Currency pairs

Mean Spread/Observations

t Value

p-Value

Before

After

EUR/USD

0.000291848/96899420

0.000257716/144302398

−8.73

<0.0001

USD/JPY

0.0328171/99644887

0.0302340/108253555

−6.15

<0.0001

GBP/USD

0.000377797/81339240

0.000354553/144360623

−4.08

<0.0001