Northern Rock made the only loss on the FTSE this afternoon, falling 46.75 points, or 15.28%, to 259.25p. The stock average rose 225.3 points, or 3.62%, to 6508.6p.
A decision by the Federal Reserve to cut interest rates in the US to 4.75% has led to a strong morning on the FTSE, the index climbing 138.7 points, or 2.21%, to 6422.
In London, markets recovered as confidence in Northern Rock eased due to Government guarantees and the FTSE 100 was up 6,283.3.
In London, markets began to rise as the UK Government gave guarantees to Northern Rock's savings customers and the FTSE 100 was up 40.4 points, or 0.66%, to 6,223.2.
The FTSE fell 1.69%, or 106.6 points, today to 6182.8p.
In London, shares fell as news of Northern Rock's emergency loan continued to rock the banking sector and the FTSE 100 lost 92.7 points, or 1.47%, to 6,196.6.
The FTSE closed at 6239.7p this afternoon after falling 124.2 points, or 1.95%.
No surprises in the FTSE 100 this morning; Northern Rock is crumbling and taking the index with it.
The FTSE closed at 6363.9p this afternoon after rising 57.7 points, or 0.91%.
In London, shares dropped slightly in early trading and the FTSE 100 was down 21.2 points, or 0.33%, to 6,285.1.