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# 技术指标的简单运用 — 人气型指标篇 - PowerPoint PPT Presentation

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2009.2.26

PSY（心理线指标）
• PSY是从投资者的买卖心理趋向方面，将一定时期内的投资者看多或看空的心理事实转化为数值，来研判股价未来走势的技术指标。
• 计算公式：PSY=A/N X 100
• N是天数，一般定为12日，A是N天中股价上涨的天数。PSY的取值范围是0-100，50以上是多头市场，50以下是空头市场。
OBV（能量潮指标）
• OBV的理论基础是市场价格的有效变动必须有成交量的配合，量是价的先行指标。利用OBV 可以验证当前股价走势的可靠性，并可以得到趋势可能反转的信号。
• 计算公式：今日OBV=昨日OBV+sgn X 今天的成交量
• Sgn=1 今日收盘价>昨日收盘价
• Sgn=-1 今日收盘价<昨日收盘价