Holding that deception occurs when "investors are misled to believe that prices at which they purchase and sell securities are determined by the natural interplay of supply and demand, not rigged by manipulators"
Holding that to prove loss causation, a plaintiff must allege "that the misstatement or omission concealed something from the market that, when disclosed, negatively affected the value of the security"
Holding that the mere fact that a non-disparagement clause could conceivably be used to hide illegality did not render it void as illegal or contrary to public policy
Holding that a party is not "relieved of the burden to establish to a reasonable degree of specificity" that attorneys' fees it seeks are "associated with" a successful claim