Economic Growth: A strong Indonesian economy typically boosts corporate earnings, driving up stock prices. Conversely, a slowdown can negatively affect investor sentiment.

Interest Rates: Higher interest rates can make borrowing more expensive for companies, potentially reducing profits and stock valuations. Lower rates can stimulate investment and stock growth.

Inflation: High inflation erodes purchasing power and can lead to increased costs for businesses, negatively impacting stock prices. Deflation can also signal economic weakness.

Government Policies: Government regulations, tax policies, and infrastructure spending can all significantly influence the profitability of listed companies and therefore the stock market.

Global Events: International events, such as global recessions, geopolitical tensions, and changes in commodity prices, can impact Indonesia's economy and its stock market.

Company Performance: Individual company earnings, revenue growth, and future prospects are key drivers of their stock prices within the NASI.JK index.

Investor Sentiment: Market psychology, including fear and greed, can create short-term volatility in stock prices, irrespective of fundamental factors.

Currency Fluctuations: The value of the Indonesian Rupiah (IDR) against other currencies impacts the profitability of export-oriented companies and foreign investment flows, affecting stock prices.