After the Bank of England stated a report suggesting it is likely to defer the sale of government bonds until the market has calmed was "inaccurate," equities in Europe gave up the majority of their fourth day of gains.
The pound and UK gilts both declined.
After the S&P 500 closed above a crucial technical support level on Monday, US equities futures were still up 1%.
Major technology and internet companies rose on Tuesday in New York premarket trade, driven by Amazon.com Inc. and Microsoft Corp.
The pound fell by 0.7% after the BOE disputed a Financial Times claim that the central bank was delaying the start of its quantitative tightening, according to a Bloomberg measure of the greenback.
The UK 10-year bond's yield increased by 10 basis points to 4.08%. Treasury yields increased a little.