Custom USD Index L is a synthetic index calculated by using 7 USD currency pairs:
EUR / USD
GBP / USD
USD / JPY
USD / CHF
USD / CAD
AUD / USD
NZD / USD
Custom USD Index L reflects absolute value of USD against 7 major currencies: EUR, GBP, JPY, CHF, CAD, AUD and NZD
Custom USD Index L chart goes up as the absolute value of US dollar goes up.