A market player who is confident that share prices will rise and buys a financial instrument with an expectation of selling it at a higher price.

预计标的价格将上涨因而买进某种金融工具，等待涨价后再高价卖出标的的市场人士。

youdao

With over 10 years of manufacturing experience, Yuh-Dak, an active market player, has developed and produced high-precision machines that are customized to market trends and easy to maintain.

故煜达所研发与制造出的机械，乃具备了高精度、易维修以及符合时代潮流等特性。

youdao

"China is positioning itself to be a very strong player in both the import market in their own country but also their domestic market.

VOA: special.2010.10.20

Do we understand that Governments have a duty to regulate market behaviour, but ought to avoid becoming a market player?

BBC: News | UK Politics | Paddy Ashdown's speech

Hedge funds, in the simplest terms, are private, unregulated investment opportunities reserved for the wealthy and financially savvy market player.

CNN: Peering over the hedge

With the portable storage market approaching saturation, the portable MP3 player market is showing lots of promise--and lots of competition.

FORBES: Iomega Hopes The Music Will Go On