The small cap segment of the market has been the best performer today, with the BSE Smallcap index up by 0.7%. This is in contrast to the overall market trend, where the benchmark indices have been trading in the red. Rallis India has emerged as the top performer in this segment, with a return of 13.17%. On the other hand, Vimta Labs has been the worst performer, with a return of -5.24%. The advance decline ratio in this small cap segment is also positive, with 568 stocks advancing and 372 stocks declining. This translates to a ratio of 1.53x, indicating a bullish sentiment in the market. In terms of stock upgrades, Chambal Fertilizers, TTK Healthcare, Ganesh Housing, Akzo Nobel, and Jagran Prakashan have all been upgraded from a "Hold" to a "Buy" rating. This suggests that these stocks have strong potential for growth and investors may consider buying them. On the technical front, Aarti Pharma, HP Adhesives, Supriya Lifesci., Sapphire Foods, and G R Infraproject have all seen a change in their technical call. Aarti Pharma and HP Adhesives have moved from a "None" to a "Mildly Bullish" rating, while Supriya Lifesci. has moved from a "None" to a "Bullish" rating. Sapphire Foods has seen an upgrade from "Mildly Bullish" to "Bullish", while G R Infraproject has moved from "None" to "Mildly Bullish". These changes in technical calls indicate positive momentum for these stocks and investors may want to keep an eye on them. Overall, the small cap segment seems to be driving the market today, with positive returns and upgrades in stock ratings. This could be attributed to the overall bullish sentiment in the market and investors may want to consider adding small cap stocks to their portfolio for potential growth opportunities.