Stocks are now almost back to flat (green line on 15 minute chart, top left). Perhaps this disappointment is responsible.
excerpt from Zero Hedge:
The April ISM is out, and while it confirms last week's declining Chicago PMI data and the fact that the Japanese contraction has not even remotely impacted US businesses yet (and it will), the recent weakness predicted by various Fed diffusion indices is being confirmed. The ISM came at 60.4, a decline from 61.2 in March, primarily a a result of a fall in Production (-5.2), New Orders (-1.6) Supplier Deliveries (2.9) and Imports (-1.0). All of these metrics will drop far more once the Japanese contraction is truly appreciated.