30 year futures

Any thoughts here? Going up on less and less volume during the day. If this were a stock chart, I'd short it but this thing really trends. Trying to learn what I can about trading them but haven't found much. Any thoughts or links to info would be appreciated. Thanks Daily chart looks like some kind of broadening channel going back to June of last year. Action from December to present could be a h&s top. A turn right in here would create a potential flag in the right shoulder. Fundamentally, other than fear of equities, why would anyone buy these at this level with the yield so low? These are tough to figure out.....