FTSE 100 movers: Insurers under the weather

Analysts at Digital Look have attributed the share price weakness of insurers Admiral and Old Mutual to the Icelandic volcano, which could cause disruption to travellers across western Europe on reports of a drifting ash cloud.Airline International Consolidated Airlines is also flying lower.Also weighing on the blue-chip index today is the ongoing eurozone crisis, with the spotlight turning to Italy, with Standard & Poors changing its stance on the nation to 'negative', from 'stable'.The situation has dampened copper prices, and also the demand for South American copper miner Antofagasta.Oil prices are also on the decline, hurting oil services group John Wood Group, which has fallen nearly 6%. Meanwhile, ICAP is helped higher after Credit Suisse upgraded the interdealer broker from 'underperform' to 'outperform', saying that the group is "attractively postioned over the long-term" with the recent share price weakness providing a good entry point. ---BCFTSE 100 - RisersCapita Group (CPI) 718.50p +1.05%Next (NXT) 2,238.00p +0.54%Serco Group (SRP) 553.00p +0.45%ICAP (IAP) 469.30p +0.41%Marks & Spencer Group (MKS) 399.20p +0.10%Randgold Resources Ltd. (RRS) 4,759.00p +0.08%FTSE 100 - FallersJohn Wood Group (WG.) 625.50p -5.51%Admiral Group (ADM) 1,639.00p -4.26%Man Group (EMG) 239.30p -4.05%International Consolidated Airlines Group SA (IAG) 238.20p -3.80%Old Mutual (OML) 125.70p -3.60%Anglo American (AAL) 2,848.50p -3.49%Essar Energy (ESSR) 420.80p -3.18%ARM Holdings (ARM) 554.00p -3.15%Antofagasta (ANTO) 1,171.00p -2.98%Schroders (Non-Voting) (SDRC) 1,313.00p -2.96%