Today's Morning Movers and Top Ratings: AAPL, NVDA, TSLA, MRNA and More

$BioNTech (BNTX.US)$ shares fell 3.2% after the company's second-quarter earnings came in below expectations, with COVID-19 vaccine sales continuing to decline.

$Apple (AAPL.US)$ stock dropped 7.1% following news that Warren Buffett's Berkshire Hathaway sold almost half of its position in the company as part of a wider stock selloff.

$NVIDIA (NVDA.US)$ shares decreased by 12% on reports that the launch of the company's anticipated artificial-intelligence chips is delayed due to design issues.

$Intel (INTC.US)$ shares continued their downward trend, falling 5.6% after a significant earnings miss for the June quarter and an announcement of layoffs affecting more than 15% of its workforce.

$Tesla (TSLA.US)$ 's stock declined by 9.1%, joining the broader tech sector downturn, despite a 15.3% year-over-year increase in sales of its China-made electric vehicles.

$Coinbase (COIN.US)$ shares took a 15.6% hit as the cryptocurrency exchange felt the impact of broader selling in the sector and a significant drop in bitcoin value.

$CrowdStrike (CRWD.US)$ 's stock decreased by 7.1% even though the cybersecurity firm denied any responsibility for the massive outage at Delta Air Lines that led to thousands of flight cancellations in July.

$Moderna (MRNA.US)$ stock went down by 5.4% after RBC Capital Markets downgraded the company to "Sector Perform" from "Outperform," pointing to increasing obstacles in the RSV and COVID vaccine markets.