An upthrust is the mirror of a spring and a typical sign of distribution in the Wyckoff method: price pokes above resistance, triggers breakout buyers and stops, then falls back into the range. This screen lists stocks on the London Stock Exchange where a bull trap has formed on the resistance lines of the SNR indicator (fractal-based support and resistance) with volume above its 21-day average. Breakout buyers caught above resistance often add to the selling. LSE prices are quoted in pence, and the list skips thinly traded shares.