美国证券监督委员会控告公司合谋人工操纵个人投资者小额股票买卖出价的差额。
The SEC accused the firms of conspiring to fix artificially wide "spreads" between "bid" and "ask" prices in the market for small stocks at the expense of individual investors.
黄金交易信托基金，如全球最大的黄金上市交易基金Street - TRACKS，它开创了一种不用通过购买小额股票就能：进入金属市场的简便方法。
Gold exchange-traded funds like StreetTRACKS have created an easy way for investors to get into the metal without having to buy mining shares.
大多数情况下，计算机交易使股票市场更加高效，对投资者，不管是大额还是小额交易，交易起来都更加容易和便宜。
Most of the time, computerized trading makes stock markets more efficient, and it's easier and cheaper for investors, both large and small, to trade.
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