
$77.6B
| $444K | 0.02% |
3,661
-641
| -15% | -$70.5K |
|
742
CALL
PepsiCo
PEP
$183B
| $443K | 0.02% |
2,011
-152
| -7% | -$16.3K |
|
743
New Oriental
EDU
$7.81B
| $442K | 0.02% |
7,322
+4,342
| +146% | +$220K |
|
744
PUT
Capri Holdings
CPRI
$1.8B
| $441K | 0.02% |
1,524
+556
| +57% | +$21.9K |
|
745
Newell Brands
NWL
$2.19B
| $441K | 0.02% |
+9,359
| New | +$444K |
|
746
PUT
Herbalife
HLF
$1.24B
| $440K | 0.02% |
4,988
+1,514
| +44% | +$42.1K |
|
|
CLVS
747
CALL
DELISTED
Clovis Oncology, Inc.
CLVS
| $440K | 0.02% |
264
-387
| -59% | -$23.5K |
|
748
PTC
PTC
$13.2B
| $439K | 0.02% |
+8,363
| New | +$442K |
|
749
CALL
Deere & Co
DE
$164B
| $437K | 0.02% |
1,113
-24
| -2% | -$2.6K |
|
|
ISLE
750
DELISTED
Isle of Capri Casinos Inc
ISLE
| $436K | 0.02% |
16,566
+15,172
| +1,088% | +$376K |
|
Similar funds
Simplex Trading's Q1 2017 Portfolio in Review
As of Q1 2017, Simplex Trading held 7,485 positions worth $2.31B, up 38% from $1.67B the previous quarter. Its ten largest holdings account for 18% of the portfolio.
Simplex Trading deployed $551M of net new capital in Q1 2017, opening 1,662 new positions and adding to 2,374 existing holdings. Its largest new stake was iShares 20+ Year Treasury Bond ETF: 179,511 shares worth $21.7M.
By sector, the portfolio is most concentrated in Technology at 9.7% of assets, up from 7.2% a quarter earlier, followed by Communication Services and Consumer Discretionary.
On the sell side, the largest reduction was Citigroup, an estimated $21.4M trimmed.
- Simplex Trading's largest Q1 2017 buy was iShares 20+ Year Treasury Bond ETF: 179,511 shares worth $21.7M.
- Simplex Trading added most to Goldman Sachs in Q1 2017, an estimated $40.4M increase.
- Simplex Trading's biggest Q1 2017 reduction was Citigroup, cutting an estimated $21.4M.
- Simplex Trading fully exited Invesco QQQ Trust in Q1 2017, selling an estimated $14.4M.
- Simplex Trading's ten largest holdings make up 18% of its $2.31B portfolio in Q1 2017.
- Simplex Trading opened 1,662 new positions and closed 1,369 in Q1 2017.
- Simplex Trading's portfolio value rose 38% quarter-over-quarter to $2.31B.
Based on Simplex Trading's 13F filing for Q1 2017, filed 21 Apr 2017.