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 |
LNKD
LinkedIn Corporation
LNKD
|
+$21.4M |
| 2 |
SPDR Gold Trust
GLD
|
+$17.3M |
| 3 |
QIHU
QIHOO 360 TECHNOLOGY CO LTD ADS RPSTG 3 CL A SHS
QIHU
|
+$15M |
| 4 |
Biogen
BIIB
|
+$14.9M |
| 5 |
Visa
V
|
+$14.1M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Broadcom
AVGO
|
+$36.7M |
| 2 |
Alphabet (Google) Class C
GOOG
|
+$20.1M |
| 3 |
iShares MSCI Emerging Markets ETF
EEM
|
+$15.8M |
| 4 |
Citigroup
C
|
+$14.7M |
| 5 |
State Street SPDR S&P MIDCAP 400 ETF Trust
MDY
|
+$13.1M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Communication Services | 6.61% |
| 2 | Healthcare | 6.55% |
| 3 | Technology | 6.45% |
| 4 | Consumer Discretionary | 4.54% |
| 5 | Financials | 4.51% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
676
CALL
Crown Castle
CCI
$33.8B
| $368K | 0.02% |
434
+232
| +115% | +$21.1K |
|
677
CALL
Cleveland-Cliffs
CLF
$5.39B
| $367K | 0.02% |
3,104
+533
| +21% | +$2.19K |
|
678
PUT
MetLife
MET
$60B
| $366K | 0.02% |
1,589
+799
| +101% | +$31.2K |
|
679
ProShares Ultra Silver
AGQ
$1.22B
| $364K | 0.02% |
7,651
+1,566
| +26% | +$60.6K |
|
680
iShares MSCI South Korea ETF
EWY
$22.7B
| $364K | 0.02% |
+7,009
| New | +$360K |
|
681
Kilroy Realty
KRC
$4.49B
| $364K | 0.02% |
5,501
+5,318
| +2,906% | +$336K |
|
682
PUT
BHP
BHP
$215B
| $361K | 0.02% |
1,771
+1,196
| +208% | +$29.8K |
|
683
CALL
Devon Energy
DVN
$51.8B
| $361K | 0.02% |
1,180
-1,282
| -52% | -$43.5K |
|
684
Under Armour
UAA
$3.1B
| $361K | 0.02% |
9,000
-19,201
| -68% | -$763K |
|
685
VanEck Semiconductor ETF
SMH
$70.7B
| $359K | 0.02% |
+12,610
| New | +$346K |
|
686
Vanguard Value ETF
VTV
$187B
| $358K | 0.02% |
4,218
+1,193
| +39% | +$99.7K |
|
|
KATE
687
DELISTED
Kate Spade & Company
KATE
| $357K | 0.02% |
+17,350
| New | +$396K |
|
688
ProShares Ultra Gold
UGL
$676M
| $354K | 0.02% |
31,500
+22,640
| +256% | +$233K |
|
|
BHR
689
Braemar Hotels & Resorts
BHR
$148M
| $353K | 0.02% |
+25,254
| New | +$302K |
|
|
DATA
690
PUT
DELISTED
Tableau Software, Inc.
DATA
| $353K | 0.02% |
192
-105
| -35% | -$5.26K |
|
691
PUT
Whirlpool
WHR
$2.41B
| $352K | 0.02% |
512
-59
| -10% | -$10.4K |
|
692
ProShares UltraShort NASDAQ Biotechnology
BIS
$2.31M
| $351K | 0.02% |
1,056
-2,349
| -69% | -$742K |
|
693
CALL
Intuitive Surgical
ISRG
$122B
| $351K | 0.02% |
1,215
+252
| +26% | +$17.7K |
|
694
Altisource Portfolio Solutions
ASPS
$74M
| $349K | 0.02% |
+1,569
| New | +$347K |
|
|
RAI
695
CALL
DELISTED
Reynolds American Inc
RAI
| $349K | 0.02% |
699
-842
| -55% | -$42.3K |
|
696
PUT
ATI
ATI
$26.7B
| $348K | 0.02% |
322
-14
| -4% | -$200 |
|
697
PUT
McKesson
MCK
$95.3B
| $348K | 0.02% |
275
+138
| +101% | +$24.2K |
|
698
Travel + Leisure Co
TNL
$4.63B
| $347K | 0.02% |
+10,811
| New | +$346K |
|
|
JWN
699
PUT
DELISTED
Nordstrom
JWN
| $346K | 0.02% |
575
+318
| +124% | +$14.1K |
|
|
WPX
700
DELISTED
WPX Energy, Inc.
WPX
| $346K | 0.02% |
37,193
-21,729
| -37% | -$196K |
|
Similar funds
Simplex Trading's Q2 2016 Portfolio in Review
As of Q2 2016, Simplex Trading held 7,153 positions worth $1.5B, up 19% from $1.25B the previous quarter. Its ten largest holdings account for 19% of the portfolio.
Simplex Trading deployed $178M of net new capital in Q2 2016, opening 1,586 new positions and adding to 2,321 existing holdings. Its largest new stake was Biogen: 56,467 shares worth $13.7M.
By sector, the portfolio is most concentrated in Communication Services at 6.6% of assets, down from 6.9% a quarter earlier, followed by Healthcare and Technology.
On the sell side, the largest reduction was Broadcom, an estimated $36.7M trimmed.
- Simplex Trading's largest Q2 2016 buy was Biogen: 56,467 shares worth $13.7M.
- Simplex Trading added most to LinkedIn Corporation in Q2 2016, an estimated $21.4M increase.
- Simplex Trading's biggest Q2 2016 reduction was Broadcom, cutting an estimated $36.7M.
- Simplex Trading fully exited Alphabet (Google) Class C in Q2 2016, selling an estimated $20.1M.
- Simplex Trading's ten largest holdings make up 19% of its $1.5B portfolio in Q2 2016.
- Simplex Trading opened 1,586 new positions and closed 1,363 in Q2 2016.
- Simplex Trading's portfolio value rose 19% quarter-over-quarter to $1.5B.
Based on Simplex Trading's 13F filing for Q2 2016, filed 18 Jul 2016.