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投资风格漂移的量化研究是规范基金产品设计与控制基金经理投资行为的关键环节。根据分形维和经济弹性定义,在分析业绩比较基准风格指数对基金业绩影响的基础上,给出了基金投资风格漂移的价格弹性分形维定义,并推导出该分形维数的计算公式:基金对数收益序列与比较基准风格指数对数收益序列的比值。以我国2003年成立的18只开放式基金为研究样本,测算出基金投资风格漂移的价格弹性分形维,实证结果表明:基金投资风格均发生了明显的漂移现象;根据价格弹性分形维与投资风格一致性基准线得到了基金投资风格漂移的阀值,为控制较严重的投资风格漂移现象提供了衡量标准。本文研究方法与结论对完善基金产品创新发行理念、提高基金市场的效率提供了决策依据,并为进一步量化我国开放式基金投资风格漂移风险提供了新的研究思路。 相似文献
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本文采用基于强式夏普模型的SDS指标方法研究我国开放式偏股型基金中的基金经理异质性特征与基金投资风格漂移的关系.研究发现基金经理异质性特征中的社会类别异质性、信息异质性与价值异质性三个类别,包括基金经理更换、基金经理在本基金的从业时间基金经理的学历水平等代理变量对基金投资风格漂移程度存在显著的影响,股票市场上牛熊市性质和波动性对基金投资风格漂移影响显著. 相似文献
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我国股票型开放式基金的投资风格分析 总被引:2,自引:0,他引:2
本文首先应用Sharpe投资风格分析法对我国股票型开放式基金的实际投资风格进行了分析,并运用平移窗口的方法对基金风格的可持续性进行研究。研究结果表明,在2004年3月到2008年3月期间,大多数基金的实际投资风格与其契约风格不同,且转变风格的基金大多数为由标榜为价值型转变为成长型。从整个考察期看,基金的投资风格并不稳定,表现出随市场状况变化而漂移的特征,16支样本基金中,有11支基金在本文考察期间发生了风格转换,平均每支变换风格0.93。这期间基金通过资产配置获得的平均收益(风格收益)约占到总收益的86%,依靠基金管理人的选股能力获得的收益约占到整个收益的14%。 相似文献
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西方金融投资学的主流观点是以有效市场假说为基础,以均衡、线性、标准计量模型优化求解为主要特征的。它越来越多地被实践证明不符合现实。分形市场假说很好地解释了有效市场假说无法解释的各种市场现象。分形市场假说在市场波动解释上更有广泛性,而有效市场只是在某个特定时段才可能出现。分形市场假说对有效市场假说形成了有力挑战,为资本市场研究和投资策略设计开创了一种新视角和新方法。 相似文献
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西方金融投资学的主流观点是以有效市场假说为基础,以均衡、线性、标准计量模型优化求解为主要特征的.它越来越多地被实践证明不符合现实.分形市场假说很好地解释了有效市场假说无法解释的各种市场现象.分形市场假说在市场波动解释上更有广泛性,而有效市场只是在某个特定时段才可能出现.分形市场假说对有效市场假说形成了有力挑战,为资本市场研究和投资策略设计开创了一种新视角和新方法. 相似文献
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证券投资基金绩效评价方法及实证分析 总被引:6,自引:0,他引:6
为考察中国证券投资基金是否取得了超越基准市场市场指数的表现、中国基金是否为投资者创造了价值 ,主要采用 3大经典的风险调整绩效衡量指标对 10只样本基金及基准市场在 2 0 0 2年的表现进行相关计算和排序 ,同时还对基金的择券和择时能力及其投资风格进行了讨论和分析。结论表明有些证券投资基金在 2 0 0 2年投资业绩不如市场 ,投资风格与所宣称的也有较大出入 ,基金投资管理能力及其风格均有待提高和稳定。 相似文献
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《International Review of Finance》2018,18(1):91-112
We examine the dynamic contagion process of the equity market on 10 hedge fund styles. We investigate the contagion mechanism for each style using single equation error correction and latent factor models. We find that the contagion effects of the equity market on each style index depend specifically on the fund style strategy. We demonstrate that certain fund styles are more prone to contagion from the equity market than others. Our results help illuminate the relative effectiveness of a particular strategy under certain market conditions and provide insights into the long‐standing controversy around the efficient market hypothesis. 相似文献
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近期基金市场迎未了第三次扩容,基金规模也迅速扩大。这次扩容管理层目的在于大力扶持机构投资者,增强证券市场稳定性,然而从目前二级市场表现看,这一政策值得商榷,在量变中寻求质变,加强外部环境的改善以及基金管理公司内部的整合是主要关键。 相似文献
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Angeles Fernandez-Izquierdo Juan Carlos Matallin-Saez 《Journal of Business Ethics》2008,81(2):247-260
There is currently much debate in the economic literature about whether ethical investment involves a financial sacrifice
or premium. One of the most common methods of testing this compares the financial performance of ethical investment funds
with that of other funds not considered “socially responsible” or ethical. The majority of these research studies evaluate
the performance of the ethical funds according to classic measures, whereby different financial markets, in different countries
and for different periods of time serve as reference for evaluation. The ultimate conclusion of all of these studies is that
there are no significant differences between the performance results of one type of funds and the other. In Spain, ethical
investment funds are still an incipient sector of investment. To date, the Spanish market has not been included in any type
of analysis of these characteristics. Therefore the main objective of this article is to compare the financial performance
of ethical investment funds to that of other funds in the Spanish retail market. We propose the aggregate type of analysis
as the Spanish ethical investment funds have experienced a weaker development in comparison to those of other developed countries.
In the first step we suggest the financial performance to be compared by style analysis since the asset distribution of the
Spanish Social Return Investment (SRI) funds differs from the European trend. In particular, we use the multifactor regression
model with style benchmarks. We found that their financial performance is in all cases superior or similar to that achieved
by the rest of the funds. In the second step, to achieve a more robust and homogeneous comparison, we used the bootstrap method,
comparing ethical and non-ethical fund subsamples by homogeneous groups. No significant differences between these two types
of funds have been found. Thus, if we assume the positive o neutral effect of ethical investment on investor utility in the
retail Spanish market the financial and social performance (FSP) of ethical funds will be, in aggregate, superior to the FSP
achieved by conventional funds. In conclusion, the financial performance of ethical mutual funds in Spain is no sacrifice. 相似文献
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Drawing together the areas of behavioral finance and positive psychology, the present research sought to investigate whether the psychological capital of investment fund managers is associated with fund performance in a context of financial instability. The theoretical propositions were presented and evaluated empirically through primary data on investment fund manager profiles and secondary data on the cumulative stock fund returns. The results indicate that funds managed by managers with greater resilience and optimism obtained a higher return than the mean profitability in a period of market instability. 相似文献
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目前我国开放式基金总体显示了专家理财的优势。我国证券市场还存在着有效性不足、市场具有投机性、证券投资产品单一等缺陷,投资者很难构造有效的投资组合,无法规避系统风险。规范证券市场运作,提高证券市场效率是发展我国开放式证券投资基金的关键。 相似文献