The exchange-traded fund’s median bid-ask spread, expressed as a percentage rounded to the nearest hundredth, computed by: (A) Identifying the exchange-traded fund’s national best bid and national best offer as of the end of each 10 second interval during each trading day of the last 30 calendar days; (B) Dividing the difference between each such bid and offer by the midpoint of the national best bid and national best offer; and (C) Identifying the median of those values.