Core Viewpoint - Costco Wholesale Corporation's shares experienced a nearly 3% decline following a disappointing earnings report, leading to a quiet trading day [1] Group 1: Stock Performance and Support Levels - Traders are observing potential reversal patterns as Costco's stock approaches the $885 support level, which previously held in March and April [1][4] - Historical support levels often attract buyers due to seller's remorse, as those who sold at these levels may wish to repurchase after seeing the stock rally [3] Group 2: Market Sentiment and Oversold Conditions - The stock is currently considered oversold, trading below its typical range, which may entice buyers expecting a reversal and could create upward pressure on the shares [5] - Successful traders typically wait for signs of reversal rather than attempting to catch the exact bottom, aiming for a better risk-reward ratio [6][7] Group 3: Technical Indicators - The Moving Average Convergence Divergence (MACD) indicator is used to assess oversold conditions; a crossover of the blue line above the red line may signal the start of a reversal [7]