Extra Space Storage: Bollinger Bands Expand Upward, KDJ Golden Cross on 15min Chart.

Based on the technical analysis of Extra Space Storage's 15-minute chart, there are several indicators that suggest a positive market trend. Specifically, the Bollinger Bands are expanding upward, which indicates that the volatility of the stock price is increasing, and the KDJ (Keltner's Directional Index) has recently crossed over from a downward trend to an upward trend, known as a "Golden Cross." This crossover typically signifies a shift in momentum, with buyers driving the market trend and the stock price likely to continue increasing in value.