June 12 (Reuters) - Global banks are tightening restrictions on hedge funds’ leveraged bets in Asia's leading chipmakers including SK Hynix 000660.KS and Samsung Electronics 005930.KS following a blistering rally this year, Bloomberg News reported on Friday citing people familiar with the matter.

Brokers including Citigroup C.N, JPMorgan JPM.N and Goldman Sachs GS.N have raised the financing cost for hedge funds to take bullish wagers on SK Hynix and Samsung Electronics shares via swaps, the report said.