StockViz did a trial IPO returns analysis on stocks that listed between April and July 2010. Here is the 10, 30, 90 and 180 day return analysis.
At first blush, it appears that, on an average, IPOs returns were positive during the timeframe. Caveat: these returns need to be compared with Nifty levels during the same time-period to understand their relative performance (coming soon!)
Here’s a chart off the same dataset:
Stay tuned for more!