1) Tenkan-Sen = Conversion Line = (Highest High + Lowest Low) / 2, for the past 9 periods
2) Kijun-Sen = Base Line = (Highest High + Lowest Low) / 2, for the past 26 periods
3) Chikou Span = Lagging Span = Today's closing price plotted 26 periods behind
4) Senkou Span A = Leading Span A = (Tenkan-Sen + Kijun-Sen) / 2, plotted 26 periods ahead
5) Senkou Span B = Leading Span B = (Highest High + Lowest Low) / 2, for the past 52 periods, plotted 26 periods ahead
When these indicators were created back in the 1930s,
a trading week was 6 days long.
9 periods or days = one and half week
26 periods = one month
52 periods = two months
Now that the trading week is 5 days, one may want to modify the parameters to the following:
7 or 8 periods or days = one and half week
22 periods = one month
44 periods = two months