According to my system, the day with the highest risk of a turn or acceleration of the current trend this week is Friday the 17th. There is also a minor risk peak on Monday the 13th which I assume is associated with the minor peak on Friday the 10th and the on-going market turn up which started at the end of last week. The ingrained buy the dip impulse should keep that bounce going for a day or so.
Given the deterioration of the market internals near new highs, there would appear to be an elevated risk of a very sharp move down in the coming few weeks. Some measures of sentiment have also reached extremes. For a good example scroll down the posts at twitter.com/charliebilello until you reach the long term chart of the Investor's Intelligence Bulls - Bears.