#Gate广场四月发帖挑战 The breakdown of US-Iran negotiations, what is the impact on the capital markets?

On the morning of April 12, at Serena Hotel in Islamabad. Vice President Pence held a press conference that lasted less than four minutes, answered three questions, then boarded Air Force Two and left.
After 21 hours of marathon negotiations, no agreement was reached. Pence blamed Iran — "Iran refused to commit to abandoning nuclear weapons," and also said the US side offered the "final and best offer." Iran completely disagreed. Foreign Ministry spokesperson Baghaei said straightforwardly: "The unreasonable demands of the US side hindered the agreement."
Iran's national radio station was even harsher — "America's excessive demands are the fundamental reason for the breakdown of negotiations."
This was the highest-level face-to-face meeting between the US and Iran since the Islamic Revolution in 1979. After 21 hours of talks, three core issues were completely deadlocked:
Uranium enrichment: The US demands Iran abandon its nuclear weapons development capability long-term; Iran disagrees.
Strait of Hormuz: Who calls the shots? Iran controls this choke point for global 20% oil transportation.
Sanctions and compensation: Both sides have huge disagreements over the scope of sanctions relief and war reparations.
A source close to the parties described the scene: "Both sides' emotions fluctuated, the atmosphere was sometimes tense and sometimes eased." In plain terms, the talks collapsed.
The market has already given its first reaction!
First, the conclusion: this event's impact on the market is not a "black swan," but a "gray rhino stepping back."
Why say that? Because over the past two weeks, the market has been pricing in "successful negotiations."
In early April, after the ceasefire news, oil prices plummeted nearly 20% in a single day, with WTI dropping from above $120 to around $96, and Brent falling below $100. A-shares surged past 4,000 points, US stocks hit seven consecutive gains, and global risk assets collectively celebrated. This rally itself revealed a problem — everyone was too optimistic.
US-Iran has a 40-year history of hostility; can it be resolved in just 21 hours of negotiations? Obviously not. So, when news of the breakdown emerged, the market reacted very directly:
Crude oil: As of April 10 close, NYMEX crude futures rebounded from the lows after the ceasefire, with WTI around $96 and Brent around $95. Note, these are just pre-breakdown levels — the real reaction will come when markets open next Monday. If the Strait of Hormuz remains closed, oil prices returning above $100 is almost certain.
Gold: COMEX gold futures at $4,771 per ounce, with a nearly 2% weekly increase. Under the dual support of geopolitical risk and a weakening dollar, gold’s safe-haven logic remains unchanged. Some analysts predict that if US-Iran conflict restarts, gold could break through $5,000.
Dollar: During negotiations, the dollar index fell 1.6% in a week, the largest weekly decline since January. But this decline isn’t due to fundamental dollar issues; it’s market trading logic — "ceasefire success → oil prices fall → inflation eases → rate cut expectations rise." Now that negotiations have collapsed, this logical chain is broken, and the dollar may see a short-term correction.
A-shares: This is probably what everyone cares about most. On Monday’s open, a likely gap down, but no need for excessive panic — the reason is simple: although negotiations failed, both sides left a way out.
Iran said "the ball is in the US court," implying that if the US adjusts its stance, negotiations can continue; Pence also said he "still has hope," not ruling out further talks. This is more like "negotiation setbacks," not "total breakdown."
On the sector level, Monday will likely see a divergence: oil & gas, gold, and military industries benefit from geopolitical premiums, opening stronger; shipping and ports may have trading-driven valuation surges; new energy chains face short-term pressure; consumer stocks and brokerages are dragged down by risk appetite. The real risk isn’t the breakdown of negotiations today — that’s not the biggest problem.

The biggest question is — then what? Currently, there are two key uncertainties:
Uncertainty 1: Will the ceasefire be extended? After the ceasefire expires, if neither side makes concessions, the risk of restarting conflict is high. CNN’s front-line reporter described this negotiation failure as "a fundamental blow to hope for peace." And former US Middle East negotiator Miller put it plainly: "Iran has more chips — high-enriched uranium, the Strait of Hormuz, proxy armed groups. They’re not in a hurry." Indeed, Iran isn’t in a hurry. From Tehran’s perspective, as long as the Strait of Hormuz remains closed, global energy supplies stay tight, and time is on their side.
Uncertainty 2: Will oil prices surge again?
Historically, geopolitical conflict → oil price surge → secondary inflation rise → central bank tightening → stock market pressure — this script has played out more than once in the 1970s. Some analysts suggest that if US-Iran confrontation reverts to hostility, the world could revisit the late 1970s — when the oil crisis directly pushed US CPI into double digits.
What does this mean for capital markets?
Bullish oil traders need to reassess the premium space; gold bulls’ logic is further reinforced — geopolitical risk + dollar weakness + rate cut expectations; equity assets face short-term pressure, especially growth stocks sensitive to interest rates.
What should ordinary investors do?

First, don’t go all-in or clear positions based on a single news. Although the negotiations failed, it’s not a war restart. Both sides left room for future contact.
Second, if you hold oil & gas or gold positions, keep holding. Geopolitical risk premiums may persist.
Third, if you chased growth stocks or high-beta assets last Friday, don’t panic at Monday’s open. The resilience of A-shares is stronger than many think; "gap down first, then recovery" is more likely than a one-sided panic.
Fourth, closely monitor three signals: whether the Strait of Hormuz reopens — oil price indicator; whether US and Iran schedule the next round of talks — tension indicator; whether OPEC+ adjusts production policies — supply-side variable.
The 21-hour marathon negotiation, 40 days of war, 47 years of hostility — these figures alone show that US-Iran issues cannot be solved in a single negotiation.

Market prices in the "most likely outcome," not the "best outcome." Over the past two weeks, the market was too optimistic; now, probably, it will be "too pessimistic" for a while. But remember, extreme emotions are never a good strategy.
(The above analysis is based on publicly available information and does not constitute investment advice. Markets carry risks; decision-making should be cautious.)