India’s $5.4 trillion equity market is bouncing back to life, creating a sweet spot for exchanges and brokerages as stronger trading activity brightens their earnings outlook.

Market watchers, including Sky Links Capital Group and BofA Global Research, anticipate growth potential in capital-market stocks, driven by recent momentum from the rebound and fundamental strengths.

“The rally in capital market stocks could have further room to run as recovering trading activity adds to the sector’s structural growth drivers,” said Daniel Takieddine, co-founder and CEO of Sky Links Capital Group.

Derivatives trading is picking up as volatility returns to Indian equities. The NSE India Volatility Index has surged about 60% from its September low. Average daily notional turnover on the National Stock Exchange of India Ltd. climbed to a four-month high in October, while volumes at smaller rival BSE Ltd. jumped about 50%.

Sentiment has also improved following a partial rollback of the closing-auction framework. While the changes take effect only from Dec. 7, activity began recovering as it became increasingly clear regulators would revert to the previous methodology for settling expiring derivatives contracts. Volumes had fallen following the auction’s introduction.

The combination leaves exchanges and brokers with a substantially improved operating backdrop: recovering equities encourage participation, while higher volatility tends to generate more trading and derivatives volumes.

But any potential tweaking of futures-and-options rules by the regulator to protect retail investors is a near-term challenge, said Amish Shah, BofA Global Research’s India head.

“If and when that risk is out of the way, we think this is a sector with structural growth potential,” he said. “Structurally, we like the space.”

The growth potential was underscored recently by the blockbuster listing of National Stock Exchange of India. Shares of the country’s top bourse, seen as a proxy for the capital-markets theme, have gained more than 11% since their debut in September.