NTPC Green Energy Ltd. is approaching November 26, the expiry date for its six-month shareholder lock-in period. This event will make 580.6 crore shares, representing 69% of the company's outstanding equity, eligible for trading. While not all shares will be sold immediately, the increased supply could impact the stock, which is already trading below its IPO price and down from its listing high, despite strong Q2 financial results showing a 131.6% rise in net profit.