The first half of trading on the Warsaw parquet ends with moderate success of the bulls side in form of increases of the WIG20 index by 0.7 percent. In this phase of trading usually not much happens and the activity should increase after Americans entering into the game. Besides recent increases in volatility in energy companies (which may mean the end of their relative weakness) is currently worth to pay attention to the banking sector. Particularly well act today PKO BP (WSE: PKO), which valuation rises above 3 percent.