The National Stock Exchange of India recorded fluctuating closing levels for the Sensex and Nifty indices on May 21, 2026 [1].
These movements are critical for investors as they signal the overall health of the Indian economy and influence the valuation of major corporate entities. The closing hour of a trading day often reflects the final sentiment of market participants before the next session.
Market data from the day showed significant variance across different reporting outlets. Moneycontrol said the Sensex dropped 479 points on the day of the expiry [2], while the Nifty index closed below 24,000 [3]. However, other reports indicated different trajectories. The Economic Times said the Sensex had previously risen by 1,073 points on May 25 [7], and that the Nifty had been above 24,000 during that period [8].
Further volatility was noted in subsequent sessions. On May 27, the Economic Times said the Sensex was down 142 points [4] and the Nifty had fallen below 23,950 [5]. Individual stock performance also showed sharp declines, with ONGC falling five percent [6] and ITC falling three percent [7].
CNBC TV18 provided live updates during the final hour of trade to inform the public about these closing levels. The reporting highlighted the impact of expiry day volatility, which typically sees higher trading volumes and sharper price swings as derivative contracts expire.
Other reports from Moneycontrol said there were even steeper losses in later periods, citing a drop of over 1,456 points for the Sensex [9] and a Nifty close below 15,800 [10]. These figures highlight a period of intense instability for Mumbai's financial markets throughout the month.
“The Sensex dropped 479 points on the day of the expiry”
The conflicting data and sharp swings in the Sensex and Nifty indices suggest a period of high volatility in the Indian market. The divergence between daily gains and sudden drops—particularly around expiry dates—indicates that short-term speculative trading is heavily influencing price action, potentially masking long-term fundamental trends in the energy and consumer goods sectors.
