>>She says it was not a payoff, so case closed - without investigation.
>>Got it.
Actually information about HRC's trades is readily available and has been "investigated" repeatedly, which is where your calculated odds came from. It doesn't prove wrongdoing no matter how many times people pore over it. The only way to prove guilt now, is if somebody fesses up. IMHO to formally investigate in the absence of a whistle blower can only reach one conclusion and actually shields HRC because of the "double jeopardy" principle. Sorry but in the absence of a whistle blower, an investigation now would be vexatious political posturing.
"... They ne'er cared for us
yet: suffer us to famish, and their store-houses
crammed with grain; make edicts for usury, to
support usurers; repeal daily any wholesome act
established against the rich, and provide more
piercing statutes daily, to chain up and restrain
the poor. If the wars eat us not up, they will; and
there's all the love they bear us."
-- Shakespeare: Coriolanus, Act 1, scene 1