$IQEPF — IQE PLC: The UK Epitaxial Wafer Supplier That 10x’d in Four Months
IQE PLC, a struggling UK semiconductor firm with a market value of less than $70M at the start of 2026, soared more than 10 times in just four months as photonics demand re-rated the entire substrate layer. IQE is one of Lumentum’s key suppliers for Indium Phosphide (InP) — the material used to make high-performance data center lasers that silicon cannot generate on its own. Highest volatility on this list. Trades OTC in the U.S. as $IQEPF. If you want the rawest exposure to the InP chokepoint, this is it — with all the execution risk that comes with a company undergoing a strategic review.
