AHMEDABAD: Last Diwali to this Diwali, investors have laughed all the way to bourses with Sensex giving a whopping 92 per cent return to investors on Dalal Street. This is the highest jump in the last six years since the markets started galloping in 2003. Amid global uncertainty and doom, the benchmark Sensex has rallied from 9008 points to 17322 points on October 16, posting over 92 per cent rise on a day before Diwali celebration this year. With rising optimism about speedy recovery in global markets and liquidity flowing into emerging markets, Indian stocks have lifted overall investment sentiment in the country, said Siddtharth Bhamre, an analyst with Angel Broking. Not only has Sensex given 92 per cent return, many front-line stocks have given more than 100 per cent return with FIIs and other investors lapping up stocks whose valuation reached mouth-watering levels at Diwali time last year, he added. Last year���s Diwali was the darkest festival of lights, as the market plummeted more than 55 per cent from a level of 19058 points to 8509 points due to global financial crisis, huge redemption from FIIs and lack of any positive development locally. With FII pumping in more than Rs 65,000 crore liquidity since last Diwali, majority of market pundits have now turned ���cautious��� and express doubts about sustainability of the rally post-Diwali. ���Valuations are now stretched,��� is a common refrain. However, post-Diwali returns in five preceding years clearly suggest that markets move in positive territory at least for one month after Diwali. One month from Diwali, markets have given positive return of 1 per cent to 10 per cent in recent years. ���History is on the side of the bulls, but much will depend upon how the corporate results play out in the last week of October,��� said VK Sharma, research head, Anagram Securities.