GBPUSD has been in a downtrend for a very long time and now it reached two crucial points. The first one is bottom of the trendline, which (it looks like) was able to held the price above. The second one is the major resistance line, which was created more than two years ago. Now we could see potential bullish movements that would push the price higher.
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Pair has bounced from the trendline and support zone pretty nicely.