Actually, the RBS share price fell by 1.3% to 342.5 pence. This is far from welcome, but it is not uncommon. As may be seen from the following graph, there have been many days over the past 12 months when the RBS share price was lower than 342.5 pence, sometimes much lower.
Much the same could be said of Lloyds, whose share price yesterday fell by 2.43% to 72,2 pence.
The point is that share prices go up and down all the time. And it is foolish to read too much into the movement on any single day, especially when that movement is within the normal bounds of variation.
Furthermore, there were plenty of non-Scottish FTSE-100 companies whose share prices yesterday fell by greater percentages than the two illustrated above.
So don't panic, Yet.
As at 08.27 (BST), the RBS share price has risen to 345 pence, while that of Lloyds has risen to 73.5 pence.