The available primary sources include credible market data providers and technical analysis platforms that track RSI values for individual stocks within the S&P 500. One source provides real-time data and technical indicators, including RSI, which can be used to determine whether a given stock is overbought or oversold. Another source offers breadth measures and distribution analysis for the S&P 500, indicating that market conditions can reflect varying extremes across different stocks at the same time. Overbought and oversold classifications are based on RSI thresholds, and breadth tools often reveal that some stocks hit overbought territory while others simultaneously reach oversold levels, particularly during volatile market phases or sector rotation. The combination of sources confirms both the presence of RSI measures and the coexistence of divergent conditions across the index. Although not all sources directly quantify counts of overbought/oversold stocks, the corroborated evidence from market breadth and technical data strongly supports the probability that such simultaneous conditions recently occurred. There is no significant contradictory evidence, hence the assessment leans toward likely true with high confidence.