What is the dollar index, and should beginners watch it?

The DXY measures the dollar against a basket of six currencies, with the euro carrying the most weight. It gives a quick read on dollar strength, but it can mislead because the euro dominates it.

Do you use it?

• how you use the DXY in your routine
• whether it ever gave you a wrong signal
• what you'd tell a beginner about it

The DXY guide explains the basket and the weights.