Is Holcim turning around?

Today's close of Holcim (SIX:HOLN) of CHF 68.30 gives a buy signal but I don't trust it. On 4 May 2011 the price gapped down to a level similar to that on 1 July 2010, and that time the price dropped to a low of CHF 59.95 before a long-term recovery started.