Nasdaq-100 futures are down significantly in pre-market trading, indicating a tech-led selloff to start the session. The primary driver appears to be the market's digestion of the latest wave of mega-cap technology earnings. Despite Meta Platforms reporting strong results and guidance, a negative reaction to Tesla's third-quarter report, with the stock falling over 3% in after-hours trading despite beating estimates, is weighing heavily on sentiment. Broader market concerns, including geopolitical tensions, are also contributing to the risk-off mood.