Short interest was relatively flat for NYSE and NASDAQ though NYSE Amex saw an increase for the two-week period to 15 February.
NYSE's short interest rose to 12.6 billion shares from 12.5 billion shares. The short interest on 15 February was equal to 3.3 percent of the total shares outstanding.
NASDAQ too was mostly flat staying at 6.8 billion shares across 2740 securities compared with the same across 2,742 securities in the previous reporting period. The short ratio, or the number of days' volume represented by outstanding share positions, was 4.9 days of average volume, compared with 5.4 days for the prior period.
NYSE Amex saw a slight lift in short interest to 404.9 million from 402.0 million. A short position of 5,000 or more shares existed in 340 issues. Some short position was shown in 501 issues.
NYSE and NYSE Amex are part of NYSE Euronext and NASDAQ is part of NASDAQ OMX Group.
