There has been some problems with IB's market internals lately. Earlier this week the TICK values were off and now, the TRIN seems pretty abnormal as well. The attached graph show the NYSE TRIN today. It starts out at 0.5 but suddenly spikes up to 2.0 and remains there. Surely this can not be normal behavior for the TRIN index? Something looks very wrong, these rapid movements should not occur, or am I missing something?