Published by Mark Smith-HalvorsenThe pound was moving lower against the dollar in global forex trading this morning (August 26th), impinging on yesterday's gains.At 08:00 GMT, the pound was trading at $1.5492, down from around $1.5530 at the close of trading in New York yesterday.Yesterday's rally marked a break from a sustained slump seen throughout much of the month, with increased risk appetite in equities encouraging forex brokers to move into higher-yield currencies.There are however, still underlying concerns about the pace and stability of the UK's recovery, and traders will be today examining revised quarterly gross domestic product figures for evidence that the economy may yet weaken further.Speaking to Reuters, CMC Markets analyst Michael Hewson said yesterday's rally was "a bit of a pause" in what is likely to be an extended downward trend."Sterling needs to get above the highs of this week at $1.5620 to sustain any rally," he said.For more information on foreign exchange treasury services and risk management, visit our Corporate FX site.