Dividend on SOXS - Help!

I'm thinking of shorting the semiconductors using the ETF symbol SOXS 3x bear ETF. Somehow this ETF has a +6% dividend but that dividend seems extremely variable. Does anybody have experience in trying to calculate future dividends in this type of ETF? buying this seems like a great way to short semis and get paid to wait if I'm too early on the trade . Please help me understand this smart people! $Direxion Daily Semiconductor Bull 3x Shares ETF (SOXL.US)$ $Direxion Daily Semiconductor Bear 3x Shares ETF (SOXS.US)$ $INVESCO PHLX SEMICONDUCTOR ETF (SOXQ.US)$ $PHLX Semiconductor Index (.SOX.US)$