On Tuesday, a day after HSBC announced it had entered into a partial settlement with investors in Thema International Fund, a Manhattan federal district court judge dismissed all the claims against the bank and other defendants, largely on the grounds that the cases should be filed in Ireland and Luxembourg.

A judge has rejected Citigroup’s proposed settlement over the marketing of collateralized debt obligations it was also selling short, saying the bank created a billion-dollar fund “that allowed it to dump some dubious assets on misinformed investors” but would have been allowed to settle without admitting wrongdoing.

Convincing a judge to change his mind is no small feat.

Arbitrators have dismissed all of the Abu Dhabi’s sovereign wealth fund’s claims against Citigroup alleging that it was duped into injecting $7.5 billion into the bank in November 2007 in exchange for an 11 percent dividend just as the subprime crisis was rearing its head.

After a series of bruising rulings in his ambitious clawback suits on behalf of Madoff investors and the Ponzi schemer’s estate, trustee Irving Picard has filed a streamlined suit against a unit of BNP Paribas over nearly $1 billion allegedly transferred to the bank by a Cayman Islands feeder fund.