** Shares of insurance firm Jackson Financial Inc JXN.N up 15.3% at $44.90, their highest since March 1
** Co posts Q3 adj. EPS of $3.80 vs analyst expectation of $3.53, according to LSEG data
** Q3 revenue of $2.61 bln also above estimates of $1.61 bln
** "We are on track to deliver on our financial targets for the second year in a row," President and Chief Executive Officer Laura Prieskorn said
** Stock sees biggest intraday gain in one year
** YTD shares up about 29%
(Reporting by Pavithra S in Bengaluru)