The phrase "a massive share of" is correct and usable in written English.
It can be used to describe a large portion or percentage of something, often in contexts related to business, finance, or statistics.
Example: "The company captured a massive share of the market, significantly outperforming its competitors."
Alternatives: "a large portion of" or "a significant share of".
Mr Denham said: "The simple conclusion is... that the policies of the current government are now pre-empting a massive share of future national wealth to pay for their high-fee, high-debt policies.
But why is it such a delicate matter to say that in a properly socially mobile society, such a massive share of the sixth form at one public school would not be going to Oxford or Cambridge?
As seen in the chart above, the company's gaming division still accounts for a massive share of Nvidia's revenue.
The Yahoo Japan-Google deal gives both companies a massive share of the Internet search market in the world's third largest Internet nation (100 million web users).
Indeed, a massive share of frontline workers in the service industry is employed part time.
It's just a big love-in, a massive sharing of everybody's stuff.
These platforms allow a massive sharing of resources.
Google of course, which is already taking its massive share of search on the web to this new mobile platform.
Debate over how far ahead a separate military sector might be was prominent in the Soviet era, and we learned that the real advantage of Soviet military technology was its massive share of resources (2/3 to 3/4 of GDP) and its ability to "milk" the civilian sector (Balzer 1985 19899).
(Quickly, given the massive share of the Windows Phone market that it controls, Nokia's Lumia sales can be treated as an essential proxy for the health of the platform at large.
He added that the core product Perzo was built for massive sharing of massive amounts of information at financial-services security scale.
