The Broad Index is a trade-weighted index used by the Federal Reserve to measure the performance of the US Dollar against a basket of 16 currencies. The central bank created the index as it was viewed that weighting in DXY overemphasized the Euro. The index is not traded, and thus does not carry a ticker symbol.
Yes, her can be an adjective if it is acting as a possessive pronoun. For example, She gave me her coat. Her is describing who's coat it is.
Definition: A word group with an adjective as its head. This adjective may be accompanied by modifiers, determiners, and/or qualifiers. Adjective phrases modify nouns.They may be attributive (appearing before the noun) or predicative (appearing after a linking verb), but not all adjectives can be used in both positions. Noun Phrases and Adjective Phrases.  2 There may be very little difference between a noun phrase and an adjective phrase in structures where the adjectives occur before the word it qualifies. 3  Most noun phrases consist of a head noun plus one or more adjectives, or indeed an adjective phrase itself.