cross-ownership
noun [ U ]
FINANCE ukusthe situation in which two companies hold shares in each other:
The two automakers hope that cross-ownership of each other's stocks will help to shore up their businesses during the economic downturn.
the fact of one company owning or controlling two or more companies with related interests, especially in the news and broadcasting industries:
The proposal would partially lift a 35-year-old ban on the cross-ownership of newspapers and broadcast stations.
cross-ownership restrictions/rules