U.S. stocks just continue to cruise right along, although investors seem to be displaying a healthy level of caution, looking over their shoulders as they whistle past the graveyard and bet on ongoing improvement in corporate earnings and economic growth. Despite extremely overbought technical conditions and regional hot spots that may ultimately threaten global economic recovery, investors seem undeterred.

After its long-awaiting breakout of the 1900 level the other week, the S&P 500 gained another +1.3% last week alone, but this double-low progression as I call it -- i.e., on extremely low volume and with persistently low volatility -- is worrisome.

Stocks ended last week on a high note, closing a smidge above strong resistance at 1900 for the S&P 500, which set a new closing high for the large-cap index, albeit on low pre-holiday volume. With the Memorial Day holiday giving us a short week of trading, all eyes are on voting in Ukraine, where a decisive win for billionaire business tycoon Petro Poroshenko seems assured.

The dreaded sequestration went into effect on Friday, and the market continues to be nervous about how it will play out.  Market sentiment seems to be that Congress will do little or nothing this month as the first effects of the budget have been relatively mild, like the cancelation of air shows by the U.S. Navy Blue Angels and the U.S. Air Force Thunderbirds. That attitude is likely to change as sequestration cuts begin to affect more sensitive areas like school funding and Medicare. The bottom line is, either Congress and the President will start learning how to play together for the good of the country, or the automatic budget cuts will take effect which will send ripples if not major quakes through the entire economy.

The S&P 500 closed today at 1309, down well over 1%. The NASDAQ closed down nearly 2%.  In light of relative valuations and current global prospects for the past six months, the question begs an answer: Why?  Let’s begin with an overview of the results of the past week.