In the Wyckoff method a sign of strength (SOS) is a sharp advance on rising volume that shows demand taking control after accumulation. This screen lists stocks on the London Stock Exchange whose 21-day range was at least 15% tighter than the 68-day range within the last 10 days, and which today close above yesterday's high with a wide up candle, at least 1.5 times average volume and positive Chaikin Money Flow. LSE prices are quoted in pence, and the list skips thinly traded shares.
