Well the SP did jump 20c in 2 days so a retrace was always on.
Besides PLA has done this kind of thing before:
06-May $0.91
07-May $1.05 (+14)
08-May $1.00 (-5)
11-May $1.19 (+19)
12-May $1.10 (-9)
13-May $1.25 (+15)
14-May $1.18 (-7)
Up and down like a pair of pants at a mooning parade