New Delhi, Aug. 18 -- Indian markets gained nearly 1 per cent on August 18, buoyed by S&P's upgrade of India's sovereign credit rating, GST reform momentum, and easing global tariff concerns. US President Donald Trump's hints at reconsideration of secondary tariffs on India, coupled with positive international cues, also aided sentiment.

The uptick comes after a volatile few months. While August has seen a rebound of over half a per cent following July's near 3 per cent decline, Indian equities are up just above 5 per cent in 2025 year-to-date, and barely 1 per cent in the last one year.

However, analysts caution that global risks remain, and expect volatility to persist through 2025. Concerns over tariffs, elevated valuations, and unev...