These houses were built by property speculators.

这些房屋是由地产投机商建造。

The news of plummeting stock prices dismayed speculators.

股票价格骤然下跌消息使股民大为失望。

Some speculators have tried to corner wheat.

有几个投机曾试图囤积小麦。

CONFRONTED by a growing army of speculators, on June 11th the Reserve Bank of New Zealand decided enough was enough—and let rip with the peashooter.

面临着不断壮大投机大军，新西兰储备银行于6月11日决定已经忍无可忍了——遂拿出玩具枪一通。

If the price efficiency underlying index after the listing of 50ETF isn’t improved, liquidity traders will sustain losses with information traders, speculator and arbitrager can’t profit.

如果50ETF上市后上证50指数市场定价效率没有提高，那么，一方面不知情交易在与知情交易进行交易时就会遭受损失；另一方面投机和套利在进行ETF套利时也往往不能获得利润，甚至可能发生亏损。