<p>A software problem forced Australia's stock exchange to halt trading 20 minutes after opening on Monday and it plans to reopen on Tuesday, the bourse operator ASX Ltd said.</p>.<p>The issue affected trading of multiple securities in a single order and led to inaccurate market data, ASX said.</p>.<p>"ASX and its technology provider Nasdaq have identified the root cause and a resolution path to fix it," it said in a statement, adding that the issue wouild be resolved overnight.</p>.<p>The market will re-open as usual on Tuesday at 10 a.m. (2300 GMT Monday), it said.</p>.<p>The problem came to light as the ASX's new equity market trading platform went live on Monday, despite more than a year of testing by customers, third parties, the ASX and Nasdaq .</p>.<p>ASX "accepts responsibility", Dominic Stevens, chief executive officer Dominic Stevens said.</p>.<p>"The obligation to get this right and provide a reliable and resilient trading system for the market rests with us," Stevens said.</p>.<p>In the short while that the market was open, shares ended the day 1.2% higher, its highest close since the end of February.</p>.<p>Neighbouring New Zealand faced nearly a week of cyber attacks in August that crashed its website and impacted trading. </p>
<p>A software problem forced Australia's stock exchange to halt trading 20 minutes after opening on Monday and it plans to reopen on Tuesday, the bourse operator ASX Ltd said.</p>.<p>The issue affected trading of multiple securities in a single order and led to inaccurate market data, ASX said.</p>.<p>"ASX and its technology provider Nasdaq have identified the root cause and a resolution path to fix it," it said in a statement, adding that the issue wouild be resolved overnight.</p>.<p>The market will re-open as usual on Tuesday at 10 a.m. (2300 GMT Monday), it said.</p>.<p>The problem came to light as the ASX's new equity market trading platform went live on Monday, despite more than a year of testing by customers, third parties, the ASX and Nasdaq .</p>.<p>ASX "accepts responsibility", Dominic Stevens, chief executive officer Dominic Stevens said.</p>.<p>"The obligation to get this right and provide a reliable and resilient trading system for the market rests with us," Stevens said.</p>.<p>In the short while that the market was open, shares ended the day 1.2% higher, its highest close since the end of February.</p>.<p>Neighbouring New Zealand faced nearly a week of cyber attacks in August that crashed its website and impacted trading. </p>