Buyers giving up? Declining OBV

I'm long AT&T and personally think anything under $30 is a discount, but something interesting is forming here....

Been trading sideways since New Years Day with crystal clear resistance and support lines, though OBV has been declining significantly, so red days are seeing much higher action.

Is this a sign of bulls getting tired?

Options volume for Mar19 is through the roof, so big money is definitely expecting a move here of some sort.

Thoughts?
Technical IndicatorsTrend Analysis

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