BRICS PCG expects a volatile upswing today. It feels the strong decline witnessed yesterday will continue in early trade, a deep and weak opening qualifies as a buying opportunity, whereas an up opening will see some downside but either way an upswing will end the day.Hurdles for the Sensex, today will be at 10,107-10,148-10,238; Supports will be witnessed at 9,977-9,937-9,846.