Indiabulls Housing Finance Company and Delta Corp have been placed under a trade ban on 25 May due to the open interest on their stocks exceeding 95% of market-wide position limits (MWPL) for Future & Options contracts. The ban will only be lifted when the open interest falls below 80%. Traders in indices will not be affected. The MWPL for Indiabulls Housing stood at 81.1% on Wednesday while Deltas MWPL stood at 92.8%. The broader Nifty50 index settled at 18,285.40, lower by 62.60 points or 0.34%.