"There will be impacts, there’s correlations ... some market volatility, and then how it weighs in the global growth picture," said Paul Malloy, head of municipals at Vanguard.
The wild swings in the pound have ricocheted across currency markets, where volatility was already climbing.
According to the widely watched Deutsche Bank Currency Volatility Index , volatility across currencies on Wednesday hit its highest level since the March 2020 COVID-19- induced market meltdown, jumping more than 20% from levels last week.
Closely followed indicators of financial stress remain contained.
U.S. stock market volatility as measured by the "fear index," the VIX (.VIX), has also climbed in recent days but remains below its 2022 highs.