Indiabulls Housing Finance stock is under the F&O ban for trade, but will still be available in the cash market. The ban is put in place when the open interest on a stock exceeds 95% of the market-wide positions limit, and is lifted when it falls below 80%. Indiabulls Housing's open interest stood at 86.6% on Monday. Indian headline indices, including the S&P BSE Sensex and Nifty50, reached all-time highs on Monday. Analysts expect the upward trend to continue, but warn of potential volatility.