"top share" is correct and usable in written English.
You can use it when referring to the share of a market or of something that is the largest or most important. For example, "Apple holds the top share of the smartphone market."
Across the weekend, Picturehouse claimed top share, with 18% of Mr Turner's box-office.
For the former, Ms Bush brought in FTSE, a British firm that calculates (among other top share benchmarks) London's FTSE 100 index.
Morgan Stanley has a 34% stake in China International Capital Corp, which was the top share underwriter last year, but it is a passive one.
Regulators have given close scrutiny to liquor mergers, often forcing combining companies to sell assets rather than allowing them to control a top share of the market.
The three drugs that came out top share the capacity to broaden one's inner world and scope for emotional and spiritual attachment.
The low-cost, compact cars sold by Suzuki's India unit have the top share in that fast-growing market, and the automaker also has a growing presence in Southeast Asia.
The S&P 500 index of top shares rose more than 12% to break repeated records.
He sometimes tires of the diplomatic trenches and goes over the top, sharing his ideas with a public microphone.
The pan-European FTSEurofirst 300 index of top shares ended down 0.3 percent to 966.52 points, the lowest close since May 25.
The pan-European FTSEurofirst 300 index of top shares rose 0.2 percent, to 1,065.80 points, its highest close since Aug. 9.
In Europe, the broad FTSE Eurofirst 300 index of top shares, which has shed 5 percent in the previous 12 trading sessions, ended Tuesday's session 1.2 percent lower.
