A proven technical measure suggests that selling pressure is likely to subside for these Dow leaders in the weeks ahead, possibly leading to some good buying opportunities.

The selling was heavy on Monday, and early Tuesday, overseas markets are also sharply lower. Clearly, there are no signs yet that the market has bottomed, though as I have noted recently, the sentiment measures are reaching levels that are more consistent with a market bottom than a market top.

Not all stocks bottom or top out together, so for those investing or trading individual stocks, a different approach is needed than if you are trading a market-tracking ETF like the Spyder Trust (SPY).

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Starc band analysis can be very helpful—as recently demonstrated by the gold market—in identifying high- and low-risk buy or sell zones. The table above lists the ten most oversold Dow stocks based on the proximity to their monthly Starc- band as of the end of September.

The oversold column reflects the percentage that the stock is above its monthly Starc- band. For example, Caterpillar Inc. (CAT) closed last Friday (Sept. 30) at $73.84, just 0.3% above the monthly Starc- band at $73.64. CAT was down sharply Monday to $70.55 and is now well below its monthly Starc- band.

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Chart Analysis: Caterpillar Inc. (CAT) tested its monthly Starc+ band for four months early in the year, reaching its high of $116.55. With Monday's close, it is now down 39.4% from its 2011 high.

  • The major 50% Fibonacci retracement support stands at $69 with the 61.8% support at $57.80

  • The relative performance, or RS analysis, staged a major breakout in 2010 and overcame resistance at line a

  • The pullback in the RS looks normal so far, and the long-term trend suggests CAT will continue to outperform the S&P 500

  • The monthly on-balance volume (OBV) did confirm the new highs in early 2011 but has now pulled back to support at line b

  • The weekly and daily OBV (not shown) are both negative. The recent selling has not been as heavy as what occurred in August

  • Initial resistance is at $80 and a move above the $87-$88 level is needed to stabilize the near-term outlook

The long-term outlook for the 3M Company (MMM) is a bit less positive. The decline from the July highs at $98.19 has been quite sharp. There is a level of good support on the monthly chart, line c, in the $66.60 area with the major 61.8% support at $62.90.

  • The monthly RS analysis is neutral but still above support at line d. The weekly and daily RS analysis (not shown) are both negative

  • Monthly OBV has dropped back below its weighted moving average (WMA) but is still well above the long-term uptrend, line e

  • There are no signs yet from either the daily or weekly OBV that the stock is bottoming

  • Initial resistance is at $78 with further resistance at $81.60

NEXT: Latest Chart Patterns for Dow Leaders Disney, Alcoa   

Tickers Mentioned: Tickers: CAT, MMM, DIA, AA