** JPMorgan's shares JPM.N gain 1.1% to $146.75 premarket
** Jefferies upgrades JPM to "buy" ahead of the largest U.S.
bank's quarterly results later in the week
** Jefferies, in a Q2 bank earnings preview note, says JPM
has a stable earnings outlook but the broader sector faces many
uncertainties
** Says while the sector's valuations remain way below
historical avg, the near-term outlook is clouded by downward
earnings revisions
** Jefferies cuts Truist Financial TFC.N , Zions Bancorp
ZION.O and Hancock Whitney HWC.N to "hold"
** TFC slips 1.1% and ZION falls 1.5% premarket
** The S&P 500 banks index .SPXBK has lost 9.1% this year
versus a 14.8% gain in the benchmark S&P 500 .SPX
** JPM and Citigroup C.N to report earnings on Friday
(Reporting by Medha Singh)
((medha.singh@thomsonreuters.com))