Have a look at the lift chart below:
I'm used to looking at cumulative lift curve with respect to the baseline one (blue line) which
looks quite like many I've encountered before (i.e. the top deciles have the highest lift and the line eventually reduces itself to baseline).
However, I'm a bit confused by the lift (red line).
Is it really possible for it to be below the baseline for that long? Does this red lift line look strange to you? Maybe, I'm not interpreting it correctly or didn't run something right.