- Quarterly IANS Update
The IANS share is updated quarterly on the first Thursday of February, May, August and November ("Quarterly parameters update date") and it equals to the listed capital for trading on the index record update date. - Special IANS Update
A special IANS update is designed to adjust the IANS to corporate actions affecting a share's listed equity, such as the distribution of stock dividends, rights offerings (in certain circumstances), share class unification, etc.
Special IANS updates prevail over the quarterly IANS updates and occur only under certain conditions.
