Rs 670-730 Puts Draw Over 60,000 Contracts on HDFC Bank Ltd. Ahead of 29 Sep Expiry

Put Options Activity and Cash Market Snapshot

The most active put strikes for HDFC Bank Ltd. on 15 September were Rs 720 and Rs 730, with 18,834 and 14,279 contracts traded respectively. The Rs 690 and Rs 680 strikes also saw significant volumes, with over 11,000 and 10,700 contracts traded. Total turnover for these strikes ranged from ₹33.7 crores at Rs 670 to a substantial ₹1,226 crores at Rs 730. Open interest is highest at Rs 730 (15,772 contracts) and Rs 720 (13,555 contracts), indicating these strikes are focal points for traders ahead of expiry.

The underlying stock price closed at Rs 723, up 2.62% on the day and has gained 4.86% over the past three sessions. This rally places the Rs 720 and Rs 730 puts near or slightly out-of-the-money (OTM), while the Rs 670 to Rs 690 strikes are deeper out-of-the-money, ranging from 4.1% to 7.3% below the current price.

The expiry date of 29 September is just two weeks away, concentrating trader attention on short-term risk management and positioning.

HDFC Bank Ltd.'s put activity is intriguing given the stock's recent strength — is this heavy put buying a sign of protective hedging or a bearish conviction?

Strike Price Analysis: Moneyness and Intent

The Rs 730 and Rs 720 strikes sit just above and just below the current price, making them at-the-money (ATM) or slightly out-of-the-money puts. These strikes are typically favoured for hedging existing long positions, as they provide protection against a moderate pullback without requiring a large premium outlay.

In contrast, the Rs 670 to Rs 690 strikes are more deeply out-of-the-money, implying a more bearish stance if these puts were bought outright. However, the volume and open interest at these strikes are lower relative to the 720 and 730 strikes, suggesting less focus on deep downside protection or speculative bearish bets at this stage.

Put writing (selling) activity is also a possibility, especially at the Rs 730 strike where open interest is highest. Put sellers at this level are likely expressing confidence that the stock will not fall below this strike by expiry, collecting premium income in the process.

Overall, the concentration of activity near the current price points to a blend of hedging and cautious positioning rather than aggressive bearish bets.

Interpreting the Put Activity: Hedging, Bearishness, or Put Writing?

Put options can serve multiple purposes, and the context here is critical. The stock's recent 4.86% gain over three days and its position above the 5-day and 20-day moving averages but below the 50-day and longer-term averages suggest a short-term rally within a broader consolidation phase.

OTM puts at Rs 720 and Rs 730 while the stock trades higher are consistent with protective hedging by longs seeking to guard against a near-term pullback — should investors consider similar protection? This interpretation is supported by the high open interest and turnover at these strikes, indicating established positions rather than speculative shorts.

Bearish positioning would more likely manifest as ATM or in-the-money (ITM) put buying during a downtrend, which is not the case here. The stock's upward momentum and the strike distribution argue against a dominant bearish bet.

Put writing at the Rs 730 strike, with the highest open interest, suggests some traders are comfortable collecting premium, expecting the stock to hold above this level. This bullish put selling complements the hedging narrative, reflecting a market balancing caution with confidence.

Open Interest and Contracts: Fresh Positioning or Adjustments?

The ratio of contracts traded to open interest is notable. For example, at the Rs 720 strike, 18,834 contracts traded against an open interest of 13,555, indicating significant fresh activity or position adjustments. Similarly, Rs 730 saw 14,279 contracts traded versus 15,772 open interest, suggesting a mix of new trades and existing positions.

Lower ratios at Rs 670 and Rs 680 strikes imply less fresh positioning there, reinforcing the focus on strikes near the current price. This pattern aligns with hedging activity, where traders add or roll protective puts as the stock moves.

Open interest build-up at Rs 730 and Rs 720 also supports the idea of a protective floor being established, consistent with traders managing risk around key technical levels.

Cash Market Context: Moving Averages and Delivery Volumes

HDFC Bank Ltd. currently trades above its 5-day and 20-day moving averages but remains below the 50-day, 100-day, and 200-day averages. The Rs 720 put strike roughly corresponds to a support zone just below the 50-day moving average, a common level for traders to hedge against a pullback.

Delivery volumes have declined by 2.64% against the 5-day average, despite the stock's rally. This thinning participation may explain why put buyers are seeking protection — the rally lacks strong delivery-backed conviction, increasing the risk of a short-term correction.

The stock's outperformance of its sector by 1.42% and the Sensex by 2.37% today adds to the complexity, as the options market appears to be balancing optimism with caution.

Conclusion: Protective Hedging Dominates Put Activity

The heavy put option activity on HDFC Bank Ltd. ahead of the 29 September expiry is best understood as a combination of protective hedging and selective put writing rather than outright bearish positioning. The concentration of contracts at strikes near the current price, the stock's recent gains, and the technical context all point to traders managing risk amid a cautious rally.

While some bearish bets cannot be ruled out at the lower strikes, the dominant narrative is one of risk management by longs and premium collection by put sellers confident in the stock's near-term support. Does this nuanced options activity suggest a strategic pause or a foundation for further gains?

Only Rs. 9,999 - Get MojoOne + Stock of the Week for 1 Year Start at 33% Off →

Key Data at a Glance

Disclaimer: Options trading involves significant risk and is not suitable for all investors. The interpretations presented are based on available data and do not constitute investment advice.