Quote from Art Collins:
The short side of the 10- and 5-year notes is isn't a great signal, but on the other hand, it isn't uncontested. When you combine it with the recent downward slope on the daily charts, you have a resonable chance that new lows will be made on Friday.
Monday will be an interesting day in the indexes. That's when the recently established short month-of-year signal will overlap the short day-of-month signal for the first time. The markets are overbought. You may see downside fireworks soon enough. Don't be stunned if they occur a day earlier than the ideal date.
hit this link for historical results of the two overlapping calendar combo systems. (full-sized s&P). the next link gives you a yearly breakdown. pretty awesome if i do say so.