Dividend Discount Model Help!

Current annual DPS: $$2\mathrm{.}68.$

Annual DPS $5$ years ago: $$2\mathrm{.}37.$

Beta value: $0\mathrm{.}38.$

We forecast that past historical annual growth rate in DPS will continue.

U$.$S$.$ Treasury securities: $4\mathrm{.}3\%$ annual yield.

Expected market return: $9\mathrm{.}0\%.$ Current stock price: $$40.$

Using the dividend discount model, should we buy or sell this stock?