They might get downgraded
"Upon a downgrade below the current rating level, Ambac estimates that the GIC asset portfolio is insufficient to cover the projected cumulative collateral requirement and terminations."
" -- Upon a downgrade to A/A2 or A-/A3, we estimate that the
collateral posting and cash requirement shortfall would
increase to $1.9 billion."
" -- Ambac will suspend its previously announced authorization to
repurchase up to $50 million in common shares. No shares have
been purchased to date. This supports the Company's goal of
maintaining sufficient parent company liquidity."
" -- The $850 million capital contribution to Connie Lee has been
postponed pending completion of Moody's review. This capital
will further strength our capital adequacy ratios at AAC."
http://ir.ambac.com/phoenix.zhtml?c=80774&p=irol-newsArticle&ID=1199066&highlight=
"Upon a downgrade below the current rating level, Ambac estimates that the GIC asset portfolio is insufficient to cover the projected cumulative collateral requirement and terminations."
" -- Upon a downgrade to A/A2 or A-/A3, we estimate that the
collateral posting and cash requirement shortfall would
increase to $1.9 billion."
" -- Ambac will suspend its previously announced authorization to
repurchase up to $50 million in common shares. No shares have
been purchased to date. This supports the Company's goal of
maintaining sufficient parent company liquidity."
" -- The $850 million capital contribution to Connie Lee has been
postponed pending completion of Moody's review. This capital
will further strength our capital adequacy ratios at AAC."
http://ir.ambac.com/phoenix.zhtml?c=80774&p=irol-newsArticle&ID=1199066&highlight=