A deal with Iran in the next few days could send stocks and Bitcoin higher, but the latest signs point toward war, not peace.

• A short window for a US-Iran deal closes around October 27, right before the Fed's next meeting, an Israeli election, and the US midterms — all reasons Trump would want a deal done fast.
• After that window, Trump's motivation to make a deal drops sharply, and Iran has little reason to hand him a win once the pressure of those events passes.
• Recent signs point the wrong way: reports of nuclear scientists being pulled from facilities, diplomats being told to leave the region, and Trump drawing up war plans all suggest a return to conflict.
• Still, there are quiet signs of progress too — talks reportedly center on how long a new nuclear agreement would last and how much Iran would dilute its enriched uranium, not whether to negotiate at all.
• A real deal would likely push oil prices down and lift both stocks and Bitcoin, while a collapse back into conflict would do the opposite.

Outlook: The next few days should make clear whether this ends in a deal or a slide back toward war, with markets and Bitcoin moving sharply either way.