鉴于经济增长相对强劲，股价的上涨似乎是合理的，直到大约3月份市场主要受交易清淡的中小型股票驱动，突击超越5000点，将得经济处于危险的位置（同时，事实上，许多人仍然声称上涨不是不可持续的，因为在4月中旬股市交易的远期价格市盈率约为15，跟过往十年的平均值一致。
Given relatively strong economic growth, rising prices seemed justified until about March, when the market, driven by mostly thinly traded small- and mid-cap stocks, shot to over 5,000, placing the economy at risk. (And, in fact, many still claimed that the rally was not unsustainable, as the stock market was trading at a forward price-to-earnings ratio of about 15, consistent with its ten-year average, in mid-April.)