price channel scans - 21 days

markd

See "price channel scans - 10 days" for an explanation of the code below.

Channel length is 21 days (about one month)

The low or close crosses into the lower 20 % of the 21 day range ("xb" means crosses below):
In a strongly trending stock, a one month low often closely precedes a good entry


// K21 has been above 80 in the last 20 days
and [max(20, Fast Stoch %K(21,1)) > 80]

// K21 has not been below 20 in the last 5 days
and [1 day ago min(5, Fast Stoch %K(21,1)) > 20]

// check for low xb 20 AND K21 xb 20- strong stocks may not close below 20

and
[
[ 1 day ago min(21, low) + [ [1 day ago max(21, high) - 1 day ago min(21,low)] *.2] x low ]
or
[20 x Fast Stoch %K(21,1) ]
]

***

The close or high crosses into the upper 20 % of the 21 day channel (above Fast K 80)
In a strongly down trending stock this could closely precede a sell or sell short.

// K21 has been below 20 in the last 20 days
and [min(20, Fast Stoch %K(21,1)) < 20]

// K21 has not been above 80 in the last 5 days
and [1 day ago max(5, Fast Stoch %K(21,1)) < 80]

and
[
// high crosses into top 20 % of one month range
[ high x 1 day ago min(21, low) + [ [1 day ago max(21, high) - 1 day ago min(21,low)] *.8] ]
or
// close crosses into top 20 % of one month range
[ Fast Stoch %K(21,1) x 80 ]
]