Finally, the burgeoning diversity of structural offerings (fractional ownership, fractional cards, charter cards, ad-hoc charter) creates an environment where clients may employ a portfolio of solutions, tapping each alternative depending on the cost profile of each trip. Certain trips can be most economically served by fractional, card or charter. If a client gets to cherry-pick for each trip, the fractional provider typically absorbs the least efficient travel. Partly in response to this, the larger fractional companies now position themselves as "solution providers", and offer fractions, cards, charter and full aircraft management.