What exactly changed with the India STT hike?

Budget 2026 raised the Securities Transaction Tax on derivatives. Equity futures rise to 0.05% from 0.02% per trade, and options are set at 0.15%. The higher levy lifts round-trip costs for hedgers and market makers, which can reduce trading volumes and make price moves choppier during busy market periods.

Why did the Sensex fall after the announcement?

The higher cost of trading derivatives can reduce liquidity and hedging, which weakens risk appetite. That sparked a quick selloff and a sharp market value drop. Investors also weighed budget priorities. Together, these factors caused a fast, broad retreat as traders trimmed exposure and reassessed near-term positioning.

How could this affect UK investors holding India funds or ETFs?

Funds may face higher implicit costs when trading or hedging in India, which can widen tracking differences and dealing spreads near volatile periods. STT is paid within the fund’s Indian transactions, not by you directly. Monitor factsheets, liquidity metrics, and dealing notices for any changes to execution or risk controls.

What should investors watch in the next few sessions?

Track derivatives volumes, futures basis, and option implied volatility for signs of stabilising liquidity. Check fund tracking differences and spreads. Macro cues like global risk tone and the rupee also matter. If volumes hold up and earnings stay solid, the short-term shock may fade without lasting damage to allocations.

Global Market Insights

India STT Hike, February 01: Sensex Tumbles as Derivatives Tax Rises

ByDanny Kontos February 1, 2026February 1, 2026

India STT hike is front and centre after Budget 2026 raised the derivatives trading tax on futures to 0.05% and options to 0.15%. The shift sparked a Sensex crash of nearly 2% and erased about Rs 10 lakh crore in market value as traders priced higher costs and thinner liquidity. For GB investors holding India funds or EM trackers, the Budget 2026 market reaction is a real risk event. We break down what changed, why it matters for pricing and flows, and how to adjust exposure in the coming sessions.