This week begins with the possibility that a war may actually be ending. Washington and Tehran have confirmed the outline of an agreement to halt the conflict with Iran, extend the ceasefire, and reopen the Strait of Hormuz on Friday. That is the main fact shaping today's U.S. session. Investors are repricing risk, oil, inflation, and the odds that the Federal Reserve may have a little more room to breathe. Oil prices are falling sharply, with Brent back near $83 a barrel and West Texas Intermediate near $80.