A turbulent week across technology markets ended with starkly contrasting fortunes for digital payments pioneer PayPal and cybersecurity leader CrowdStrike.

PayPal anchored the Nasdaq's weekly losers after talks surrounding a major transaction collapsed, triggering widespread investor sell-offs amid renewed uncertainty over growth prospects.

Meanwhile, CrowdStrike spearheaded market gainers, surging on the back of blockbuster quarterly financial results and resilient demand for enterprise security solutions.