Bollinger Band Breakout Scan Code (Up and Down)

1) I use 21 period, which is 1mo on daily.  You may prefere to use 20period and it is not a very hard adjustment

2) I use 2.0 standard deviations in calculating the bollinger bands (some folks prefer 1.5 or whatever).  Again, not a terribly hard adjustment to make

3) IF you need adjustments, let me know.  I will stick to my version vanilla here to avoid confusing anyone.


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Bollinger Band Breakout to Upside

TC2000:
C1 <= AVGC21.1 + 2 * SQR(ABS(C1 ^ 2 + C2 ^ 2 + C3 ^ 2 + C4 ^ 2 + C5 ^ 2 + C6 ^ 2 + C7 ^ 2 + C8 ^ 2 + C9 ^ 2 + C10 ^ 2 + C11 ^ 2 + C12 ^ 2 + C13 ^ 2 + C14 ^ 2 + C15 ^ 2 + C16 ^ 2 + C17 ^ 2 + C18 ^ 2 + C19 ^ 2 + C20 ^ 2 + C21 ^ 2 - 21 * AVGC21.1 ^ 2) / 21) AND

C > AVGC21 + 2 * SQR(ABS(C ^ 2 + C1 ^ 2 + C2 ^ 2 + C3 ^ 2 + C4 ^ 2 + C5 ^ 2 + C6 ^ 2 + C7 ^ 2 + C8 ^ 2 + C9 ^ 2 + C10 ^ 2 + C11 ^ 2 + C12 ^ 2 + C13 ^ 2 + C14 ^ 2 + C15 ^ 2 + C16 ^ 2 + C17 ^ 2 + C18 ^ 2 + C19 ^ 2 + C20 ^ 2 - 21 * AVGC21 ^ 2) / 21)



TOS:
#Many thanks to Hugh Bryant for help
#Ed Carter
def c = close;
input n = 21;        #hint n is the number of periods for the Moving Average
input SdMult = 2.000;    #hint SdMult is the multiplier for the Standard Deviation Bands
def SD = StDev(c, n);
def Avg = Average(c, n);
def BBupper = Avg + (SdMult * SD);
def bbUpperBO = c[1] <= BBupper and c > BBupper;

plot scan = bbUpperBO;


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Bollinger Band Breakout to Downside

TC2000:
C1 >= AVGC21.1 - 2 * SQR(ABS(C1 ^ 2 + C2 ^ 2 + C3 ^ 2 + C4 ^ 2 + C5 ^ 2 + C6 ^ 2 + C7 ^ 2 + C8 ^ 2 + C9 ^ 2 + C10 ^ 2 + C11 ^ 2 + C12 ^ 2 + C13 ^ 2 + C14 ^ 2 + C15 ^ 2 + C16 ^ 2 + C17 ^ 2 + C18 ^ 2 + C19 ^ 2 + C20 ^ 2 + C21 ^ 2 - 21 * AVGC21.1 ^ 2) / 21) AND

C < AVGC21 - 2 * SQR(ABS(C ^ 2 + C1 ^ 2 + C2 ^ 2 + C3 ^ 2 + C4 ^ 2 + C5 ^ 2 + C6 ^ 2 + C7 ^ 2 + C8 ^ 2 + C9 ^ 2 + C10 ^ 2 + C11 ^ 2 + C12 ^ 2 + C13 ^ 2 + C14 ^ 2 + C15 ^ 2 + C16 ^ 2 + C17 ^ 2 + C18 ^ 2 + C19 ^ 2 + C20 ^ 2 - 21 * AVGC21 ^ 2) / 21) 



TOS:
#Many thanks to Hugh Bryant for help
#Ed Carter
def c = close;
input n = 21;        #hint n is the number of periods for the Moving Average
input SdMult = 2.000;    #hint SdMult is the multiplier for the Standard Deviation Bands
def SD = StDev(c, n);
def Avg = Average(c, n);
def BBlower = Avg - (SdMult * SD);
def bbLowerBO = c[1] >= BBlower and c < BBlower;

plot scan = bbLowerBO;