Updates share moves, adds analyst comments
** Super Retail Group SUL.AX falls as much as 7.1% to A$16.03, its lowest point since August 20
** Stock marks its largest intraday pct fall since late-February
** Supercheap Auto owner terminates CEO and MD Anthony Heraghty with immediate effect; names current CFO David Burns as interim CEO
** Says board acted on new information about Heraghty's relationship with co's former chief HR officer, concluding his earlier disclosures were inadequate
** Morningstar, however, notes that Heraghty's dismissal is unrelated to operational performance, does not expect termination to materially affect co
** YTD, SUL gains 12.2%
(Reporting By Sherry Philips)
((sherrymary.jacob@thomsonreuters.com;))