Ceasefire is bullish

On April 8, a two-week ceasefire between the United States and Iran sent global markets into a relief rally. The Dow surged over 1,300 points. The S&P 500 climbed 2.5%. The Nasdaq vaulted 3.5%. The VIX, Wall Street's fear gauge, tumbled to its lowest level since late February, dropping over 20% in a single session. The catalyst wasn't a product launch, an earnings beat, or a breakthrough model release. It was a geopolitical pause. And what it revealed about where tech valuations actually come from is worth sitting with.

The rally no product launch could match

Chip stocks led the charge. Nvidia, Intel, and Micron all surged. The PHLX semiconductor index hit a fresh record. Asian chipmakers followed suit, with South Korea's Kospi jumping nearly 7% and Japan's Nikkei gaining over 5%, its best day in a year. This happened on the same day Meta released Muse Spark, its first major AI model in over a year. Anthropic had just unveiled its Mythos Preview the day before, a model it described as a "step change" in capabilities. OpenAI had been making headlines about its upcoming IPO and hardware plans. None of those moved the needle the way "we stopped shooting" did. Meta's stock did rise on the Muse Spark news, but the broader rally had nothing to do with model benchmarks. Investors weren't reacting to reasoning scores or context windows. They were reacting to the prospect of ships moving through the Strait of Hormuz again.

The invisible supply chain

The war between the U.S. and Iran had closed the Strait of Hormuz, and the consequences extended far beyond oil. Qatar, which ships roughly a third of the world's helium through that strait, was effectively cut off from global markets. Helium isn't just for balloons. It's essential to semiconductor manufacturing. Chip fabs use it to cool wafers during lithography, flush toxic residues, and maintain the precise thermal conditions that advanced node production demands. TSMC, Samsung, SK Hynix, Micron, all of them depend on a steady helium supply to keep production lines running. By late March, Reuters reported that the helium shortage had already started impacting tech supply chains. The New York Times called it "an invisible bottleneck." Industry analysts warned that existing helium shipments would sustain Asian fab operations only through early April. After that, the picture would change rapidly. So when the ceasefire was announced, with Iran agreeing to temporarily reopen the strait, chip stocks didn't rally because AI got smarter. They rallied because the physical supply chain that makes AI possible was unblocked.

Tech valuations as geopolitical derivatives

For weeks leading up to the ceasefire, investors couldn't separate war sentiment from Big Tech sentiment. Energy prices spiked. Shipping routes were disrupted. The cost of raw materials for chip production climbed. Tech stocks were weighed down not by any failure of innovation but by the geopolitical environment surrounding their supply chains. The ceasefire cleanly isolated the variable. Nothing changed about the technology itself. No new chips were designed. No new models were trained. The only thing that changed was the geopolitical risk premium, and that alone was enough to send the Nasdaq to its best day in months. This suggests something that market participants have been slow to internalize: tech valuations are now, in meaningful part, geopolitical derivatives. The pricing inputs that matter most aren't innovation metrics. They're supply chains, energy costs, rare earth access, and the political stability of the regions where chips get made and the materials that make them flow. The S&P 500's forward price-to-earnings ratio sat at roughly 20x heading into the conflict. That premium wasn't just a bet on AI growth. It was, implicitly, a bet on geopolitical stability.

The Jevons paradox, extended

There's a useful framework here from 19th-century economics. In 1865, William Jevons observed that as steam engines became more efficient and consumed less coal per unit of energy, total coal consumption didn't fall. It soared. Efficiency reduced costs and expanded adoption. The AI industry has already been through its own Jevons moment. When DeepSeek released its R1 model in early 2025, claiming performance comparable to frontier models at a fraction of the training cost, Nvidia lost $600 billion in market value in a single day. The logic seemed sound: more efficient AI means less demand for chips. But that's not what happened. As AI got cheaper, usage exploded. More companies trained models. More teams experimented. More products shipped. The underlying infrastructure demand grew, not shrank. Satya Nadella's response was immediate: "Jevons paradox strikes again." Now extend the chain one more link. Cheaper AI needs more chips. More chips need more helium, more energy, more stable shipping lanes, more geopolitical cooperation. Peace, in a very literal sense, prints money for tech. The Jevons paradox doesn't stop at compute efficiency. It runs all the way down to the physical world, to the strait that ships pass through and the gas that cools the wafers.

The Singapore lens

Small, open economies feel this acutely. Singapore's tech sector is downstream of every geopolitical tremor. The Monetary Authority of Singapore noted in its January 2026 macroeconomic review that GDP growth remained resilient, supported by an AI-driven IT upcycle. But 94% of surveyed economists flagged geopolitical tensions as a primary concern, and two-thirds identified an AI-related market bubble burst as a key downside risk. Singapore sits at the intersection of global trade routes, chip supply chains, and AI infrastructure investment. When the Strait of Hormuz closes, the effects ripple through energy costs, helium access, shipping timelines, and ultimately the valuations of every tech company that depends on those inputs. The Investment Management Association of Singapore reported that 85% of its members anticipated heightened geopolitical risks and market volatility in 2026, up from 56% the year before. For founders in the region, the implication is uncomfortable but important: your runway is partly a function of wars you can't control.

What the market reaction actually reveals

The ceasefire rally wasn't about optimism that the conflict was over. Iran's Supreme National Security Council made that explicit: "This does not signify the termination of the war. Our hands remain upon the trigger." The ceasefire is conditional, temporary, and fragile. But markets didn't need permanence. They needed a pause, a brief window where the worst-case scenario, a total maritime blockade, was taken off the table. Bloomberg reported it was the biggest short squeeze since 2020. The "panic premium" evaporated. This is the lesson. Tech stocks didn't rally because anything got built. They rallied because something stopped being destroyed. The market priced in the absence of disruption as if it were innovation. And maybe that's the most honest signal about where tech valuations come from now. Not from what's being invented in labs, but from whether the world is stable enough to let those inventions reach production. The supply chain is the moat. Geopolitical stability is the infrastructure. And a two-week ceasefire, conditional and fragile as it is, was worth more to markets than every model launch of the quarter combined.