Currency pairs

Mean Spread/Observations

t Value

p-Value

Before

After

EUR/USD

0.000299546/55896627

0.000250615/82939402

−5.88

<0.0001

USD/JPY

0.0327962/51043904

0.0292068/51757883

−5.78

<0.0001

GBP/USD

0.000378533/45441761

0.000320470/65671063

−9.72

<0.0001