Wall Street Market Report
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(Close): There were new record highs for the two main US indexes on Thursday.
The markets initially reacted uncertainly to the latest measures from the European Central Bank, losing early gains but perked up by the close.
The ECB cut interest rates, turning its deposit rate negative.
It also announced further measures to try to stimulate the eurozone economy.
Amazon caused some excitement by hinting at a mystery new product launch next Wednesday. Shares rose 5.5%.