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K 線怎麼看:開高低收與成交量

一根 K 線濃縮了一個交易日(或一週、一個月)的四個價格與成交量。

四個價格

一根 K 線記錄一段期間的四個價格:開盤價、最高價、最低價、收盤價。實體(粗的部分)是開盤與收盤之間的距離,影線(細的部分)延伸到最高與最低。

台股的顏色

台股慣例是紅漲綠跌:收盤高於開盤畫紅色,收盤低於開盤畫綠色。這和部分國家相反,看海外圖表時要留意。

成交量

K 線下方的柱狀圖是成交量,單位是「張」(1 張 = 1,000 股)。量大代表該期間換手頻繁;量小代表交易清淡。成交量本身不指出方向,只說明交易的熱絡程度。

日 K、週 K、月 K

週 K 的開盤是該週第一個交易日的開盤、收盤是最後一個交易日的收盤,最高與最低取整週的極值,成交量為整週加總;月 K 同理。

本文只說明名詞與讀圖方式,不構成投資建議。

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