50% gain in two and bit sessions, page-21

Not sure about called in but it definitely looks like a short squeeze to me. It could be a spontaneous squeeze that is self-sustaining as shorters scramble to cover, or it could be insider info or rumours that a debt refinance is imminent.

Either way the scale of the movement suggests some shorters are getting badly burned, which should please a lot of people around here. Volume is not huge but consistent with the amount of outstanding shorts.

Shortman has SGH listed as the biggest increase in shorts on the entire ASX for the last week of the year (up from 2% to 7% of total stock), meaning a lot of people shorted below 25c. There would be some thousand-yard stares on the Sydney trading floor right now I bet. Wife might even have to sell the Cayenne.