Dow Jones futures edged lower after hours on Monday, along with S&P 500 futures and Nasdaq futures, as investors braced for a potential slowdown in the semiconductor sector due to export restrictions on Nvidia. The bond market turmoil and the upcoming TikTok hearing also weighed on market sentiment.

Nvidia's stock price has been under pressure since the Biden administration announced further export restrictions on advanced technologies to China. The restrictions, which were largely telegraphed in advance, are not as severe as initially feared but still have the potential to limit Nvidia's ability to sell its products in China. This could lead to a decline in revenue and profitability for the company, which could in turn impact its stock price.

The bond market turmoil, driven by global trends and US political events, has the potential to impact the stock market in several ways. Rising bond yields make bonds more attractive compared to stocks, which could lead to a rotation of funds from equities to bonds. This could result in a decrease in stock prices, especially for sectors sensitive to interest rates, such as utilities and real estate. Higher bond yields may also indicate that investors expect higher inflation in the future, which could erode corporate earnings and lead to lower stock prices. Conversely, if inflation remains subdued, it could support stock prices.

The upcoming TikTok hearing could have significant implications for the tech sector and the broader market, given the current geopolitical tensions and the increasing scrutiny of Chinese tech companies. If the US government decides to ban TikTok or force a sale of its U.S. operations, it could lead to a significant drop in ByteDance's stock price and a sell-off in other Chinese tech stocks. This could also lead to increased competition in the short-form video space, benefiting U.S. tech companies like Meta (Facebook) and Alphabet (YouTube). However, the hearing could also reignite concerns about data privacy and national security, leading to increased scrutiny of other U.S. tech companies and potentially impacting their stock prices.

In conclusion, the potential slowdown in the semiconductor sector due to export restrictions on Nvidia, the bond market turmoil, and the upcoming TikTok hearing have all contributed to a cautious market sentiment. Investors should stay informed about the latest economic data and market developments, and be prepared to adjust their portfolios based on changing market conditions. By maintaining a diversified portfolio and actively managing risk, investors can navigate this uncertainty and make informed decisions about their investments.