The Indian stock market is set to begin the week on a positive note on August 18, as improving global sentiment, domestic reform announcements and technical resilience offer support to equities. The optimism comes after Prime Minister Narendra Modi's Independence Day address, where he announced significant upcoming reforms to the Goods and Services Tax (GST) regime, including potential rate reductions ahead of Diwali.
Stock Market Outlook for 18 August
Market participants are hopeful that these "big bang" reforms will boost consumption and improve business compliance, thereby providing a meaningful trigger for equities.

The benchmark indices, Sensex and Nifty, ended last week higher by over 1%, snapping a six-week losing streak. The Nifty 50 reclaimed the 24,600 level, closing at 24,631.30 on Thursday. The session remained relatively muted due to the long weekend and a national holiday on Friday, August 15 (Independence Day).
Many traders chose to book profits or reduce positions ahead of the break, leading to a tight trading range of just 76 points on Thursday.
Sensex, Nifty Prediction Today
Adding to the positive momentum is the recent upgrade of India's sovereign rating by S&P Global, from BBB to BBB, with a stable outlook. This development has reinforced foreign investor confidence in India's macroeconomic fundamentals, despite recent outflows. Analysts believe that the combination of long-term reforms and improving global cues could help Indian indices shake off recent bearishness.
Nifty 50 May Test 25,000 if Bullish Momentum Holds
"Nifty trend is looking positive , it has a strong support at 24300 and than 240000 levels. Buy on dips suggested in the nifty. Strong resistance at 24800 and than 25200 levels," said Anuj Gupta from HDFC Securities.
Despite the subdued close, technical indicators suggest strength in the near term. The Nifty has been holding above its 100-day EMA for the past two sessions, indicating strong underlying support. According to analysts, key support lies at 24,400, with stronger support seen at 24,000, where the highest Put open interest has been accumulated.
On the upside, a decisive breakout above 24,800 could open the door for a rally towards the psychological 25,000 mark, which currently holds the maximum Call open interest, making it a critical resistance level.
Options data for August 18 points to a tug-of-war between bulls and bears at higher levels. The 25,000 strike has the highest Call open interest (48.85 lakh contracts), indicating significant resistance. However, aggressive Call writing at this level with an addition of over 23 lakh contracts also suggests traders are positioning for limited upside. On the other hand, the 24,000 strike has the maximum Put open interest (37.22 lakh contracts), establishing it as a key support. Put writing activity at the 24,000, 24,500, and 24,600 levels further supports the bullish sentiment.
Broader cues from global markets will also influence sentiment this week. The upcoming Trump-Putin meeting in Alaska, US Federal Reserve minutes and updates on trade tariffs will be closely tracked by investors. Any signs of easing geopolitical tension or dovish commentary from the Fed could further strengthen Indian equities.
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