The Iran War has halted Qatari exports via the Strait of Hormuz and damaged a key plant, doubling helium prices and cutting 30% of global supply.

Severe disruptions hit tech (WDC/MU) and medical (GE/Philips) sectors, as helium is vital for manufacturing hard drives, chips, and cooling MRI machines.

These stocks are increasingly correlated with oil recently, showing lagged risk identification; medical stocks face momentum shorting, WDC is a squeeze name.

Helium is a critical input in high-tech manufacturing, medical imaging, and aerospace. Approximately one-quarter of the world’s helium supply originates in Qatar. Since the conflict in the Persian Gulf began, exports have been halted and helium prices have doubled, creating a supply-side crisis similar to the global oil crisis.

Currently, helium-exposed equities are trading with a high negative correlation (0.80) to oil (USO), indicating that war risk is the primary driver of returns.

While the S&P 500 maintained a consistent correlation to oil throughout March and April, helium-related stocks saw their correlations spike higher in April relative to the elevated values in March. This means it took the market a while to understand there was this helium problem for these stocks.

These individual equities are now more correlated to oil than the S&P—a surprising divergence given that stocks are typically more volatile and less correlated than indices.

Western Digital (WDC) & Micron (MU): WDC manufactures storage solutions and MU produces semiconductor chips; both require helium for high-precision manufacturing. WDC is currently the most correlated to oil (0.90).

GE HealthCare (GEHC) & Philips (PHIA NA): Both companies are essential producers of MRI machines, which utilize helium for magnet cooling. Both stocks have declined more than 10% since the conflict began.

Heico (HEI): An aerospace leader that integrates helium into multiple product lines Philips): In March, the stock fell 13% while short interest surged 39%. In April, the stock and short interest both rose slightly, continuing the momentum trend.

GE HealthCare (GEHC): March saw the stock drop 13% with short interest up 16%. In April, the stock rebounded 5% as short interest fell 9%, following the price action.

Western Digital (WDC): WDC fell 3% in March as short interest dropped 11% (early covering). However, in April, the stock surged 28%. This rally, occurring despite the supply disruption, has pushed WDC’s short squeeze score to 85. So at the same time the stock is correlated to oil and having a large rally for its own reasons.

So Phllips and GE Health, in the same industry show momentum shorting on the way down and covering on the way up. WDC has a mixed pattern but overall, now is in squeeze territory.

As long as USO and oil volatility move the market, these stocks will remain tethered to the supply disruptions in the Persian Gulf.

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