Wall Street heads into the Fed's July 28–29 FOMC decision in a cautious mood, with a fifth straight rate hold expected at 3.5%–3.75% under new Chair Kevin Warsh. But Brent crude is up roughly 20% for July on continued Middle East escalation, keeping inflation hot enough that some officials still want room to tighten further if price pressure doesn't ease — the exact backdrop that made today's news out of Jakarta land so hard.

Bank Indonesia Governor Perry Warjiyo resigned suddenly after seven years in the role, catching markets off guard right as they were bracing for the Fed. Destry Damayanti was installed as Acting Governor per BI's founding law, but the move still rattled confidence — the rupiah fell to Rp18,090/USD (-0.26%), IHSG dropped as much as 0.89% with closing at 6,130.59, and 10-year SUN yields ticked up ~2bps.

Fitch Ratings moved quickly to flag that Perry's departure raises policy-direction uncertainty and reinforces concerns about BI's independence, with foreign investors clearly on edge. That caution is already showing up in how the market is betting on the rupiah's near-term future — traders locking in exchange rates for one and three months from now are pricing the rupiah weaker than today's rate, at around Rp18,049 for next month and Rp18,120 for three months out. In plain terms: the market doesn't just think the rupiah is weak today — it expects the weakness to continue for a while. Markets aren't panicking, but they are actively pricing in more uncertainty.