• GBP/USD posts modest gains around 1.2770 in Tuesday’s Asian session. 
• The negative bias of the pair remains intact, with bearish RSI indicator. 
• The immediate resistance level is seen at 1.2840; the first downside target is located at 1.2735. 

The GBP/USD pair trades with mild losses near 1.2770 during the Asian trading hours on Tuesday. The modest recovery of the US Dollar (USD) helps limit the pair’s losses after retracing to 1.2710 in the previous session.  

According to the 4-hour chart, the major pair keeps the bearish vibe unchanged, with the price holding below the key 100-period Exponential Moving Average (EMA). The downward momentum is also supported by the Relative Strength Index (RSI) which stands below the 50-midline near 44.0, supporting the sellers for the time being. 

The lower limit of the Bollinger Band at 1.2735 acts as an initial support level for GBP/USD. A breach of this level will expose the 1.2700-1.2710 region, portraying a low of August 2 and a psychological mark. The additional downside filter to watch is 1.2615, a low of July 2.