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 | |
|---|---|---|---|---|---|---|
851
PUT
Brookdale Senior Living
BKD
$3.48B
| $210K | 0.02% |
272
-161
| -37% | -$2.46K |
|
|
WPZ
852
DELISTED
Williams Partners L.P.
WPZ
| $210K | 0.02% |
10,301
-10,941
| -52% | -$215K |
|
853
PUT
AB InBev
BUD
$155B
| $209K | 0.02% |
1,051
+33
| +3% | +$3.92K |
|
854
Telephone and Data Systems
TDS
$3.82B
| $209K | 0.02% |
6,961
+6,929
| +21,653% | +$175K |
|
855
PUT
United Airlines
UAL
$37.2B
| $209K | 0.02% |
2,333
+1,798
| +336% | +$95.5K |
|
856
CNX Resources
CNX
$4.88B
| $208K | 0.02% |
22,162
-2,480
| -10% | -$18K |
|
857
CALL
PPG Industries
PPG
$25.3B
| $208K | 0.02% |
104
+89
| +593% | +$8.75K |
|
858
iShares Mortgage Real Estate ETF
REM
$540M
| $207K | 0.02% |
+5,355
| New | +$197K |
|
859
Yelp
YELP
$1.35B
| $207K | 0.02% |
10,421
-37,659
| -78% | -$771K |
|
860
Cigna
CI
$75.8B
| $206K | 0.02% |
+1,507
| New | +$207K |
|
861
PUT
Opko Health
OPK
$891M
| $206K | 0.02% |
778
+149
| +24% | +$1.36K |
|
862
PUT
YPF
YPF
$20.5B
| $206K | 0.02% |
2,939
+2,815
| +2,270% | +$46.7K |
|
|
HCR
863
PUT
DELISTED
Hi-Crush Inc. Common Stock
HCR
| $206K | 0.02% |
62
-1
| -2% | -$5 |
|
|
TFCF
864
PUT
DELISTED
Twenty-First Century Fox, Inc. Class B
TFCF
| $206K | 0.02% |
302
-1,435
| -83% | -$38.6K |
|
865
CALL
Advance Auto Parts
AAP
$3.21B
| $205K | 0.02% |
152
-108
| -42% | -$16.2K |
|
866
National Healthcare
NHC
$3.47B
| $205K | 0.02% |
3,300
+2,878
| +682% | +$179K |
|
|
AVTA
867
PUT
DELISTED
Avantax, Inc. Common Stock
AVTA
| $205K | 0.02% |
323
+16
| +5% | +$112 |
|
868
CALL
C.H. Robinson
CHRW
$24.3B
| $204K | 0.02% |
810
+689
| +569% | +$47.3K |
|
869
CALL
Eli Lilly
LLY
$1.05T
| $204K | 0.02% |
1,990
+478
| +32% | +$36.2K |
|
870
CALL
Intuitive Surgical
ISRG
$119B
| $203K | 0.02% |
963
-324
| -25% | -$20.1K |
|
871
CALL
Hartford Financial Services
HIG
$39B
| $202K | 0.02% |
1,037
+884
| +578% | +$37.2K |
|
872
ProShares UltraShort Bloomberg Crude Oil
SCO
$578M
| $202K | 0.02% |
39
-9
| -19% | -$58K |
|
|
SPWR
873
DELISTED
SunPower Corporation Common Stock
SPWR
| $202K | 0.02% |
+13,819
| New | +$215K |
|
|
SE
874
DELISTED
Spectra Energy Corp Wi
SE
| $202K | 0.02% |
6,622
+5,453
| +466% | +$154K |
|
875
PUT
Charter Communications
CHTR
$15.4B
| $201K | 0.02% |
658
+476
| +262% | +$85.4K |
|
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.