Expect it to go higher as negotiations cement Iran's highway robbery. Which, yes, it is highway robbery, but it's robbery no one is able to stop without invading and occupying Iran to execute proper regime change... which no one, least of all the US, is stepping up to do.
The U.S. has lost all negotiating leverage. It's been demonstrated that they're unable to militarily impose their will on Iran, and they're far more sensitive to economic disruption than Iranians are--who are, as I type this, forming human shield rings around vital bridges and facilities, ready to die if the U.S. bombs them. Negotiations are, at this point, about the U.S. coming away with some face-saving outcomes.