Feb 14 (Reuters) - Challenger Ltd CGF.AX
* Challenger has reaffirmed its fy17 life cash operating earnings guidance within a range of $620 million to $640 million
* Expects to maintain a fully franked dividend payout ratio of 45 to 50% of normalised profit for fy17
* "Challenger continues to target an overall normalised pre-tax roe of 18%" Source text for Eikon: ID:nASXPb4TQ Further company coverage: CGF.AX