* FTSE 100 up 0.1%, FTSE 250 down 0.1%
* GVC gains after forecast upgrade
* Just Eat tops blue-chip risers
By Muvija M and Shashwat Awasthi
Oct 9 (Reuters) - London's exporter-laden FTSE 100 lagged its European peers on Wednesday, as sterling gained on a report that the EU was ready to make a "major concession" on the Brexit divorce deal, while Just Eat helped the index hold on to slim gains.
The blue-chip index, whose components make two-thirds of their earnings abroad, was slightly off the day's highs but was still up 0.1% by 0858 GMT, while the FTSE 250 was down 0.1%.
A report that the European bloc was ready to offer a concession to the contested Irish backstop plan lifted the pound, with exporter stocks clinging to gains made earlier in the session when Brexit sentiment was unclear.
Shares in companies that earn a chunk of their earnings in the U.S. dollar including GlaxoSmithKline and Reckitt Benckiser were still offering the most support to the main index.
Just Eat climbed 2% to top the FTSE 100 leader-board, after its Dutch rival Takeaway.com reported a surge in quarterly orders.
GVC outperformed the midcap index with a 3% rise as the Ladbrokes owner boosted its annual core earnings target for the second time in three months on robust demand in its betting shops despite tighter regulation.
That news helped rival William Hill gain 1.5%.
Financials, which have been hammered this year due to the Hong Kong protests and fears of a recession, rose 0.6%.
The sub-index has plunged 6% since the start of 2019, severely lagging a near 7% rise in the FTSE 100 over the same period and being the only major sector with year-to-date losses.
The recovery comes ahead of the release of minutes from the U.S. Federal Reserve's last meeting scheduled later in the day, which could provide further insight on the extent to which the world's biggest central bank will venture out to support any slowdown.
With Sino-U.S. talks set to resume tomorrow and as the chaotic Brexit process drags on, investor sentiment has been on the cautious side since the new quarter began.
Those concerns also kept a lid on Wednesday's rise.
"Though a trade war breakthrough seems a distant prospect, there is always an element of unpredictably where Trump is concerned," Spreadex analyst Connor Campbell said.
"The next few days, then, are going to be nothing if not interesting."
(Reporting by Muvija M in Bengaluru; Editing by Bernard Orr)