Knight Capital Forex ECN unit sees volumes rise 14% in May to $33.7 billion per day.

All the major Forex ECNs saw a down month, except FXall.

Hotspot FX's first month above $30 billion since last June.

Darren Mast, Getco COO, named Interim Head of Currencies at the merged company.

Good timing for Knight Capital's soon-to-be new owners, who will soon likely put Hotspot FX on the sale block.

Will Hotspot FX soon have a new owner?

Defections begin for Knight Capital, which is being acquired by rival Getco.

Getco likely to divest Knight's non-core assets, including Hotspot FX.

Will Hotspot FX soon have a new owner?

Either way, likely that Hotspot FX finds a new home.