I believe it works like this.....The price after the June dividend was 11.18 so the next dividend will be the difference between the price on the ex dividend date July 30 and 11.18. So if it was today it would be 11.30 - 11.18 = .12 cents dividend.
No complaints here, but THIS year the monthly distribution have been ~.06 +/- ... .12 would be DOUBLE that. When would it ever just be an increase in share price, i.e., chalked up to capital gains? I believe my buy in cost was 10.90.
I forgot the underlying assets in the fund can increase (or decrease) in value. So it remains to be seen how much of the increase is paid out in dividends. To realize the full value gain you would have to sell your shares so you collect the value of the increased share price as well.