(ShareCast News) - Boosted by another plunge in the pound that is expected to prop up exporters, the FTSE 250 was 1.66% higher late on Tuesday.Exporting companies that were high in the leaderboard included European-focused lender International Personal Finance, equipment rental group Aggreko, which does the majority of its business overseas, and Renishaw, which makes only a fraction of its sales from the UK.Another, Diploma, said in August that moves in currency rates were expected to add circa 4% to last year's group revenues, driven by the substantial decline in UK sterling since the Brexit decision in June 2016, so a return to 30-year lows was taken as more good news for the current period.Topping these risers, was OneSavings Bank as it was helped higher by a Barclays upgrade, which also encompassed fellow challenger bank Aldermore, both up to 'overweight' from 'equalweight'.The bank upped its price target on OneSavings to 340p from 235p, noting the shares have been sold off sharply in 2016 on fears of a strong reversal in buy-to-let volumes, Brexit and potential changes to BTL risk weightings.The stock is now down 25% year-to-date and on a price-to-earnings multiple of around 6x 2017 earnings looks particularly cheap, Barclays said.It lifted its price target for Aldermore to 200p from 150p and said it should benefit from growth in the specialist buy-to-let and SME segments where demand is underserved.Warm words from Credit Suisse and a higher target price also lifted Electrocomponents."We had previously flagged Electrocomponents as a stock where there was significant upside potential to profitability given the underperformance that had built up over time."Following the recent 'positive profit warning', analysts have increased their EPS estimates by nearly 20% and raised the price target to 330p from 270p.As the stock market enjoyed one of its biggest risk-on days for a while, this saw a decline in traditional 'safe havens' such as gold. Acacia Mining, Hochschild Mining and Centamin all saw their stock fall as a result. FTSE 250 - RisersOneSavings Bank (OSB) 286.90p 6.77%International Personal Finance (IPF) 289.00p 6.45%Brown (N.) Group (BWNG) 199.90p 5.71%Allied Minds (ALM) 353.80p 5.45%Diploma (DPLM) 955.00p 5.06%Renishaw (RSW) 2,890.00p 5.01%Aggreko (AGK) 994.00p 4.74%Ted Baker (TED) 2,587.00p 4.48%Electrocomponents (ECM) 360.40p 4.34%FirstGroup (FGP) 110.80p 4.33%FTSE 250 - FallersAcacia Mining (ACA) 476.60p -6.18%Hochschild Mining (HOC) 278.80p -4.85%Centamin (DI) (CEY) 146.60p -3.68%Henderson Group (HGG) 263.50p -2.66%NCC Group (NCC) 358.80p -2.45%Phoenix Group Holdings (DI) (PHNX) 866.00p -2.04%Ibstock (IBST) 170.20p -1.62%Kaz Minerals (KAZ) 233.10p -1.23%Telecom Plus (TEP) 1,126.00p -0.88%Shawbrook Group (SHAW) 247.10p -0.64%