The dow dropped 3.3% in 2 days. OPK's traditional Beta would have suggested 1.1 x 3.3% drop which is 3.63%. OPK actually only dropped 2.24%. That is a deviation of over 50%. Market makers call what follows a "beta bounce". Accumulation and money flow are indication that a strong up move in OPK will follow at the first sign of stability in the market. The move to the up side on a beta bounce historically is 2 x the deviation to the down side. Therefore a 3% up move in the market should translate into a 6% up move in OPK. A logical conclusion is OPK moves higher quickly in the next few trading days.