On Thursday, the Bank stunned the markets by keeping interest rates on hold, following speculation that it would cut rates from 0.5% to 0.25%.
By lunchtime on Friday, the FTSE 100 was down 19.66 points at 6,634.81.
The pound was up 0.27% against the dollar at $1.3379. Against the euro, it was unmoved at â‚¬1.2006.
Among individual shares, airlines bore the brunt in the wake of Thursday night's Bastille Day attack in the French resort of Nice.
Easyjet and British Airways owner IAG were down 3.5% and 1.8% respectively.
At the same time, High Street mainstays Morrisons and Marks and Spencer fell 2.2% and 2% respectively.
Other European share indexes were also down, reflecting market gloom at the French terror attack.
The Cac index in Paris was down by about 0.8%, while Frankfurt's Dax also dropped about 0.8%.
UK shares have dipped further, while the pound is steady, as investors continue to digest the Bank of England's latest pronouncement.