Will LME copper spot price fall below $4.00/lb for any consecutive 5-trading-day period by September 2026?

Copper is currently trading around $5.50/lb (LME ~$12,100/tonne), well above the $4.00/lb threshold. A drop to $4.00/lb would represent a ~27% decline from current levels within 6 months. This magnitude of decline in copper is unusual outside of severe global recessions (2008, 2020). The sector analysis confirms a structural supply deficit, and even the Myth Meter's finding that AI demand acceleration is modest (2.9% vs 2.7%) doesn't suggest demand is declining — just that it's not accelerating as fast as narratives suggest. Copper fundamentals are strong: declining global inventories, permitting constraints on new supply, growing electrification demand. A 5-consecutive-day period below $4/lb requires a severe macro shock.

While a drop to $4/lb is unlikely from current levels, the 6-month window includes potential trade policy disruptions and China slowdown risk. US-China tariff escalation could temporarily crash commodity prices, as occurred in 2018-2019 when copper fell ~20% from peak. However, even the 2018-2019 trade war brought copper to approximately $2.60/tonne (still above $4/lb in USD terms at the time), and current price levels are higher. The Myth Meter noted AI copper demand is 'modestly above-trend,' not declining. The structural underinvestment thesis means any price dip would likely be temporary and met with production curtailments. Assigning 15% to account for severe tail risk scenarios (global financial crisis, China hard landing).

The math is clear: copper at ~$5.50/lb needs to fall 27% to $4.00/lb and STAY below $4.00/lb for 5 consecutive trading days. This requires not just a flash crash but a sustained macro deterioration. Global copper inventories are at multi-year lows. Even FCX's committee classified FUNDING_FRAGILITY as STABLE at any copper price above $3/lb — implying the committee views sub-$3 as implausible and sub-$4 as highly unlikely given current market conditions. The only scenarios producing this outcome are global recession, China financial crisis, or simultaneous demand collapse and supply normalization — all low probability within 6 months.

Current copper at ~$5.50/lb is far from the $4.00 threshold. The resolution requires 5 consecutive days below $4.00, not just an intraday touch. Structural supply deficit, declining inventories, and electrification demand provide fundamental support. However, macroeconomic tail risks exist: US-China trade escalation, potential recession, China property sector contagion. Assigning 15% for these severe scenarios, noting that even in 2020's pandemic crash, copper only briefly dipped below $2.10/lb before rapidly recovering.

The US trade policy uncertainty cited by the committee as 'directionally unclear' could theoretically cause a commodity price crash if severe tariff escalation triggers recession fears. But copper has proven relatively resilient in recent trade disputes due to its supply-side constraints and green energy transition demand. The $4/lb level hasn't been tested since early 2024, and the trajectory has been consistently upward on supply deficit fundamentals. Even the Myth Meter's identified narrative-reality gap is about the AI premium being overstated, not about copper demand declining.

Slightly higher estimate to account for the compounding of multiple modest risk factors over a 6-month window. Trade policy uncertainty, China economic concerns, potential Fed policy missteps, and commodity market deleveraging could combine to produce a larger decline than any single factor would suggest. The 5-consecutive-day requirement softens this somewhat but 18% captures the tail risk of multiple simultaneous negative catalysts. Copper is a cyclical commodity despite structural demand support.

Copper at ~$5.50/lb is far above the $4.00 threshold. Structural supply deficit supports prices. 27% decline requires severe macro shock. Low probability.

Even in the 2020 pandemic crash, copper recovery was rapid. Current supply fundamentals are tighter. 10% captures extreme tail risk only.

Trade policy escalation is the most plausible catalyst but even 2018-2019 trade wars didn't produce 27% copper decline from these levels. 15% accounts for unknown severe scenarios.