Chapter 3  用移動平均線來判定買賣時點

移動平均線是投資者的平均成本,如果價格在平均線之上,表示大家都賺錢,當短期的移動平均線超過長期的移動平均線,表示短期的投資者願意高價搶進,價格將會有更積極的表現。

如果價格在平均成本之下,表示大家都賠錢。當短期的移動平均線跌破長期的移動平均線,表示短期的投資者不計代價賣出持有部位,匯價將會出現弱勢表現。

投資者可以運用平均成本的觀念,藉由長短期移動平均線的關係,來找到買賣時點。至於長、短期的線,是比較得來的。比如:如果5日線和10日線比較,5日線為短線,10日線為長線;如果10日線和20日線比較,則10日線為短線,20日線為長線。

買進時機

當短期的移動平均線突破長期的移動平均線,為買進訊號。

當短期的移動平均線突破長期的移動平均線,且兩條線上揚,為積極買進訊號,又稱為“黃金交叉”。

如圖5.3.1,10日移動平均線反轉向上,突破20日移動平均線,且兩條線上揚,呈現“黃金交叉”,為買進訊號。

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