** Firetail Resources FTL.AX soars as much as 33.3% to A$0.080, highest since January 14
** Stock posts biggest intraday pct gain since June 6, 2024
** Copper explorer secures option to buy two high-grade gold projects in the U.S.
** About 3.7 million shares change hands vs the 30-day avg of ~190,000
** FTL last up 28.3%, trimming YTD losses to 2.5%
(Reporting by Aaditya Govind Rao in Bengaluru)
((Aaditya.govindrao@thomsonreuters.com;))