Rs 710 and Rs 720 Puts Draw Heavy Interest on HDFC Bank Ltd. as Stock Tests New Lows

Put Options Event and Cash Market Context

On 19 August 2026, HDFC Bank Ltd. witnessed significant put option activity concentrated at the Rs 710 and Rs 720 strike prices, both expiring on 25 August. The Rs 720 puts led with 4,229 contracts traded, generating a turnover of approximately ₹189.12 lakhs and an open interest of 13,037 contracts. Meanwhile, Rs 710 puts saw 3,603 contracts traded with turnover near ₹82.20 lakhs and open interest of 4,862 contracts. The underlying stock price stood at Rs 718.85, just marginally above the Rs 710 strike and slightly below Rs 720, signalling that these puts are close to at-the-money (ATM) and slightly out-of-the-money (OTM) respectively.

This activity coincides with the stock hitting a new 52-week low of Rs 718.5 on the same day, continuing a two-day decline that has shaved 1.43% off its value. The stock is trading below all major moving averages — 5-day, 20-day, 50-day, 100-day, and 200-day — indicating a sustained downtrend. Delivery volumes have also dropped by 34.15% compared to the five-day average, suggesting weaker investor participation in the cash market despite the price fall. Is this put activity a reflection of growing bearish conviction or a strategic hedge against further downside?

Strike Price Analysis: Moneyness and Intent

The Rs 710 strike is approximately 1.2% below the current market price, placing it just in-the-money (ITM) for put holders, while the Rs 720 strike is about 0.15% out-of-the-money (OTM). The proximity of these strikes to the underlying price is critical in interpreting the options activity. ITM puts often indicate directional bearish bets or part of complex spread strategies, whereas OTM puts close to the money can be used for hedging or speculative purposes.

Given the stock’s recent weakness and the fact that the Rs 710 puts are ITM, the activity here could suggest some degree of bearish positioning. However, the Rs 720 puts, being slightly OTM, might also be serving as protective instruments for existing long positions, especially since the stock is trading below all key moving averages and near a support zone. Could these OTM puts be a hedge against further declines, or are they part of a put writing strategy anticipating a rebound?

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

Put option activity is inherently ambiguous and can signal different strategies depending on context. The three main interpretations for the current surge in Rs 710 and Rs 720 puts on HDFC Bank Ltd. are:

• Bearish Positioning: Buyers of ITM puts at Rs 710 may be speculating on further downside, expecting the stock to breach this level before expiry.
• Protective Hedging: Investors holding long stock positions might be purchasing OTM Rs 720 puts to limit losses amid the recent downtrend and weak delivery volumes.
• Put Writing (Bullish Bet): Sellers of these puts could be collecting premium, anticipating the stock will hold above these strikes, thus profiting if the puts expire worthless.

Given the stock’s sustained decline and trading below all major moving averages, the bearish interpretation has merit. Yet, the high open interest at Rs 720 and the relatively close strike distance to the underlying price also support a hedging narrative, especially as the stock approaches a technical support zone. The turnover and open interest ratios suggest a mix of fresh positioning and adjustments to existing positions rather than pure speculative selling.

Open Interest and Contracts Analysis

The Rs 720 strike shows an open interest of 13,037 contracts against 4,229 contracts traded on the day, indicating that a significant portion of the activity is fresh. The Rs 710 strike, with 4,862 open interest and 3,603 contracts traded, also reflects substantial new positioning. The ratio of contracts traded to open interest is roughly 0.32 for Rs 720 and 0.74 for Rs 710, suggesting that the Rs 710 activity is more concentrated in fresh trades, possibly directional bets or hedges initiated recently.

Such open interest build-up near expiry often signals that traders are positioning for a near-term move or protecting existing holdings. The sizeable open interest at these strikes also implies that these levels are being closely watched by market participants as potential support or resistance zones.

Cash Market Momentum and Technical Context

HDFC Bank Ltd. has been under pressure recently, with the stock falling 1.43% over two days and hitting a new 52-week low. It trades below all key moving averages, signalling a bearish technical setup. The decline is accompanied by a 34.15% drop in delivery volumes, indicating that the recent selling may lack strong conviction from long-term holders.

This combination of price weakness and thinning delivery participation often prompts investors to seek downside protection, which aligns with the observed surge in OTM put buying. The Rs 720 strike, just above the current price, roughly corresponds to a support zone below the 50-day moving average, making it a logical level for hedging activity rather than purely speculative bearish bets.

Delivery Volume and Quality of Price Action

The delivery volume on 18 August was 1.13 crore shares, down 34.15% from the five-day average, suggesting that the recent price decline is not strongly supported by committed buying or selling. This lack of delivery-backed conviction often leads to increased hedging demand as investors seek to protect unrealised gains or limit losses. The put option activity at Rs 710 and Rs 720 strikes fits this pattern, indicating that the market may be bracing for volatility rather than a sustained collapse.

Conclusion: Protective Hedging Likely Dominates Put Activity

The combined analysis of strike prices, open interest, contract volumes, and the cash market context suggests that the heavy put activity on HDFC Bank Ltd. is more consistent with protective hedging than outright bearish speculation. The stock’s position below all major moving averages and near a 52-week low supports the need for downside protection, especially given the weak delivery volumes signalling cautious investor sentiment.

While some directional bearish bets may be embedded in the ITM Rs 710 puts, the prominence of the Rs 720 OTM puts and the open interest patterns point to a strategy aimed at limiting losses rather than expecting a sharp decline. Put writing as a bullish bet is less evident given the current downtrend and the concentration of open interest at these strikes.

Should investors consider hedging their positions in HDFC Bank Ltd. as the stock navigates this technical weakness, or is the recent put activity signalling a deeper correction ahead?

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