A stoush with the board of Hunter Hall's listed investment company in 2015 sowed the seeds of Peter Hall's dissatisfaction with life at the helm of his eponymous fund manager, culminating in his shock exit.

In his first interview since resigning last week as the chief investment officer at Hunter Hall, Mr Hall, 56, has vowed to return to stockpicking as an "aggressive" private investor after his six-month handover is complete.