Apple CEO vows after company loses over $40bn in value: 'This too shall pass'

Shares open down 7% and climb only a little throughout the day as company grapples with struggling Chinese economy, but Tim Cook voices optimism

Apple's shares opened down 7% at the start of trading on Wednesday following the company's first revenue decline in over a decade and gained back only a little as the day went on.

The shares opened at $95.98 and made small gains throughout the morning; the hit initially knocked nearly $50bn off Apple's market capitalization.