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 |
Broadcom
AVGO
|
+$33.7M |
| 2 |
SPDR Gold Trust
GLD
|
+$17.8M |
| 3 |
iShares MSCI Emerging Markets ETF
EEM
|
+$14.3M |
| 4 |
State Street SPDR S&P MIDCAP 400 ETF Trust
MDY
|
+$11.9M |
| 5 |
Citigroup
C
|
+$8.7M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Apple
AAPL
|
+$34.2M |
| 2 |
GMCR
KEURIG GREEN MTN INC
GMCR
|
+$17.9M |
| 3 |
Chipotle Mexican Grill
CMG
|
+$14.7M |
| 4 |
Walt Disney
DIS
|
+$13.3M |
| 5 |
Booking.com
BKNG
|
+$12.1M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 7.64% |
| 2 | Communication Services | 6.85% |
| 3 | Consumer Discretionary | 4.92% |
| 4 | Healthcare | 4.57% |
| 5 | Financials | 4.22% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
401
CALL
Accenture
ACN
$85.7B
| $557K | 0.04% |
705
+618
| +710% | +$63.5K |
|
402
CALL
Whirlpool
WHR
$2.41B
| $556K | 0.04% |
497
-9
| -2% | -$1.34K |
|
403
CALL
Devon Energy
DVN
$51.8B
| $555K | 0.04% |
2,462
+2,193
| +815% | +$53.4K |
|
404
Timken Company
TKR
$9.84B
| $553K | 0.04% |
16,533
+14,809
| +859% | +$429K |
|
405
PUT
JPMorgan Chase
JPM
$926B
| $550K | 0.04% |
3,493
+15
| +0.4% | +$876 |
|
|
JCP
406
CALL
DELISTED
J.C. Penney Company, Inc.
JCP
| $548K | 0.04% |
2,141
+1,501
| +235% | +$13.1K |
|
407
CALL
RTX Corp
RTX
$262B
| $546K | 0.04% |
1,508
+555
| +58% | +$32.2K |
|
408
CALL
Starbucks
SBUX
$119B
| $544K | 0.04% |
2,337
+1,108
| +90% | +$64.5K |
|
409
PUT
ExxonMobil
XOM
$640B
| $542K | 0.04% |
6,663
+2,444
| +58% | +$196K |
|
|
CRR
410
DELISTED
Carbo Ceramics Inc.
CRR
| $542K | 0.04% |
38,186
+28,139
| +280% | +$486K |
|
411
CALL
lululemon athletica
LULU
$12.9B
| $535K | 0.04% |
1,236
+392
| +46% | +$23.5K |
|
412
Opko Health
OPK
$891M
| $535K | 0.04% |
51,496
+51,296
| +25,648% | +$469K |
|
|
EZCH
413
DELISTED
EZCHIP SEMICONDUCTOR LIMITED ORD SHS (IL)
EZCH
| $534K | 0.04% |
20,955
-39,727
| -65% | -$1M |
|
414
AbbVie
ABBV
$448B
| $533K | 0.04% |
+9,340
| New | +$521K |
|
|
MBLY
415
PUT
DELISTED
Mobileye N.V.
MBLY
| $533K | 0.04% |
844
-109
| -11% | -$3.47K |
|
|
N
416
DELISTED
Netsuite Inc
N
| $533K | 0.04% |
7,787
+7,376
| +1,795% | +$483K |
|
417
ProShares Ultra Dow30
DDM
$537M
| $531K | 0.04% |
+48,180
| New | +$473K |
|
418
Occidental Petroleum
OXY
$57.2B
| $531K | 0.04% |
+7,764
| New | +$520K |
|
419
CALL
Agnico Eagle Mines
AEM
$73.5B
| $530K | 0.04% |
1,297
+743
| +134% | +$24.4K |
|
420
Rockwell Automation
ROK
$51B
| $530K | 0.04% |
4,661
+2,240
| +93% | +$227K |
|
421
CALL
American Express
AXP
$238B
| $527K | 0.04% |
1,859
+867
| +87% | +$50.4K |
|
|
CELG
422
CALL
DELISTED
Celgene Corp
CELG
| $527K | 0.04% |
3,882
+1,117
| +40% | +$115K |
|
|
GAS
423
DELISTED
AGL Resources Inc
GAS
| $525K | 0.04% |
+8,062
| New | +$519K |
|
424
PUT
EOG Resources
EOG
$76.7B
| $523K | 0.04% |
1,295
+735
| +131% | +$50.8K |
|
|
AL
425
DELISTED
Air Lease Corp
AL
| $521K | 0.04% |
+16,245
| New | +$461K |
|
Similar funds
Simplex Trading's Q1 2016 Portfolio in Review
As of Q1 2016, Simplex Trading held 7,084 positions worth $1.25B, down 1.8% from $1.28B the previous quarter. Its ten largest holdings account for 17% of the portfolio.
Simplex Trading's Q1 2016 filing shows 1,678 new, 2,214 increased, 1,528 reduced and 1,505 closed positions. Its largest new stake was Broadcom: 2,493,400 shares worth $38.5M. The largest sale was Apple, an estimated $34.2M.
By sector, the portfolio is most concentrated in Technology at 7.6% of assets, up from 7% a quarter earlier, followed by Communication Services and Consumer Discretionary.
- Simplex Trading's largest Q1 2016 buy was Broadcom: 2,493,400 shares worth $38.5M.
- Simplex Trading added most to Citigroup in Q1 2016, an estimated $8.7M increase.
- Simplex Trading's biggest Q1 2016 reduction was Booking.com, cutting an estimated $12.1M.
- Simplex Trading fully exited Apple in Q1 2016, selling an estimated $34.2M.
- Simplex Trading's ten largest holdings make up 17% of its $1.25B portfolio in Q1 2016.
- Simplex Trading opened 1,678 new positions and closed 1,505 in Q1 2016.
- Simplex Trading's portfolio value fell 1.8% quarter-over-quarter to $1.25B.
Based on Simplex Trading's 13F filing for Q1 2016, filed 14 Apr 2016.