I really don't like anything about the Caterpillar (CAT) chart whatsoever.
If this stock breaks below $82, it is in for a world of hurting. It has one incredibly long-term head and shoulders patter, and all it needs to do is break below $82 and it's showtime for the bears.
Also check out the shorter-term triangle pattern at play. It also coincides with $82 making that support level that much more important going forward.
Overall the stock looks incredibly bearish and I wouldn't be touching it at all.
Here's the CAT technical analysis: