"Key insights for Tuesday's stock market opening"

The stock market took a pause from its end-of-year rally, with small-cap stocks outperforming while the Nasdaq dropped as investors sold Big Tech shares. Bitcoin reached a 19-month high, surpassing $41,000, and gold reached its highest nominal intraday level ever. GitLab's stock jumped 14% after the company released impressive third-quarter results, marking its first adjusted operating profit since going public. Twilio announced layoffs affecting about 5% of its workforce, primarily in its Data and Applications unit. Moody's downgraded China's government credit ratings outlook to negative due to rising debt risks and lower medium-term economic growth. Nokia shares plunged after losing a major deal with AT&T, which instead partnered with Ericsson on a $14 billion project.