US-Iran Agreement Eases Market Fear, May Mark Start of New Crypto Bull Run

News that the US and Iran had reached an agreement is rapidly improving sentiment in the cryptocurrency market, according to an analysis.

On June 15, on-chain analytics firm Santiment said market mood swung sharply from fear to opportunity after the US and Iran announced a peace agreement.

"For months, investors had worried about supply-chain disruptions, inflation and mounting geopolitical instability," Santiment said. "But this agreement has raised expectations for normalized trade routes, easing tensions and a recovery in economic activity, leading markets to price in the opposite scenario."

After the announcement, international oil prices tumbled. Risk appetite also rebounded, with money flowing into Bitcoin, Ether and major altcoins.

Santiment also highlighted that the rebound appears to be driven more by expectations for the future than by current fundamentals. Markets typically move ahead of reality, it said, and investors are interpreting the agreement as the first sign that uncertainty that had persisted throughout 2026 is beginning to ease.

"If inflation pressures ease and institutional investors regain their appetite for risk assets, this advance may be viewed not as a one-day relief rally but as the start of a new bull market," Santiment added.