UK Stocks-Factors to watch on Feb 20

Feb 20 (Reuters) - Britain's FTSE 100 index is seen to open 8 points higher at 7,256.1 on Tuesday, according to financial bookmakers. * HSBC HOLDINGS: HSBC Holdings' 2017 pre-tax profit rose 142 percent as the lender avoided the multi-billion dollar restructuring costs that marred its 2016 results but the profit growth lagged expectations as it took a writedown following U.S. tax changes. * CARILLION: Britain's pensions regulator twice ignored requests from trustees of collapse