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第96章 短线投资策略剖析(2 / 2)

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通过计算,当前进价为区间:6.645~6.791,在此区间买入最优。

1.4量化交易法则三·持股周期

持股周期是指持有个股周期时间,持股周期决定了盈利空间大小,如果持有个股周期时间把握不好,可能本来一只盈利的个股会造成亏损,甚至被套的可能。如何判断持股周期呢?我们可以通过用当前股价对比第五个交易日前的股价,如果当前股价大于后推第五个交易日的收盘价,则继续持有该股,反之应立即抛货。公式可以表示如下:

T=T(D)-T(D-5) 若T>0,则继续持股;若T<=0,则放弃持股,应立即出货

注:T表示股价差值,T(D)表示当前股价,T(D-5)表示以当前股价为中心向后推5个交易日的收盘价。

1.5量化交易法则四·出货价计算

出货价是指所选个股以什么价格卖出。出货价的高低直接决定了最终总收益的高低,什么价格出货变得尤为重要。出货的价格可以通过以下公式计算。

B=(F(Max)-F(Min))*2+F(Min)

F(jqcj)=[B*0.96,B]

注:B表示个股近期出货高位价,B*0.96表示绝对安全出货价,F(jqcj)表示个股近期出货价区间,F(Max)表示个股当前最高的股价,F(Min)表示个股当前最低的股价。

举例分析:2021-02-23 15:00 太阳能股票代码000591收盘价,当前最高股价6.89,当前最低价格6.40,对应公式即可计算出近期最优出货价区间。

B=(6.89-6.40)*2+6.40=7.38

F(jqcj)=[7.08,7.38]

通过计算,该股近期最优出货价区间为7.08~7.38,在此区间出货最优,绝对安全出货价为7.08。

经过长期试验研究发现,主力资金的量化对股价的变化有直接的影响,且可以通过定量分析,计算出股价的近期价格波动区间。研究发现:当近20日,10日,5日,3日主力资金流向变化呈规则的递增趋势增长变化时,反应到个股股价上表现为持续增长的趋势。量化交易法则实质上是研究短线价值股的成长周期。本论文量化交易法则条件归纳为以下3点:1.近期主力资金流入要呈规则的递增趋势增长;2.近五日线要呈递增趋势增长;3.公司逐年年报净利润和营业收入同比增长率均为正值。目前量化交易法则适用于全球股市股价投资分析。”

然而,林宇也清楚短线投资的风险极高,市场情绪、突发消息等因素都可能瞬间改变股价走势。因此,他严格设定止损止盈位,一旦股价走势与预期相反,触及止损位,他会毫不犹豫地割肉离场,以控制损失;而当达到止盈目标时,也不会贪婪,及时锁定利润。他常告诫身边想要尝试短线投资的村民:“短线投资就像走钢丝,每一步都要小心翼翼,不能有丝毫的大意。”

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