Too much selling, not enough buying. Sometimes it happens. Aggravating isn't it. It will move back up, if not this week, then the next week or the week after. Patience is what is often needed with RSO.
Could be some folks on margin with some depreciating equities needed to cover. That is often the case with strong stocks that seem to get beat down and come as a surprise to others. The market has had consecutive down days and perhaps some folks had to sell what worked to cover what didn't?
Down again today. I think because the moment of truth is coming. They went up because of the dividend, but the next div is a few months away and will it be cut again? Will earnings get even worse? Lots of reits are suffering reduced earnings/dividends. Untill the earnings are actually presented and are (good?) it may be wise to wait. I think the smart money got out around XDIV, and wson't come back unless it gets really cheap or there is good news.
I don't know anything but when the market is going against trend (sector)I suspect something up. My guess is the earnings are lackluster however the distribution will remain the same. Seems like I(we)individual investor is the last to know.