RE:RE:SIO April 14th
My guess (and I could be wrong) is that Ralph took some customers with him to Cantor, and since Cantor doesn't currently cover SIO there is pressure to sell SIO and buy shares in a company Cantor covers.
One thing I've learned over the years is that investors sell for MANY reasons, many of them have nothing to do with the prospects of the stock. But investors only buy for one reason... because they think the share price is going up.
i.e., I wouldn't worry about Ralphie.