BLDR ranked as a strong buy

I received this "chart of the day" through barchart.com
They have this stock as a strong buy, both long term and short term. WOW

I'm teaching myself about Stochastic Oscillators today.
With Stoch set at (14,3,3) the most recent low risk entry point was on 18DEC17
If I had set it at (14,3,1) the entry point would have been the 15th

Does it make that much of a difference? Kinda
On the 15th, the stock price varied between 19.59 and 20.33
On the 18th, the stock price varied between 20.08 and 20.60
That's significant for my wallet :)

Also, I think there's a possibility of a bearish divergence.
On both the 26th and the 27th of December the stock price closed with a higher high
while the stochastic oscillator registered a lower high.
This could be a hint of a near drop in stock price?
That was 7 trading days ago. Is it still relevant?
Am I analyzing the chart correctly?

Time to watch and see