Doc logic, here's the 18 yr NWBO chart with stock splits and in log scale to fit in the price points. A clear double bottom is in view. I'll look for others and post separately. Many successful ones that have been bought out are no longer available on stock charts.
Illumina, not technically a double bottom ( inverse H & S) but massive gains since 2003 when it was pennies and where we are now in the $1+ range before it took off.