All this market volatility is proving good news for Icap, the world's biggest interdealer broker.
In a trading statement it said the higher level of activity in the market - ie the recent gyrations - meant its full year profits would top analysts' expectations of £307m. The news has pushed its shares up 68p to 652p, making it the biggest riser in the FTSE 100.
With Wall Street opening higher - just - the leading index is still holding onto its gains. At the moment it is up 233.9 points at 5843.2. News that the number of US workers applying for jobless benefits was at its lowest level for fourth months has also helped sentiment. The SocGen effect, so far, appears to have done little damage.
Banks and miners are boosting the UK index, with just a couple of fallers notably Carphone Warehouse, down 7p at 285p as Goldman Sachs placed 12m shares at 275p each.
