How can I create a watchlist that shows me stocks that went up 150% within 6 months?

[murkr]

I'm trying to follow stocks that are moving straight up in a not-so-sustainable way. Stocks that are up 150%+ within 6 months.

What criteria do I select when creating this type of watchlist?

I'm not trying to buy in at the top of course. But these huge moving stocks end up having a lot of eyes watch them so when the stock significantly retraces I'd buy the dip and shoot for a 10-20% profit.

 

[rad14733]

Something like the following...

def agg = AggregationPeriod.MONTH;

def price = close(period = agg);

plot trend = if price > price[6] + (price[6] * 1.5) then 1 else Double.NaN;

 

[Pensar]

Something like the following...

def agg = AggregationPeriod.MONTH;

def price = close(period = agg);

plot trend = if price > price[6] + (price[6] * 1.5) then 1 else Double.NaN;

Here's my contribution, didn't know that @rad14733 already posted after I started. I had created it as a scan for the monthly timeframe -

# Check results before using
# uses the 6 month low, scans for a 150% increase from that point
# scan on a monthly timeframe
plot scan = close >= (2.5 * low[6]);

I noticed an odd thing when first coding this. I had originally coded the multiplier as 1.5, but when testing the results, it was showing signals at 50% and greater, not 150% and greater! After a good bit of testing, I multiplied it by 2.5, and it finally starting showing at 150% gain. Then I realized . . .

10 * 1.5 = 15 or a 50% increase over the original amount, but a 150% increase above 0
10 * 2.5 = 25 or a 150% increase over the original amount

My initial math calculation to get "150% above the 6-month low" was wrong, as I need to treat the low price as "0". Multiplying by 1.5 gets 150% above 0, not the 6-month low. Unless my mind is completely befuddled. I'd appreciate someone (@rad14733, @mashume, @SleepyZ, @XeoNoX) to check if my math conclusion is correct.

Here's the code I used on the chart to check percentage values -

def l = low(period = aggregationperiod.MONTH)[6];
plot c = if close >= (2.5 * l) then l else double.nan;
c.setpaintingstrategy(paintingstrategy.line);
c.setdefaultcolor(color.red);

Note: I did my measuring of percentages using the line drawing tool. Wondering if the tool is somehow inaccurate.

Edit: posted wrong test code, changed it for the code in question.

 

[rad14733]

@Pensar Yes, n * 2.5 should yield the same result as n + (n * 1.5)... I almost posted the incorrect math myself before catching the error...

 

[Pensar]

Thanks @rad17433. Think I need to clear my mind, today's been a long day.