How many times are you going to go around spouting this? Please, I implore you, find another "broken" ETF please. Learn how to find or calculate the intraday value and about dividends before you constantly spout this crap.
The SDS and ES have different closing times. You're seeing change in SDS from 4pm to 4pm and ES from 5:00 to 5:00. Last night between 4pm and 5pm there was a 12 point move in the ES. Maybe that's what's causing the discrepency.