The weekly trend of BTB forms a converging triangle pattern, with support at 106600 below and resistance at 112000 and 110700 above, forming a pressure line. 106600 is also the position of the six-week uptrend line since below 80000. Losing 106600 would break the six-week uptrend line, indicating that the overall six-week uptrend is coming to an end. Support below 106600 is at 104000; 100000.