Comments from bank analysts following the victory by 'No' at the Greek referendum

BNP economists have shifted their call for the Federal Reserve's first rate hike to December (from September) following the 'No' victory

Markets are likely to be stressed tomorrow morning with risk-off the order of the day
Good chance the ECB would move quickly to alleviate strains
Heightened uncertainty about Greece's continued membership of the eurozone is likely to continue for some weeks
Greece will try to reopen negotiations tomorrow and the EU will respond, but the base case is these will not get very far. There are still a couple of weeks before Greece has to make a EUR3.5bn payment to the ECB on 20th July, which we see as a very significant date.
The Fed's concerns about the possible impact of a Fed hike on markets and therefore on the economy will have intensified. We do not see these tensions being resolved quickly and so have changed our call for the Fed moving in September, which we now see as only a 30% chance. December is now our base case.
It is unlikely that there will be sufficiently smooth waters in Europe for the Fed to tee up a September hike at its late July meeting.
Barclays - Say a Greek euro exit remains most likely

"We see two possibilities, even if both are less likely than an exit. Europe and Greece could agree on a programme on the IMF's terms
"A more disruptive scenario would be one in which financial and macroeconomic conditions rapidly worsen and social unrest could result in a political crisis, yielding a more moderate pro-deal government"
JP Morgan - Greece leaving the Euro ... the baseline scenario

A probability of about 2/3rd at present
"We see possibilities of Greece remaining in the Euro zone, either via a last minute agreement with current government under the assumption that the ECB continue to maintain and potentially increase ELA (15%) or in case in which Tsipras steps down and a new unity government is formed (20%)."