UK Stocks-Factors to watch on Oct 26

Oct 26 (Reuters) - Britain's FTSE 100 index is seen opening down 0.3 to 0.4 percent on Wednesday, according to financial bookmakers. * The UK blue chip index closed up 0.5 percent at 7,017.64 points on Tuesday, boosted by basic resources stocks, with Anglo American leading the market higher after a production update, though a slew of broker downgrades weighed on UK midcap stocks. * RBS/CYBG PLC: CYBG Plc said it made an offer to take over Royal Bank of Scotland's Williams & Glyn bu