My Teach-Yourself Italian ain't none too good, but I read the term as 'claims locked in short-term' and extrapolate from the first example sentence a scenario of 'trade investments' : ........ held in other unassociated undertakings, as my own UK accountant would say, and such as associations, partenrships and companies.

Otherwise, I would have agreed with Phil G's translation in the discussion entry or another e.g. our colleague with an Anglo-Welsh name...