TL;DR

Iran's semi-official Tasnim news agency reported Monday that the United States has offered a temporary waiver of oil sanctions as part of ceasefire negotiations. Brent crude retreated from an intraday high of $111.31 per barrel after the report. The US has not publicly confirmed the offer. Global bond markets remain under significant pressure, with US 30-year Treasury yields at 5.159%, the 10-year at a one-year peak, and Japan's 30-year yield hitting a record high. Stocks edged modestly lower as traders await confirmation of any deal framework.

What Happened

Early Monday, markets opened with fresh risk-off pressure after President Trump posted on Truth Social Sunday evening warning Tehran that "the clock is ticking" and that Iran had "better get moving, FAST, or there won't be anything left of them." Brent crude, the international oil benchmark, jumped 1.9% to $111.31 per barrel in early trading, extending its sharp rise from roughly $70 per barrel before the start of the Iran war.

Later in the morning, Iran's semi-official Tasnim news agency reported that the United States has proposed a temporary waiver on sanctions targeting Iran's oil exports. That condition -- temporary sanctions relief -- has been one of Tehran's central demands for agreeing to a permanent ceasefire and reopening the Strait of Hormuz to commercial shipping. Oil prices retreated on the report, with Brent pulling back from its intraday peak.

The US State Department has not publicly confirmed the proposal as of 10:30 a.m. ET on Monday, May 18. Bloomberg and CNBC both cited the Tasnim report, and Reuters has described the Iran-linked ceasefire talks as "on shaky ground." Separately, Iran has delivered a 10-point counteroffer to Washington via Pakistan that includes full sanctions removal, reparations, and a legal framework for reopening the strait -- demands that go substantially beyond a temporary waiver.

In bond markets, US Treasury yields extended their recent climb. The 30-year yield touched a one-year high of 5.159%, the 10-year hit its highest level in a year, and the 2-year yield reached 4.105% -- a 14-month top. Japan's 30-year yield rose to a fresh record high. UK gilts, which surged to an 18-year high of 5.187% last week during domestic political turmoil, saw a partial pullback Monday but remain elevated. Treasury Secretary Scott Bessent attended a G7 finance meeting in Paris as concerns over inflation and public debt weighed on global debt markets.

US equities opened weaker. S&P 500 futures were down roughly 0.2%, the Dow Jones Industrial Average fell about 0.34%, and the Nasdaq was slightly lower. The major US indices closed at or near record highs last week before a sharp Friday selloff driven by rising yields.

Why Oil Prices and Bond Yields Moved

The Iran war has been the dominant macro driver for global markets since it began earlier this year. Brent crude stood near $70 per barrel before the conflict; prices have since risen sharply as the Strait of Hormuz -- a passage through which approximately 20% of global seaborne oil flows -- was effectively closed.

Elevated energy prices are feeding directly into inflation expectations. Central banks globally, including the Federal Reserve, have been forced to consider whether persistent oil-driven inflation warrants rate hikes rather than cuts. Bond investors have responded by demanding higher yields to compensate for that risk, producing the global bond selloff now running across the US, UK, eurozone, and Japan.

The reported sanctions waiver offer introduced a new variable: it suggests Washington may be willing to make a material concession to secure a deal. If confirmed and accepted by Tehran, it would be the most concrete progress toward ending the conflict and could materially lower energy prices. Oil retreated on that prospect. But because the US has not confirmed the offer and Iran's full demands go well beyond a temporary waiver, the uncertainty remains high.

Adding to the backdrop, the Federal Reserve is in a leadership transition. Kevin Warsh was confirmed by the Senate on May 13 to replace Jerome Powell as Fed chair. Powell is currently serving as chair pro tempore until Warsh is sworn in. Market participants are waiting to understand how Warsh will approach monetary policy, particularly in an environment where inflation risks are still elevated.

Implications for the Most Impacted Trader Cohorts

Energy traders: The market is pricing a binary outcome. A confirmed deal with Iranian compliance on Hormuz would release a substantial supply shock, putting downward pressure on Brent and WTI from current elevated levels. If talks collapse or Iran rejects the terms, oil could push back toward or above the intraday high. The temporary nature of the proposed waiver adds complexity: it is a conditional offer, not a done deal.

Fixed income traders: Global yields remain at multi-year highs. A ceasefire confirmation could prompt a significant bond rally as inflation fears ease. Continued escalation, or a prolonged stalemate, keeps the pressure on rates across all tenors. The 30-year US yield at 5.159% and the Japan 30-year at a record high reflect just how much the war inflation narrative has repriced debt markets since the conflict began.

Equity traders: Stocks have been resilient but are now facing a triple headwind of elevated oil, rising yields, and geopolitical uncertainty. The S&P 500 hit a record high last week before giving ground Friday. A ceasefire deal could remove a major overhanging risk and trigger a relief rally. A breakdown in talks would likely bring renewed selling, particularly in rate-sensitive sectors.

Crypto traders: Bitcoin is trading below $77,000, having been dragged lower by broader risk-off sentiment. CoinShares data published Monday shows that weekly crypto exchange-traded product (ETP) outflows topped $1 billion last week, ending a six-consecutive-week streak of inflows. The Iran-linked risk-off environment is the primary driver cited for the reversal in crypto fund flows.

Potential Positives vs Negatives

Positives from the sanctions waiver report:

  • The first concrete US concession signals Washington wants a deal, not indefinite conflict.
  • Even a temporary Hormuz reopening would inject significant supply into global oil markets and ease near-term inflation pressure.
  • A confirmed framework could trigger sharp rallies across equities, bonds, and risk assets simultaneously.
  • The US mines-clearing naval operation is reportedly underway, a logistical step that could support any reopening timeline.

Negatives and risks:

  • The US has not confirmed the offer. It is sourced through Iranian state media, which carries political incentives of its own.
  • Iran's full demand list -- permanent sanctions removal, reparations, a regional security framework -- extends far beyond what a temporary waiver addresses.
  • Iran reportedly cannot fully open the strait because it lost track of mines it planted; even an agreed deal would take time to implement.
  • The new Fed chair's policy orientation remains unclear, keeping rates uncertainty elevated regardless of the Iran situation.
  • A confirmed deal would likely produce sharp oil-price declines, creating losers among energy producers and commodity-linked economies.

What Could Happen From Here

Base case (most likely over 24-72 hours): Iran acknowledges the US offer but demands broader concessions before agreeing to Hormuz measures. Talks continue without a breakthrough. Brent crude trades in a wide range around $105-112, bond yields stay elevated near current levels, and equities remain cautious. This scenario is confirmed by continued deadlock in diplomatic channels and lack of a public US acknowledgment of the waiver offer.

Upside scenario: The US formally confirms the sanctions waiver, Iran accepts and begins Hormuz mine-clearing in coordination with the US Navy. Brent crude falls sharply toward the $88-95 range as war-premium pricing is unwound. Treasury yields drop 15-25 basis points on easing inflation expectations. Equity markets rally broadly. Bitcoin and crypto ETPs see renewed inflows. This scenario is confirmed by a formal joint US-Iran ceasefire announcement or verified mine-clearance operations beginning.

Downside scenario: Iran publicly rejects the waiver offer or Trump escalates with new military action. Brent crude pushes back above $111, potentially toward $115-120. Treasury yields accelerate higher, putting additional pressure on rate-sensitive sectors. S&P 500 risks retracing toward the prior range. Bitcoin could see renewed liquidation pressure. This scenario is confirmed by a formal Iranian rejection via official channels, new US strikes, or a breakdown in back-channel talks.

What Traders Should Watch Next

  • Official US response: Any State Department or White House confirmation or denial of the sanctions waiver offer is the single highest-priority signal.
  • Iran's foreign ministry: Tehran's formal response to the waiver proposal will indicate whether the two sides are narrowing or widening the gap.
  • US Navy Hormuz operation: News on the mines-clearance effort will indicate whether logistical progress is being made, independent of political talks.
  • 30-year Treasury yield: A sustained move above 5.20% would indicate bond markets are pricing in a prolonged inflation scenario. A retreat below 5.05% would suggest some ceasefire optimism is being priced in.
  • Brent crude above or below $108: Serves as a real-time market verdict on how traders are assessing ceasefire probability.
  • Kevin Warsh swearing-in date: Any signals from Warsh on the rate path will matter particularly in the context of elevated inflation.

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Sources

Header image source: pexels by Rene Terp. License: PEXELS.