Underwhelming results from banking heavyweight HSBC offset a late rally in the mining sector on Tuesday, with UK stock markets dropping into the red by the close.The FTSE 100, which rose to a high of 7,053.18 early on, finished down 58.37 points (-0.84%) at 6,927.58. This was the index's lowest close since 2 April when it settled at 6,833.46.Analysts cited weak US trade figures as the reason behind the declines on Tuesday afternoon, as the deficit surged 43.1% to $51.4bn in March on a jump in imports. This was the highest trade gap since October 2008 and much more than the $41.7bn deficit expected by the market."In years gone by such bad news would probably have given indices a lift on expectations of fresh liquidity injections, but recent Fed policy does not seem to be unnerved by the downturn in data. The prospect of life without an activist Fed still has the capability to scare," said IG analyst Chris Beauchamp.Ongoing concerns about Greece were dampening sentiment after the European Commission slashed its growth forecasts for the country to just 0.5% this year, compared with its previous prediction of 2.5%. Political uncertainty in the UK was also weighing on investors' minds ahead of Thursday's elections, after data showed that growth in UK construction activity slowed to a 22-month low in April because of this very reason.HSBC drops on dividend worriesBanking titan HSBC beat expectations with its first-quarter results, with pre-tax profit up 4% at $7.1bn, though worries about the future of its dividend prompted the stock to decline. The bank warned that the UK banking levy would limit the potential for dividend growth and said it was looking at whether to move its headquarters back to Hong Kong from London.Sector peers Lloyds and RBS, which were performing well after broker upgrades on Tuesday morning, fell into the red by the close. Jefferies raised Lloyds to 'buy', saying that the earnings downgrade cycle has troughed for the bank, while Nomura lifted RBS to 'neutral' following the stock's recent underperformance.In contrast, mining stocks turned around to finish in the green after erasing earlier losses, including Anglo American, Rio Tinto and BHP Billiton. Even Glencore managed to climb despite reporting a slow start to the year with its first-quarter production results.Asset manager Aberdeen disappointed with a 25% profit jump in the second quarter as it reported a £11.3bn outflow of net new business.On the FTSE 250, Indivior topped the risers despite pre-tax profit dipping in the first quarter, as its RBP-7000 schizophrenia drug met the primary and secondary endpoints in its phase 3 trial. Market MoverstechMARK 3,173.58 -0.60%FTSE 100 6,927.58 -0.84%FTSE 250 17,452.07 -0.09%FTSE 100 - RisersCoca-Cola HBC AG (CDI) (CCH) 1,417.00p +2.98%Fresnillo (FRES) 730.50p +2.60%Dixons Carphone (DC.) 425.90p +1.87%Royal Dutch Shell 'A' (RDSA) 2,091.50p +1.53%Sage Group (SGE) 496.50p +1.53%Smiths Group (SMIN) 1,151.00p +1.50%BP (BP.) 474.95p +1.36%Sainsbury (J) (SBRY) 275.00p +1.21%Royal Dutch Shell 'B' (RDSB) 2,120.00p +1.05%BG Group (BG.) 1,197.00p +0.84%FTSE 100 - FallersInternational Consolidated Airlines Group SA (CDI) (IAG) 537.00p -3.68%Imperial Tobacco Group (IMT) 3,120.00p -3.38%Whitbread (WTB) 5,050.00p -3.26%HSBC Holdings (HSBA) 625.90p -3.16%Shire Plc (SHP) 5,205.00p -2.80%Aberdeen Asset Management (ADN) 450.60p -2.70%British American Tobacco (BATS) 3,547.50p -2.54%Smith & Nephew (SN.) 1,114.00p -2.54%Pearson (PSON) 1,304.00p -2.47%Reed Elsevier (REL) 1,081.00p -2.44%FTSE 250 - RisersIndivior (INDV) 220.40p +8.52%Hunting (HTG) 607.50p +4.74%Kaz Minerals (KAZ) 269.60p +4.70%Enterprise Inns (ETI) 123.40p +4.67%Lonmin (LMI) 150.80p +4.22%Just Eat (JE.) 473.60p +3.86%AL Noor Hospitals Group (ANH) 902.00p +3.68%Ladbrokes (LAD) 105.40p +3.43%Countrywide (CWD) 527.50p +3.13%JD Sports Fashion (JD.) 588.00p +2.89%FTSE 250 - FallersMan Group (EMG) 183.50p -5.51%Lancashire Holdings Limited (LRE) 607.50p -3.49%Hiscox Limited (CDI) (HSX) 800.00p -3.09%Howden Joinery Group (HWDN) 456.00p -3.08%Crest Nicholson Holdings (CRST) 434.70p -3.01%Brown (N.) Group (BWNG) 335.00p -2.87%Wetherspoon (J.D.) (JDW) 736.00p -2.65%Bellway (BWY) 1,927.00p -2.13%Restaurant Group (RTN) 670.50p -2.12%Jupiter Fund Management (JUP) 423.70p -2.06%