BSE Shares Jump 4.6% as a Rule Reversal Brings Derivatives Traders Back — Motilal Oswal Sets ₹4,000 Target

BSE shares surged 4.59% on Monday, October 26, 2026 after brokerage Motilal Oswal upgraded the stock to Buy with a target price of ₹4,000, pointing to a sharp recovery in derivatives trading volumes and a partial regulatory reversal that takes effect on December 7. The stock hit an intraday high of ₹3,379.30 on the NSE and was trading at ₹3,370.50 at 12:21 pm, making BSE one of the Nifty 50's top gainers on a day when the broader market was largely flat.

What happened

Motilal Oswal's report, dated October 24, upgraded BSE — the company that operates the Bombay Stock Exchange — to Buy. At around ₹3,370, the ₹4,000 target implies roughly 23% upside, according to coverage of the report. The upgrade rests on three legs: derivatives volumes are recovering fast, regulator SEBI has partially reversed a settlement framework that had crushed trading activity in August, and BSE may pick up cash-market activity around the planned listing of its larger rival, the National Stock Exchange (NSE).

BSE was the second-biggest Nifty 50 gainer by midday, up 4.41% in the index snapshot behind only Dr Reddy's Laboratories, even as the Sensex hovered near 73,154 and the Nifty 50 near 22,597 — a reminder that Monday's action was stock-specific, not a broad rally.

Why it's blowing up: the August slump and the October snap-back

The story starts with a slump. Stricter lending norms for proprietary traders arrived in July 2026, and the Closing Auction Session (CAS) framework followed in August. Together they hit BSE's futures and options (F&O) business hard: average daily traded turnover fell sharply in August — Motilal Oswal put the month-on-month decline at about 34-35% versus the April-July average.

Then came the snap-back. September volumes rose about 6% month-on-month, and October accelerated as volatile markets pulled traders back in. Motilal Oswal said BSE's F&O notional average daily traded turnover surged 85% in October month-to-date compared with the post-CAS August reset. The brokerage expects BSE's FY27 average daily turnover to reach ₹216 trillion, up 16% year-on-year, with further upside if the recovery holds.

The regulatory catalyst lands on December 7, 2026, when SEBI's partial reversal of the CAS changes restores the last-30-minute volume-weighted average price (VWAP) settlement mechanism for index derivatives. In plain terms: a settlement rule traders disliked is being rolled back, and the brokerage expects that to support volumes beyond the current volatility-led spike — while cautioning that a sustained recovery, not a temporary jump, is what BSE's earnings outlook really needs.

Key facts

• Price move: BSE shares rose 4.59% on Monday, October 26, hitting an intraday high of ₹3,379.30 and trading at ₹3,370.50 at 12:21 pm on the NSE.
• The call: Motilal Oswal upgraded BSE to Buy with a ₹4,000 target price — about 23% above current levels — in a report dated October 24.
• Volume rebound: F&O notional average daily turnover surged 85% in October month-to-date after falling roughly a third in August following the CAS rollout.
• Rule change: SEBI has partially reversed the CAS framework, restoring last-30-minute VWAP settlement for index derivatives from December 7, 2026.
• Market share: BSE holds more than 30% share of premium turnover; its premium-to-notional ratio has risen to about 14 basis points from 6-7 basis points in 2023-24, versus more than 20 basis points at NSE. Its cash-market share has grown from 7% to 9%.
• FY27 outlook: Motilal Oswal expects average daily turnover of ₹216 trillion in FY27, up 16% year-on-year.

What's next

Two dates now matter. First, December 7, when the VWAP settlement restoration takes effect and traders can judge whether volumes hold once the rule — not just volatility — is doing the work. Second, the NSE listing, which Motilal Oswal sees as a potential source of extra cash-market activity for BSE. The risks are the mirror image of the thesis: if October's volume spike fades with calmer markets, or regulation tightens again, the earnings path behind the ₹4,000 target gets harder. For now, though, the exchange that hosts India's oldest stock index just became one of the day's hottest stocks itself. This post reports what happened and why the market reacted; it is not financial advice.

FAQ

Why did BSE shares rise 4.6% today?

Motilal Oswal upgraded BSE to Buy with a ₹4,000 target, citing an 85% October rebound in derivatives turnover and SEBI's partial reversal of the CAS settlement framework.

What is the CAS framework and what changed?

CAS (Closing Auction Session) changed how index derivatives settle; its August rollout cut BSE's daily turnover by roughly a third. SEBI has partially reversed it, restoring last-30-minute VWAP settlement from December 7, 2026.

What does Motilal Oswal expect for BSE in FY27?

The brokerage expects average daily turnover of ₹216 trillion in FY27, up 16% year-on-year, with upside if the volume recovery continues and the premium-to-notional ratio converges toward NSE levels.

Is BSE the same as the Sensex?

No. BSE is the listed company that operates the Bombay Stock Exchange; the Sensex is the 30-stock index traded on that exchange. Monday's move was in BSE's own shares.

Sources: The Hindu BusinessLine, India IPO, MyFinBright, Whalesbook