I am also comparing SWC against PALL and PPLT. Based on the 1m and 3m charts, SWC and PALL were completely out of sync with the latter losing 10% the past 4 weeks. SWC correlates with Pd a little better, but no better than SP500 if you look at the recent charts. The correlation between SWC and PALL used to be strong. I would add some shares at the close today and anticipate it will go higher next week.
It seems that MMs are trying to pin the price at $14 based on the options volume spread today, regardless of the earnings outcome. In past few weeks, SWC has not tracked the Pt/Pd price well at all. Instead, it has mostly followed the market. If the general market cooperates next week, the share price will be free to climb again.