股票新手: 投資常見嘅skill sets
May 27, 2021 8:00:00 AM 0 min read
上次小編同大家分析左fundamental analysis入面嘅relative valuation。相信好多同學仔都覺得好實用🤓。今次就等小編同大家分享吓資本資產定價模型(capital asset pricing model, 簡稱CAPM) 啦。今次分享會係呢個series嘅最後一個,同時亦都係比較難嘅一個🤯,咁多位同學仔記得打足12分精神啦。🤩🤩🤩CAPM係基於風險資產期望收益均衡基礎上嘅一個預測模型。佢通過一條方程式📝,將資產嘅預期收益同預期風險之間嘅關係用一個簡單嘅線性關係(linear)黎表達📐📏,認為一個資產嘅預期收益率(expected return)同資產風險嘅β值之間存在正相關關係(positive correlation)📈。簡單來講,越高風險相對嘅回報亦都越多。CAPM係基於一個central idea,就係投資者需要喺time value of money同埋risk之間做取捨🤔💰。亦都係咁,CAPM有唔少嘅assumptions:1. 投資者希望財富越多愈好。💰💰💰2. 投資收益率嘅概率分佈(probability distribution)為正態(normal)。📊3. 投資風險以投資收益率嘅方差(variance)或標準差作標識,即係上面提到嘅β值。4. 期望收益率同風險為影響投資決策嘅兩大主要因素。5. 投資者都遵守主宰原則(Dominance rule),即係同一風險水平下,選擇收益率較高啲證券;同一收益率水平下,選擇風險較低嘅證券。🧠講左咁多,原來統計學(statistics)對於投資咁重要,modeling 更加係一個投資好常見嘅skill set。今日小編就講住咁多先,俾啲時間大家消化下。如果想繼續學嘢就記得留意住我哋Instagram啦。🥳🥳🥳
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