Last Friday, GDXU jumped 5.51%. So, what drove this sharp move? 1.Gold itself resumed its rally. On August 14, spot gold rose about 0.7% to around $4,380 per ounce, while gold futures gained roughly 0.4%. This means the move was not unique to GDXU. It followed the normal transmission mechanism: Gold → Gold miners → 3x leveraged GDXU 2.A weaker US dollar was one of the most direct catalysts. The US Dollar Index fell about 0.28% to 99.65. US retail sales unexpectedly declined, while inflation data did not show renewed acceleration, prompting markets to reduce expectations for a September Fed rate hike. A weaker dollar is generally supportive for dollar-denominated gold. 3.Markets lowered the probability of a September Fed rate hike. Market-implied odds of a September rate increase fell from