玩股撇步(動畫小學堂)  

  • 收帳和銷貨天數如果一直上升, 就要當心了!
  • 存貨在不同時期有不同的意義, 像是滯銷, 或是因為報價回升而屯貨, 或是積極備料, 這都需要去看存貨細項和判斷當時的情況來分辨
  • 當存貨增加時, 還需要注意增加的是不是商品或製成品. 如果是在製品或原物料, 反而有可能是供給不順沒法變製成品又或者是需求旺盛(短期營收趨勢向上)
  • 處在景氣下行的公司當存貨細項-原料和在製品的回升可能代表訂單開始回溫了
  • 當記憶體模組廠, 像是威剛、十銓存貨增加時, 有可能是在增加低價庫存, 代表著景氣循環來到相對低點, 也許就是建立部位的好時機
  • 當存貨提列減損損失,虧損認列在該年度,但是存貨價格回升後,之後年度也會直接回沖增加EPS,這種情況很容易在記憶體模組廠見到
  • 存貨一直增加,但是存貨銷售比沒什麼改變,可以推測是公司因為銷售良好而準備的存貨
  • 當淨營業週期(日)接近於0, 代表公司好像在做無本生意
平均收帳天數和平均銷貨天數-近20季
存貨銷售比
近3年股價
應收帳款周轉率 QoQ YoY存貨周轉率 QoQ YoY平均收帳天數 QoQ YoY平圴銷貨天數 QoQ YoY應付帳款付現天數 QoQ YoY淨營業週期(日) QoQ YoY
21Q4 (20)1.1566.678.490.7949.06-3.6678.90-39.94-7.75114.59-33.813.43112.24-33.627.1681.25-40.01-11.28
21Q3 (19)0.69-8.00.00.53-22.060.0131.378.9-0.41173.1329.831.06169.0828.214.08135.4310.94-12.64
21Q2 (18)0.7519.05-7.410.6811.48-11.69120.63-16.267.89133.35-10.1112.17131.89-10.3337.99122.08-16.0-9.64
21Q1 (17)0.63-40.57-3.080.61-25.615.17144.0668.432.69148.3533.9-5.32147.0840.4235.45145.3358.69-22.85
20Q4 (16)1.0653.622.910.8254.727.8985.53-35.16-3.65110.79-35.33-7.82104.74-29.3338.891.58-40.92-31.4
20Q3 (15)0.69-14.8111.290.53-31.1743.24131.9117.98-9.91171.3144.1-29.43148.2155.06-9.58155.0214.74-31.18
20Q2 (14)0.8124.62-1.220.7732.7637.5111.81-20.30.56118.88-24.13-26.7495.58-11.98-19.71135.11-28.28-12.51
20Q1 (13)0.65-36.8925.00.58-23.6845.0140.2958.04-20.59156.6830.36-30.81108.5943.9-38.44188.3841.11-16.91
19Q4 (12)1.0366.13-11.970.76105.41-8.4388.77-39.3714.28120.19-50.499.5475.46-53.97-6.84133.50-40.7325.47
19Q3 (11)0.62-24.39-4.620.37-33.93-9.76146.4231.685.11242.7449.589.52163.9237.7-2.68225.2445.8517.0
19Q2 (10)0.8257.693.80.5640.0-5.08111.19-37.06-3.06162.28-28.344.35119.04-32.52-6.43154.43-31.897.99
19Q1 (9)0.52-55.56-11.860.40-51.81-25.93176.67127.4314.85226.45106.3933.35176.40117.7833.39226.72113.0818.44
18Q4 (8)1.1780.014.710.83102.44-1.1977.68-44.24-13.19109.72-50.491.5581.00-51.911.02106.40-44.73-9.34
18Q3 (7)0.65-17.724.840.41-30.51-16.33139.3021.45-5.1221.6342.5118.59168.4332.3915.89192.5134.622.22
18Q2 (6)0.7933.927.420.599.26-6.35114.70-25.44-21.6155.52-8.427.23127.22-3.812.02143.00-25.3-19.56
18Q1 (5)0.59-42.1622.920.54-35.71-5.26153.8371.92-18.14169.8257.176.1132.2464.9315.76191.4263.1-18.1
17Q4 (4)1.0264.520.00.8471.430.089.48-39.040.0108.05-42.180.080.18-44.830.0117.36-37.680.0
17Q3 (3)0.620.00.00.49-22.220.0146.790.330.0186.8828.850.0145.3427.970.0188.325.930.0
17Q2 (2)0.6229.170.00.6310.530.0146.30-22.140.0145.04-9.380.0113.57-0.590.0177.77-23.940.0
17Q1 (1)0.480.00.00.570.00.0187.910.00.0160.050.00.0114.240.00.0233.720.00.0
平均收帳天數和平均銷貨天數-近10年
應收帳款周轉率 YoY存貨周轉率 YoY平均收帳天數 YoY平圴銷貨天數 YoY應付帳款付現天數 YoY淨營業週期(日) YoY
2021 (10)3.247.642.55-5.56112.76-7.11143.135.89144.5630.73111.33-23.74
2020 (9)3.017.892.7011.57121.39-7.06135.17-10.24110.582.32145.98-15.68
2019 (8)2.79-4.782.42-5.84130.614.87150.595.95108.07-4.07173.1312.39
2018 (7)2.9311.412.57-4.81124.55-10.1142.135.06112.6513.4154.04-11.71
2017 (6)2.633.142.7019.47138.54-3.25135.28-16.0699.34-7.22174.48-11.56
2016 (5)2.55-7.942.262.26143.198.54161.16-2.32107.0710.74197.28-1.47
2015 (4)2.77-2.812.21-9.43131.923.01164.9910.1896.6935.8200.23-3.09
2014 (3)2.857.552.44-1.61128.07-7.05149.751.7771.207.02206.61-5.39
2013 (2)2.65-9.562.48-16.5137.7810.73147.1419.5966.53-1.71218.3921.48
2012 (1)2.9302.970124.430123.04067.690179.780

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