Dukes, those bonds matured 5yrs ago
I mentioned them to highlight this wasn't my first foray into the bond market.
If the 30 day rate is variable, then that is a variable part of your total
return. As rates fall the 30 day [is presumably falling] and reducing your return.
That's right, and exactly what happened. Overall, they returned an average of 8.1% pa over the 5 yrs they were issued.
What was bothering me is understanding what is influencing the daily change in a bond index funds unit price I'm invested in.
I was aware of price vs yield, and assumed a lower cash rate would cause a price increase which would be reflected in the index funds unit prices.
This is not what I'm seeing.
OK, as others have alluded to, news and events is the root cause of a bond price going up and down, every minute, hour, and day.
So basically, bond traders in the secondary market are buying and selling bonds based on the news and events that are happening, be it cash rates, sovereign debt etc.
It's a start, just wish I could find a resource with more detailed info.