Investing.com -- Several Wall Street analysts on Wednesday warned about significant uncertainty around the crucial ceasefire deal between U.S. and Iran, raising doubts about its durability and the prospects for a long-term deal.

Equities markets rallied on Wednesday after U.S. President Donald Trump said he was suspending attack on Iran for two weeks, resulting in a pause for a five-week conflict that closed a crucial waterway for global energy supply and had sent equity markets reeling.

The Dow Jones Industrial Average jumped 1,384 points, rising 2.9%. The S&P 500 climbed 2.6%, while the NASDAQ Composite soared 3.3% in early hours of trading on Wednesday. Meanwhile, oil stocks fell sharply.

According to Iran’s Foreign Minister, the Supreme National Security Council has decided to reopen the waterway for two weeks, provided that all attacks stop. The statement added that transit must be coordinated with Iran’s Armed Forces.

Wolfe Research said that the ceasefire which is described as a two-week pause in hostilities, hinges on critical conditions—most notably the reopening of the Strait of Hormuz, a vital global energy shipping route. While U.S. officials have called for its “complete and immediate” reopening, Iranian statements suggest a more controlled approach, potentially involving coordination with its military and the imposition of transit fees.

Iran’s 10-point proposal, which both sides have described as a “basis for talks” includes demands such as continued uranium enrichment, removal of all sanctions, U.S. troop withdrawal from the region, and Iranian control over the Strait.

However, analysts have raised questions about whether the U.S. is softening its previous stance, as earlier proposals called for Iran to halt enrichment and limit its missile program. Analysts also noted that characterizing the plan as a negotiation framework may simply provide diplomatic flexibility rather than signal full acceptance.

With just two weeks allocated for negotiations, the timeline for reaching a comprehensive agreement appears ambitious. Much will depend on whether both sides are willing to compromise on key issues, including nuclear policy, regional security, and sanctions, according to a report released by Wolfe Research.