The phrase 'unexpected market' is correct and usable in written English.
You might use this phrase when referring to a market that experienced a change in consumer behavior that was not foreseen or anticipated. For example, "The company was surprised when their product saw an unexpected market resurgence in the past year."
That can lead to some unexpected market movements.For example, Bloomberg says Treasury bonds had their best month for 12 years in November.
The rule, adopted in 2010, requires brokers and dealers with direct access to American exchanges to put controls in place to respond to unexpected market failures.
Global growth forecasts may have been trimmed but they're still healthy, and investors are being advised to ride out a dose of unexpected market turbulence.
You could substitute the names, but this story of self-interest, unexpected market events and huge losses is similar to almost every other financial blowup of the last two decades.
Wojciech Inglot, a Polish chemist and cosmetics executive who developed a "breathable" nail polish that found an unexpected market among Muslim women, died on Feb. 23 in Przemysl, Poland.
Unfortunately for the Tories, the Lib Dems are led by Nick Clegg, described by Boris Johnson as a "cut-price edition of David Cameron hastily knocked off by a Shanghai sweatshop to satisfy unexpected market demand".
In one unexpected marketing success, after Methodist advertised a coming brain-surgery Webcast, a man called, volunteering to be the patient.
Liberate, which has 125,000 customers in the United States and 1.1 million worldwide, said the order required the company to spend $2 million in unexpected marketing, personnel and testing costs.
But the airline is easyJet, known for its forays into unexpected markets, and the country is Jordan, which has mostly been spared the kind of protests that have toppled leaders elsewhere.
Ryan and his staff have altered the way people look at the Jets and given the team an unexpected marketing boost as they move into the New Meadowlands Stadium, where the Jets will have a new identity even though they will still share quarters with the Giants.
Others have tried a political explanation, reading the cartoon conflicts between nice Gauls and nasty Romans as a thinly veiled attack on American imperialism and the dominance of the new superpower (hence, they suggest, the unexpected niche market for the series in China and the Middle East).
