The phrase "high market share" is correct and usable in written English.
You can use this phrase to refer to a situation when a company, or a product, has a larger amount of customers or sales than their competitors. For example: "Google has maintained a high market share for many years due to its innovative products and services."
Steel imports are taking historically high market share while the domestic industry is producing at half its capacity.
But an airport where Southwest has a high market share relative to other discount airlines will, surprisingly, also see an increase in prices.
Network effects and Google's high market share notwithstanding, it would not be infeasible to duplicate its infrastructure, says the Bundeskartellamt, Germany's competition authority, in an internal report.
The movie studio has had a string of successful years; the music business has high market share, but its profitability has been in decline.
The high market share concentration also makes for a less stable banking system that is more vulnerable to future banking crises, they said.
Tenet's strategy has been to gain high market share in a region so that it can negotiate better deals with managed care companies.
RIL has no net debt to speak of and enviably high market shares in petrochemicals.
Beyond that, he said, he looks anywhere he can find strong brands and high market shares.
"The initial investigation shows that the combined company would have high market shares in European markets," Mr. Monti said.
The commission said the combined entity would have high market shares in the markets for patient monitors, mobile X-ray mandines and mammography equipment bought by hospitals.
"This shows that with the right facts, efficiencies can make a difference, even at first phase, and even in a horizontal merger with high market shares.
