RE:Explanation pls. HOUmy explanation is that horizons etfs can behave which ever way they like. there was a sign for a long time that HOU just wasn't working out. HVI went to zero about a year or two ago. HNU is behaving well this year. it likes to move oposite of HOU often, but then just shoots up about 20% when it feels like it while HOU gains only about 5% If history is any guide, we should see another 20% day for HNU soon.