(By Jon D. Markman) Stocks moved lower for the third consecutive day on Friday, something that hasn't happened in more than three weeks, as the bulls just couldn't capitalize on a short-term overbought condition. Measures of selling pressure eased as the bears rested their knuckles after a two-day pummeling.

Investors are worried. The big question – as always – is whether the primary uptrend remains intact.

And the answer is yes.

To understand just what that target should be, let's take a look at where we are right now.

Just before Wednesday's sell-off, measures of the supply of stocks moved to new lows, while demand moved to new highs. This means bull-market-trading rules remain in effect. But as the cyclical bull market matures a little, we need to change the target of our buying efforts.

Although it looked like losses would be cut in the early afternoon, a lack of demand resulted in the major U.S. indices settling gently at support near the high end of the August trading range. The Dow Jones Industrial Average lost 0.4%, the Standard & Poor's 500 Index lost 0.6%, the Nasdaq Composite Index lost 0.8%, and the Russell 2000 lost 0.5%.

All the major sector groups save healthcare finished in the red. The declines were the most severe among industrial conglomerates. The Industrials Select SPDR (NYSE: XLI) lost 1.4% thanks to a 2.5% fall in Textron Inc. (NYSE: TXT). Bank stocks were also weak as Bank of America Corp. (NYSE: BAC) dropped 2.2%. Defensive healthcare and utilities stocks were relatively buoyant with a gain of 0.1% for the Healthcare SPDR (NYSE: XLV) and just a 0.3% loss for the Utilities SPDR (NYSE: XLU).

Homebuilders were under some heavy selling pressure over the past week, likely the consequence of the U.S. Federal Reserve's decision to slow its purchases of mortgages. By spending $1.45 trillion, the Fed kept the difference between mortgage rates and the yield on U.S. Treasury debt very low.
Now, as these purchases taper off, mortgage rates will creep higher and erode some of the awesome affordability levels that are driving buyers to take advantage of the government's first-time homebuyer tax credit and stabilize the housing market. As a result, the iShares U.S. Home Construction ETF (NYSE: ITB) lost 2.7% on Friday and dropped 8.3% last week.

The declines of the past week have been in alignment with our expectation of a short-term correction before equities push on to what should be a more meaningful top near the 1,200 level on the S&P 500. A number of technical indicators, including the percentage of stocks over their 10-day moving average as well as breadth and volume measures, had begun to deteriorate after having moved well into overbought territory the prior two weeks.

We aim to run our portfolios for long-term holds during bull markets, so although we warned of weakness ahead we did not expect it to be serious enough to merit exiting positions. Still don't.

The big question – always – is whether the primary uptrend remains intact. And the answer is yes. Just before Wednesday's sell-off, measures of the supply of stocks moved to new lows, while demand moved to new highs.