It Figures

15 Key Types of Bond ETFs: 2008 Review

Very Interesting. I don't know much about bond conventions, so two questions. Why weekly performance? While I can get the message of each chart, I'm not sure what any particular plot point actually represents. Do I add (actually multiply) together sequential plot points to determine performance from dates " A" to "B"?

Second, are these based on total return numbers, or strictly the price return on the ETF? It would seem with these especially, periodic payments count.

Thanks