After the 2008 financial crisis, along with information technology and its application

innovation into the burst period, Shared faster economic growth, and then entered into a

rapid expansion in 2014, quickly penetrate into many areas and market segments.

As the securities industry practitioners and Internet financial practitioners, I am

very concerned about sharing economic model in the development of securities

investment niche. As the Internet and mobile penetration rate rise in recent years, the

Internet financial in the rapid development of our country, investors get used for

investment decision-making information via the Internet. Internet social investment

sharing platform based on knowledge sharing and rapid development, has formed

"opinion leaders", "combined with", "automated financial innovation model". The

emergence of these new patterns, provide investors with investment of knowledge sharing,

the investors behavior changes, many small and medium-sized investors into social

sharing platform for the combination of investment talent information and follow orders,

and centered on investment talent view form fan interaction.

This article around the "Shared economic environment on the impact of portfolio

share on investor behavior research," the theme, the relevant literature and resources, and

to detect Shared economic environment provided by the social share portfolio, whether to

change the traditional information decision and disadvantages of small and medium-sized

investors, whether really improved the small and medium-sized investors return on

investment, its conclusion try to explain the traditional period research literature on active

investment and passive investment, the relevant conclusions of small and medium-sized

investors and institutional investors, sharing in the Internet the rapid development of

economic period is changed.