A big company called ResMed, which makes machines to help people sleep better, had a bad day because some news about their product came out. Another person who helps decide if the stock is good or not said they don't think it's so good anymore. So, the price of ResMed went down and other companies like Coinbase Global and Nvidia also did not do well today. Read from source...

- The title is misleading and sensationalized, implying that all big stocks are moving lower on Monday, which is not true according to the Dow Jones index gaining around 300 points. A more accurate title would be "Mixed Performance For Big Stocks On Monday".
- The article jumps into the ResMed story without providing any context or background information about the company and its sleep apnea data from Lilly, making it difficult for readers to understand the significance and impact of the news.
- The article quotes only one analyst, Mathieu Chevrier from Citigroup, who downgraded ResMed from Buy to Neutral, without mentioning any other opinions or perspectives from other sources or experts in the field, creating a one-sided and potentially biased view of the situation.
- The article uses vague and ambiguous language such as "fell sharply" and "downgraded", which do not convey precise information about the magnitude and direction of ResMed's stock price movement and Chevrier's rating change, respectively. A more clear and concise way to express these facts would be "ResMed's stock dropped by 8% following sleep apnea data from Lilly" and "Chevrier lowered his rating for ResMed from Buy to Neutral".
- The article does not provide any analysis or explanation of why the sleep apnea data from Lilly affected ResMed's stock price negatively, nor does it mention how other factors such as market sentiment, sector performance, or global events could have influenced the stock movement. This leaves readers with unanswered questions and a lack of understanding of the underlying causes and dynamics of the situation.
- The article ends abruptly without any conclusion or summary of the main points, leaving readers unsatisfied and confused about the purpose and message of the article. A better way to end the article would be by summarizing the key takeaways from the stock market activity on Monday and providing some insights into what could happen next.

1. ResMed Inc (NYSE: RMD) - Sell, high risk of losing value due to negative sleep apnea data from Lilly and analyst downgrade from Buy to Neutral by Citigroup. The company faces competition from other players in the sleep apnea devices market, such as Philips Respironics and Fisher & Paykel Healthcare.
2. Coinbase Global Inc (NASDAQ: COIN) - Sell, high risk of losing value due to regulatory uncertainty, security breaches, and increasing competition from other crypto platforms, such as Binance and FTX. The company also reported a $1.1 billion impairment charge related to its investments in crypto assets during the first quarter of 2024.
3. Nvidia Corporation (NASDAQ: NVDA) - Sell, high risk of losing value due to inventory build-up, lower demand for gaming chips, and increased competition from Advanced Micro Devices Inc (NASDAQ: AMD) in the data center market. The company also faces legal challenges from Intel Corporation (NASDAQ: INTC) over alleged patent infringement.