That's 6% annual return ... not monthly ... just glancing through the Marketwatch page seems to imply these are derivative stocks based on corporate bonds ... generally speaking, bonds have lower risk-of-default, but higher interest-rate-risk ...
How old are you? ... I ask because if you're young, you can take more risk-of-default, you still have many decades of earned income before you ... if you are old, near the end of your working life, you'll want to avoid risk-of-default ...
Are you already contributing the maximum amount in your retirement plan, IRA or 401(k) etc? ...
Mortgage Backed Securities are red hot right now ... don't be afraid of them ... just keep an eye on mortgage lending practices ... banks are being super careful about this now so the MBS' are a sound investment ... I'd say an important component of your diversified portfolio IMEIO ...
Asking for investment advice over the internet ... you are NOT risk averse ... ha ha ha ha ...