listed entites of the group

[user_gary]

The realty sector has been the hardest hit, since the a housing bubble in the United States got worse and roiled stock markets worldwide. Unitech share prices have fallen by 76 per cent since the stock market scaled a new peak on January 10.
Azim Premzi of Wipro has moved to the fifth place, followed by Kumar Mangalam of Aditya Birla Group and Tulsi Tanti of Suzlon Energy. The only lady in the list of top ten, Savitri Jindal, wife of late OP Jindal and chairman of Jindal Group stands at the eighth position, having lost a net worth of 51 per cent.
The promoter's worth has been calculated by adding promoter's worth in the listed entities of the group on January 10 and September 19.



Please explain the emboldened parts to me. particularly I can't understand the meaning of "entities" in this context.

[Anglika]

Those bodies - companies - in this group listed on the Stock Exchange.