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At one point on Friday afternoon, Twitter’s stock was trading for under $ 16. 50 a share, down from nearly $25 earlier this month, when acquisition rumors began heating up. One analyst says it may be time for some cost-cutting, including layoffs, since the firm hasn’t been able to grow its way to profitability.

The yields on Italian and Spanish ten-year government bonds are now around 3. 2% , about half what they were a couple of years ago. The yield on existing Greek ten-year bonds dropped to below 6% this week; two years ago it was nearly 40%.