The Dow swung 835 points from high to low today and ended the day in the red. The S&P gave up a 1.8% gain. Why these moves should give investors pause. Plus Apple holding its latest product event today, but will the announcements mean a big boost for the stock?

Commodities and the dollar jumping this week as markets take another big breather. But will the downtrend continue in the coming weeks? The traders break down their outlook. Plus, the airlines have taken a major hit in recent days, but the broader transports actually eked out a gain this week. So where do these stocks go from here? The Chart Master is here to lay out his case.