U.S. stock indices surged on March 31, with the Dow Jones Industrial Average rocketing 1,125 points (+2.49%) to 46,341.51, the S&P 500 gaining 2.91% to 6,528.52, and the Nasdaq climbing 3.83% to 21,590.63 — the strongest single-day performance since May 2025. But the 'final-day rally' masked a grim reality: the S&P 500 fell 5.09% in March, its worst monthly drop since the 2022 bear market; the Nasdaq dropped 4.75%, and both indices posted their worst quarterly losses since 2022.
Low-Volume Rally + Elevated VIX: Short-Covering at Play
The biggest red flag was conspicuously low trading volume. The Korea KOSPI's March 31 volume was only 80% of its one-month average. Markets widely interpreted the bounce as a technical rally driven by short-covering and short squeezes, not institutional accumulation. The VIX volatility index closed at 25.25 — well above the normal 15-20 range, indicating investors remained on high alert despite the daily pop.
Adding to the fragility, President Trump's repeated 'TACO rhetoric' (claiming troops would soon withdraw and the war would end quickly) elicited diminishing reactions. The White House's announcement of a March 31 primetime speech failed to spark follow-through buying. A textbook 'low-conviction rally' — indexes up, but the market's spare cash may be best deployed going short.
Strait of Hormuz Disruption: Goldman Calls It 'Largest Supply Shock in History'
A sustainable U.S. stock recovery hinges on a genuine reopening of the Strait of Hormuz. The strait, which normally sees 100+ oil tankers per day, has recorded only 21 transits in the past month. Iran's Islamic Revolutionary Guard Corps has imposed a toll system; over 150 vessels sit anchored outside, blocking 20% of global crude and LNG supply. Goldman Sachs analyst Daan Struyven's team called it 'the largest supply shock in global crude oil market history', raising its 2026 Brent forecast to $85/barrel. Mizuho lifted its 2026 oil price outlook by 14% to $73.25/barrel. Multiple investment banks warned that oil hitting $150 could trigger a global recession.
Asian Capital Exodus: $52 Billion Outflow in March, Highest Since 2009
Asia bears the brunt of the oil surge, as 80% of its crude imports transit the Strait of Hormuz. March saw about $52 billion in outflows from Asian emerging markets, the largest monthly figure since the 2008 global financial crisis and dwarfing early-pandemic levels. Taiwan led with $25.28 billion in outflows (highest in the region), followed by South Korea ($13.5 billion) and India ($10.17 billion). Taiwan's outflow was nearly double Korea's. Foreign capital flight, currency pressure, and equity corrections are rippling across Asia.
While the MSCI Asia Pacific index rallied on March 31 (its best day since April 2025) and the Euro Stoxx 600 rose 2.5%, one-day gains cannot offset a quarter of bleeding. The big unknown: the April earnings season — will it hold or blow up? All eyes are on corporate results.