3791 Put Contracts on Tata Power at Rs 400 Strike Ahead of April Expiry

Put Options Event and Cash Market Context

The 28 April 2026 expiry saw concentrated put option activity in Tata Power Company Ltd, with 3,791 contracts traded at the Rs 400 strike. The turnover for these contracts was approximately ₹344.11 lakhs, while open interest stood at 2,779 contracts. This indicates a significant volume of fresh positioning, as the number of contracts traded exceeds the open interest by a notable margin. The stock itself has been on a positive trajectory, gaining 5.02% over the past two days and outperforming its sector by 2.01% on the day of the put activity. The closing price of Rs 413.60 is also just 0.95% shy of its 52-week high of Rs 418.45 — is this put activity a sign of protection or a bearish bet?

Strike Price Analysis: Moneyness and Intent

The Rs 400 strike price is approximately 3.3% out-of-the-money (OTM) relative to the underlying price of Rs 413.60. This proximity to the current price places the puts near the money, but still outside the immediate money range. Such OTM puts are often used for hedging purposes, especially when the underlying is in an uptrend, as is the case here. If the put buyers were purely bearish, one might expect more in-the-money (ITM) or at-the-money (ATM) strikes to dominate, signalling a bet on a near-term decline. Instead, the strike distance suggests a protective stance, potentially guarding against a modest pullback rather than a sharp fall.

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

Put option activity can be ambiguous. The three primary interpretations are: directional bearish positioning (put buying anticipating a decline), hedging of existing long positions (protective puts), or put writing (selling puts to collect premium, implying bullishness). Given the stock’s recent gains and proximity to its 52-week high, the heavy put volume at Rs 400 is more consistent with hedging. Investors may be locking in downside protection after recent gains, especially since the strike is just below the current price. Put writing is less likely here, as the open interest is substantial but not disproportionately higher than contracts traded, and the premium turnover suggests active buying rather than premium collection. Directional bearish bets would typically show more activity in ATM or ITM puts, which is not the case.

Open Interest and Contracts Analysis

The ratio of contracts traded (3,791) to open interest (2,779) is roughly 1.36:1, indicating that a significant portion of the activity represents fresh positions rather than merely rolling or closing existing ones. This fresh positioning aligns with the idea of investors seeking protection amid recent gains rather than aggressively betting on a downturn. The open interest level is moderate, suggesting that while the strike is popular, it is not yet saturated with positions, leaving room for further adjustments as expiry approaches.

Cash Market Momentum and Technical Alignment

Tata Power Company Ltd is trading above all key moving averages — the 5-day, 20-day, 50-day, 100-day, and 200-day — signalling a strong technical uptrend. The Rs 400 strike price roughly corresponds to a support zone just below the 50-day moving average, which often acts as a technical floor during pullbacks. The stock’s rally has been accompanied by a decline in delivery volumes, which fell 19.6% against the 5-day average on 10 Apr 2026, suggesting that the recent gains may lack robust participation. This thinning delivery volume could be a reason why investors are seeking downside protection through puts — should investors consider hedging their positions in Tata Power as the rally matures?

Delivery Volume and Market Participation

Despite the stock’s recent rally, delivery volumes have declined, with 25.17 lakh shares delivered on 10 Apr 2026, down 19.6% from the 5-day average. This suggests that the rally may be driven more by short-term trading than by strong institutional accumulation. The lack of delivery-backed conviction often prompts investors to hedge their gains with protective puts, which aligns with the observed put activity at the Rs 400 strike. The weighted average price during the day leaned closer to the intraday low of Rs 390.25, indicating some intraday selling pressure despite the overall positive close.

Conclusion: Protective Hedging Dominates Put Activity

The heavy put option activity at the Rs 400 strike on Tata Power Company Ltd is best interpreted as protective hedging rather than outright bearish positioning. The stock’s strong technical position above all major moving averages, combined with the strike’s proximity just below the current price, supports the view that investors are seeking to guard recent gains against a modest pullback. The open interest and turnover data reinforce this interpretation, showing fresh buying interest rather than put writing or aggressive bearish bets. The declining delivery volumes add further context, suggesting caution amid a rally that may lack broad participation — is this the right moment to hedge or hold your position in Tata Power?

Key Data at a Glance

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