Stocks saw elevated volume and volatility last week, and the 100-day simple moving average on the S&P 500 proved to be the proverbial line-in-the-sand for bullish investors. I opined last week that the market seemed to have sufficiently cycled back down to oversold territory, so with a little more technical consolidation and successful testing of nearby support levels, the next move higher could easily commence at any time. So, the question remains as to whether that was the big new buying opportunity, or whether more backing-and-filling is needed.

The weakness last week in U.S. stocks was entirely expected. As I mentioned in last weekend’s article, the technical condition had become quite overbought and the market was overdue to take a breather and pull back a bit. Also, our SectorCast rankings had moved from bullish to a more neutral bias.

Stocks provided a volatile and sweat-inducing ride last week in what many investors and traders thought might be the big selloff that so many have been predicting. Although the market tends to follow a path that fools the greatest number of people, sometimes it behaves in a self-fulfilling prophesy.

Last week, I talked about the impressive strength this year in the Dow Jones Transportation Average, but it since has been hit by investors’ renewed worries about global economic growth and financial stability. Its fall has been led by weakness in the airlines.

The Dow Jones Transportation Index is up an impressive +16.7% year-to-date through Wednesday, as it runs interference for the broader Dow Industrials (up +10.8%) and tries to prod the bulls ahead.

Well, Punxsutawney Phil didn’t see his shadow on Saturday, so the weather forecast is positive. However, investors having their own version of Groundhog Day at Dow 14,000 and S&P500 1500 are still trying to decide whether to retreat to safety in anticipation of a severe market pullback. Weakness on Tuesday seemed like the start of a correction, but alas the bulls would have none of that.

Earnings season is in full swing, and on balance, investors are liking what they hear. Tech leaders Google (GOOG) and IBM (IBM) got bought in truckloads after their fine earnings reports, although Apple (AAPL) disappointed after the close on Wednesday.