1. "Buy Supported by TF and ST" - What is TF?
2. It helps to plot %K also, because the crossover between %D and %K will
give the confirmation wherever required.
3. Around the same time the divergence is observed by you, if you look at the
lows of the %K line, there has been bullish divergence, confirmed by the crossover
between %K and %D. And it gave about 50 points after the crossover!
4. Data: In my charts, %D has not gone to OB zone after 2:00 pm, as pointed
out in your chart. I don't know whether my data is correct or your data is
correct, but the thing to be remembered is the data what we have may not
be correct also at times!
It's good that you are taking various parameters into consideration, for taking
a signal. I hope such approach will be more beneficial in the long run, though
hitting stop losses at times is not avoidable.. !!
Keep posting.. If you want to include features other than Stoch, you may
post in ST's other thread 'Thoughts on Day/Swing trading'