Is Money Free Speech in the U.S.?

[KeyserSoze]

Corporate Personhood is a hotly debated concept in the U.S.
https://en.wikipedia.org/wiki/Corporate_personhood

In the U.S. money is considered free speech:
http://en.wikipedia.org/wiki/Buckley_v._Valeo

Wasn't Mutum Sigillum simply having a conversation with us in various "languages"?

[monsterer]

In the U.S. money is considered free speech:
http://en.wikipedia.org/wiki/Buckley_v._Valeo

I'm curious how that works - in the US, hedging trades is illegal; there is a FIFO rule which means you have to close trades in the order you opened them. Since that's a direct restriction on how you place your trades and therefore make money, does that not conflict with money being 'free speech'?