1.  Sell their stake in SPX. They've have put this as an option in a few quarterly/annual reports. 

2.  Hope the share price gets higher than the acceleration clause price for the recently repriced warrants. This would raise a very small amount, but every penny counts. 

3.  Another PP. Getting a larger amount of money from institutions would be worth the dilution in my opinion. If Mika can't get this to happen, he will come to retail again to ask for money. 

4.  Something else I can't think of?  Maybe someone else can chime in with ideas.