I don't doubt that it could be done on CER. The SP doesnt have to be multiplied by 140 to get there. With the volatility in the SP and trading around the 10c mark with variations as much as 10% during most weeks it could be done without the SP even getting to 20c. The odds are against it if the price continues to climb (as I suggest it will) because there will be a loss each time the trader has to buy back in at a higher price than the last sold price. CER is NOT a spec stock. I hold some spec stocks that I believe could deliver those sort of returns but the gain in one could be offset with a loss in a few others.
CER Price at posting:
9.5¢ Sentiment: LT Buy Disclosure: Held