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 | |
|---|---|---|---|---|---|---|
476
Ford
F
$57.5B
| $559K | 0.04% |
+44,503
| New | +$587K |
|
|
WNR
477
DELISTED
Western Refining Inc
WNR
| $555K | 0.04% |
26,927
+15,691
| +140% | +$368K |
|
478
Hewlett Packard
HPE
$63.7B
| $554K | 0.04% |
52,214
+38,450
| +279% | +$391K |
|
479
Shopify
SHOP
$154B
| $554K | 0.04% |
180,300
+35,870
| +25% | +$105K |
|
|
INSY
480
DELISTED
Insys Therapeutics, Inc.
INSY
| $554K | 0.04% |
42,884
+40,960
| +2,129% | +$597K |
|
481
ProShares UltraShort Silver
ZSL
$88.6M
| $551K | 0.04% |
109
-48
| -31% | -$314K |
|
|
IMS
482
DELISTED
IMS HEALTH HLDGS INC COM STK (DE)
IMS
| $550K | 0.04% |
+21,715
| New | +$557K |
|
483
Ares Capital
ARCC
$13.5B
| $548K | 0.04% |
38,641
+35,054
| +977% | +$520K |
|
|
ENDP
484
PUT
DELISTED
Endo International plc
ENDP
| $547K | 0.04% |
2,644
+1,912
| +261% | +$39.6K |
|
485
CALL
AbbVie
ABBV
$448B
| $544K | 0.04% |
2,344
+648
| +38% | +$39.5K |
|
486
CALL
NetEase
NTES
$77.6B
| $544K | 0.04% |
1,565
-765
| -33% | -$23.8K |
|
487
PUT
Wells Fargo
WFC
$262B
| $544K | 0.04% |
4,685
+2,531
| +118% | +$123K |
|
|
TIF
488
PUT
DELISTED
Tiffany & Co.
TIF
| $544K | 0.04% |
891
+650
| +270% | +$43.2K |
|
|
RTN
489
CALL
DELISTED
Raytheon Company
RTN
| $543K | 0.04% |
592
-396
| -40% | -$51.6K |
|
490
Advance Auto Parts
AAP
$3.35B
| $542K | 0.04% |
+3,354
| New | +$518K |
|
491
CALL
Bausch Health
BHC
$1.7B
| $539K | 0.04% |
8,522
+799
| +10% | +$22.6K |
|
|
DVAX
492
DELISTED
Dynavax Technologies
DVAX
| $539K | 0.04% |
36,972
+7,525
| +26% | +$129K |
|
493
Bread Financial
BFH
$4.12B
| $538K | 0.04% |
+3,442
| New | +$573K |
|
494
PUT
Salesforce
CRM
$133B
| $536K | 0.04% |
3,025
+2,046
| +209% | +$161K |
|
495
PUT
Royal Caribbean
RCL
$76.7B
| $535K | 0.04% |
626
+308
| +97% | +$23.6K |
|
|
MDVN
496
DELISTED
MEDIVATION, INC.
MDVN
| $534K | 0.04% |
+8,862
| New | +$502K |
|
497
CALL
Amgen
AMGN
$198B
| $532K | 0.04% |
1,012
-801
| -44% | -$125K |
|
|
SNBR
498
DELISTED
Sleep Number
SNBR
| $532K | 0.04% |
24,896
+16,037
| +181% | +$350K |
|
499
CALL
Under Armour Class C
UA
$3.02B
| $532K | 0.04% |
+1,475
| New | +$54.4K |
|
500
PUT
Capri Holdings
CPRI
$1.86B
| $527K | 0.04% |
920
+488
| +113% | +$24K |
|
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.