Companies that have stopped programming, whether permanently or for a period of time, or have gone defunct are excluded from the ranking. For example, Aspen Santa Fe Ballet’s professional company was shuttered in March 2021. However, ASFB has recently begun commissioning works again, but because of the lag time, they will not be included in the current Index. California Ballet dissolved in 2020 during the pandemic. Alonzo King LINES is excluded, as the company only commissions work by a singular choreographer – their Founder.  Classically inspired companies also move in and out of the ranking of the Largest 50, creating additional complications in tracking programming year to year. For example; Ballet Magnificat! moved into the Largest 50 in 2022. Due to this recent shift, DDP does not have adequate data to accurately rank them against the rest of the Largest 50. Festival Ballet Providence is no longer ranked in the Largest 50 but have been included in the ranking as DDP has sufficient longitudinal data to rank them.