Feb 3 : Wall Street's main indexes rose on Tuesday as Palantir's results aided optimism around the AI trade, while investors geared up for a flood of corporate results through the week. Palantir Technologies jumped 8.6 per cent after upbeat results highlighted demand for its military-grade AI tools, with U.S. defense spending helping lift quarterly sales. Teradyne rose 7.8 per cent after the chip-testing equipment maker issued a strong first-quarter forecast, riding a separate wave of AI-linked