ODFL is a good trending stock, but volume is fairly thin. This can affect liquidly when entering and exiting trades.

The weekly uptrend has been long and linear - the pullbacks have become a little deeper but are more than acceptable on this timeframe.

On the daily chart, however, the pullbacks have caused a bit more of a concern. During early 2014 there were better charts to trade. Since the October 2014 pullback the trend does seem to have settled down. If you're comfortable with fairly large stops and low volume this could well be a long-term buy opportunity.
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