In her first post-Budget interview, Finance Minister Nirmala Sitharaman clarified the rationale behind the government’s decision to raise Securities Transaction Tax (STT) on futures and options (F&O), stating that the move is designed as a deterrent to speculative trading rather than an attempt to mobilise additional tax revenue.

The clarification comes amid debate in market circles over whether the higher STT could affect overall trading volumes and liquidity in India’s derivatives segment, which is among the most active globally in terms of retail participation.

The changes announced in the Budget on February 1 include an increase in STT on futures contracts to 0.05% from 0.02%. For options, the STT on premium has been raised to 0.15% from 0.1%, while STT on exercise of options has been increased to 0.15% from 0.125%.

According to the finance minister, the decision was informed by data and behavioural concerns rather than valuation debates around Indian equities. She noted that the government is not entering the discussion on whether Indian markets are overpriced. Instead, the focus is limited to a specific segment where speculative activity is concentrated.

Importantly, she underlined that the cash equity market has not been touched by the measure, signalling that the government’s intent is not to dampen long-term investment activity or genuine market participation. The intervention is narrowly targeted at derivatives trading, where rapid turnover and leverage often magnify losses for uninformed participants.

The minister also referred to communication received by the Ministry of Finance from parents who had raised concerns about continued losses faced by retail traders. This anecdotal evidence aligns with findings from a report by the Securities and Exchange Board of India, which showed that nearly 90% of F&O traders incurred losses, largely attributed to market illiteracy. More strikingly, over 75% of these loss-making participants continued trading for two consecutive years despite sustained losses.

This data appears to have played a central role in shaping the policy response. Rather than imposing trading restrictions, the government has chosen a pricing signal through taxation to make high-frequency speculative trading less attractive.

The finance minister also indicated that the market regulator would continue to play its part, suggesting that the tax measure is one part of a broader framework that includes regulatory oversight and investor awareness.

From a policy perspective, the move reflects a shift towards behavioural regulation in financial markets. By increasing the transaction cost specifically in derivatives, the government appears to be attempting to discourage impulsive and leverage-driven participation without interfering with capital formation in the equity market.

For market participants, the change is likely to alter cost calculations, particularly for high-turnover strategies such as intraday and short-term options trading. Proprietary desks, algorithmic traders, and active retail participants in the F&O segment will need to recalibrate strategies to account for higher frictional costs.