I told you, the model does not take into account valuation. The only thing it measures is supply/demand/price of the shares. As for right now, demand for these shares indicate higher prices. All stocks are over priced. Dont you know that?
Other strong buys are PANW and FEYE. The Riccaro Money Flow Quotient model measures price verses demand and supply of shares. That is the reason for this massive move of late of SHAK. Wither the story is sound or the valuation is realistic is not part of the formula. All stocks are risky. Some more than others. SHAK is very risky, but is going higher.