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组合投资的风险与收益及其MATLAB的实现
ABSTRACT
In today's market has become increasingly fierce competition, many investors in explore a new way to reduce the management risk, seek a more stable income.With he constant improvement of stock trading development in China, the concept of the nvestors are engaged in stock investment show mature gradually, and the combination of stock investment in the stock market investment as a kind of effective method.Many countries in Europe and in stock investment market is now the important one seat and have a very broad application.Although at present the development of Chinese stock market is not very perfect, but those classic foreign stock portfolio theory and investment strategy can give a lot of reference, so that a series of problems we need to come up with a more practical method to solve, can provide a more powerful investors in the stock investment of our country's help.
2015届毕业论文
股票组合投资的风险与收益及其MATLAB的实现
摘要
随着经济的发展,越来越多的投资者开始将闲置资金投入股票市场,如何科学地在可接受的风险水平下获取收益成为投资者迫切需要解决的问题,由于中小投资者资金投入有限,将有限的投资额有效地分配到不同的股票以降低风险显得尤为重要。俗语中有句话讲到,鸡蛋不能放在一个篮子里,这句话的内涵就是投资组合。对于投资者而言,股票投资作为一种增加收益的方法也存在着一定的风险,因此如何合理的利用股票投资组合方案来降低投资中面临的风险是十分有必要的。
Key words Enterprise stock portfolio;Portfolio risk and return
1
1.1
股票是一种由股份制有限公司签发的用以证明股东所持股份的凭证,它说明股票的持有人对股份制公司的一部分资源所有权的凭证。由于股票牵扯到经济利益,且可以在市面上流通,所以股票也可以当做一种有价股票。目前我国上市公司的股票可以在上海股票交易所和深圳股票交易所交易。
本文是探索给予一定量资本情况下,要使收入达到一定比例,如何获得最优组合的投资方法。本文以马科维茨投资组合理论为主结合动态规划内容,当投资者要求满足投资组合的风险降到最低,同时就需要用关联关系的达到最小,因此可以采用二次规划和动态规划来解决问题,并确定使用MATLAB的编程求解。
关键词:股票投资组合;投资组合的风险收益
1.2
权责性:股票作为产权或股权的凭证,是股份的股票表现,代表股东对发行股票的公司所拥有的一定权责。股东通过参加股东大会,行使投票权来参与公司经营管理,股东可凭其所持股票向公司领取股息、参与分红,并在特定条件下对公司资产具有索偿权,股东以其所持股份为限对公司负责。股东的权益与其所持股票占公司股本的比例成正比。是这种波动使投资者有可能实现短期获利的希望。
投资风险性:股票一经买进就不能退还本金,股价的波动就意味着持有者的盈亏变化。上市公司的经营状况直接影响投资者获取收益的多少。一旦公司破产清算,首先受到补偿的不是投资者而是债权人。
流动性:股票虽不可退回本金,但流通股却可以随意转让出售或作为抵押品。
有限清偿责任:投资者承担的责任仅仅限于购买股票的资金,即便是公司破产,投资者也不负清偿债务的责任,不会因此而倾家荡产,最大损失也就是股票形同废纸。
1.3
股票根据其性质大致分为以下几种:
1.普通股。普通股是指在公司的经营管理和盈利及财产的分配上享有普通权利的股份。
Study given to the model and capital, to meet a certain percentage of their income, make the risk as far as possible the way to the smallest of the optimal e Markowitz put forward the basic framework of portfolio, and reasonable improvement on the original content.According to the concept of Markowitz portfolio, to minimize the portfolio risk, in addition to diversification in different projects, still should choose low correlation coefficient related investment projects, using quadratic programming to solve the problem, and used MATLAB programming model.