I bought at 3.86 during the last SPO, then later sold at 4.29 pre-ED. I'm not gonna go look up how many days passed from one to the other, but IIRC it was around 30. That was an 11.1% return for me.
I stand corrected about not much movement after a PO as reike & bobin pointed out to me. Bobin did you sell before th Ex-div? I might have been looking the dip after the EX. I will keep eye on the next PO.