This screen lists stocks on the London Stock Exchange whose 68-day (about three months) relative strength rank is above 90: their price performance beats at least 90% of the other stocks on the same exchange. The strongest are shown first. Relative strength is a core idea of momentum investing, because leaders tend to keep leading. It is not the RSI oscillator, which measures overbought and oversold conditions. LSE prices are quoted in pence, and the list skips thinly traded shares.