Do a Intrinsic Valuation of Blackberry: (1) discounted cash flow techniques: what cash flow (dividends? Residual income? Free cash flows?) Historical or sustainable growth rate? Discount rate (WACC or cost of equity); (2) relative valuation: what are comparables (major competitors or industry average)? What price ratios (P/E, P/Sales, P/Cash Flow, P/Book value)? (3) technical analysis: plot some charts and calculate some numeric indicators to identify the overall market trend and individual stock trend in order to determine the right moment to enter the market