Scan For Volume Spike Pattern

[Tillearn]

Is it possible to scan for stocks that had a spike in volume and then decreased volume the next day or 3 days later. This is DRUG chart, where there was a spike on Day 1 and bigger on Day 2 and then decrease in volume for 2 days (Day 3 and 4) before another spike on Day 5. Mainly for momentum stocks. So prior spike in volume is greater than twice the volume on the decreased days. The below doesn't look right, so would appreciate any feedback. Thank you

input agg = AggregationPeriod.Day;
def avgvol = Average(volume(period = AggregationPeriod.Day), 50);
plot DecreaseVol = volume[1] > (volume[0]*2) or
volume[2] > (volume[1]*2) or
volume[3] > (volume[2]*2) or
volume[4] > (volume[3]*2) or
volume[5] > (volume[4]*2);

 

[Tillearn]

Any help in running a scan for this please?
Day 1: > 300 % increase in usual daily volume
Day 2: could be below average volume.. setting up for a squeeze the following day (s)

another scenario:
Day 1: > 200 % increase in daily volume
Day 2: > 300 % increase in daily volume
Day 3: could be below average volume.. setting up for a squeeze the following day (s)

Would appreciate anyone's help in setting up a scan for this or giving me some pointers. thank you!

 

[tellyt]

There are several built in Volume scans in TOS. First click add filter and then study and then volume
your First request might be met with unusual volume
Your second request would require multiple volume adds
I always add into my first line looking for volume > 1 Million
I have attached the screen shots of how to add filters and the scan for your 3 volume change with results

 

[halcyonguy]

Any help in running a scan for this please?
Day 1: > 300 % increase in usual daily volume
Day 2: could be below average volume.. setting up for a squeeze the following day (s)

another scenario:
Day 1: > 200 % increase in daily volume
Day 2: > 300 % increase in daily volume
Day 3: could be below average volume.. setting up for a squeeze the following day (s)

Would appreciate anyone's help in setting up a scan for this or giving me some pointers. thank you!

need more info

Day 1: > 300 % increase in usual daily volume
Day 1: > 200 % increase in daily volume
Day 2: > 300 % increase in daily volume

increase from what? yesterday? 2 days ago? an average?

why type 'usual' ? it doesn't mean anything.