Cable climbs to 1.2173 as risk appetite rises on support for troubled banks

Major U.S. banks injected $30 billion to rescue First Republic on Thursday

Injection followed SNB's CHF 50 billion liquidity lifeline to Credit Suisse

See: nL1N35N0E6nL4N35O50F. 1.2173 is six pips shy of Wednesday's high

Offers may emerge around 1.2200 (Monday's high) if GBP/USD extends north

1.2203 was Tuesday's four-week peak (1.2202 = 61.8% Fibo of 1.2447-1.1805)