- Photo: MarketWatch photo illustration/iStockphoto Gold investors understandably don’t believe there’s any mystery about why gold GC00 has soared in the past year. They offer no shortage of theories to explain gold’s price rise. But I know of no theory that has a statistically significant record of predicting gold prices. So why gold did so well in 2025 can’t really be explained. A mystery, in other words. Most Read from MarketWatch This mystery should worry the gold bulls. Without a compelling stati ...