The quarterly changes in key equity indices on the NSE are set to be implemented on June 27. Strategic indices—Nifty 200 Momentum 30, Nifty Midcap 150 Momentum 50, and Nifty 500 Momentum 50—are set to undergo reshuffles on June 27, while broader benchmarks like Nifty 50, Nifty Next 50, Nifty Midcap 150, and Smallcap 250 will see weight adjustments, according to a report by Nuvama Alternative and Quantitative Research.