I think it's fairly clear that the events today constitute insider trading, plain and simple. The sharp rise in volume, 10 minutes before the official announcement - pure coincidence, maybe. Still warrants an investigation in any just society, and will never come due to congress having power over it.
This is just something to remember whenever you invest in the stock market now. Insider trading directly takes money out of the market from less informed investors, and that's all of us. The presidency has now established that they can siphon part of your money through its information asymmetry. This is effectively a tax on all investment in the stock market.
So what can we do about this?
Unfortunately, seemingly very little. The powers that be are in charge of pressing charges, so no charges will be levied. As they say, we just "don't have the cards". If anyone has any suggestions, please let us know. Until then, all we can do is remember that now, any investment carries an implicit tax, and trade / invest accordingly.