There is nothing much I can say but I will try to say a few things.
First of all, 3M company is one of the strongest companies in the DOW Industrial average, you can see that by plotting the Dow on the chart.
Swing trading works very nice on this stock, breakout trading too.
We had a retest of the previous resistance, now support. At this level we had an inverse hammer followed by a long day, volume not so good. Also, the pullback stopped at 38.2% fib.
Earnings are in 2 weeks so that shouldn't be a problem. Long on market open if there is no ugly gap down.