Updated As of 1:30 PM IST
The Sensex October monthly expiry is witnessing substantial put additions, a rising Put Call Ratio (PCR) and an upward shift in Max Pain, indicating that options positioning has strengthened on the bullish side during the session. However, the latest price movement suggests that the upside is facing resistance, particularly around 73,800–74,000.
The Sensex was trading at 73,712.52, up 466.49 points or 0.64%, after retreating from its intraday highs near 73,900. Despite the positive index performance, the retreat towards 73,700 is significant because the PCR remains elevated even as the index loses momentum. This divergence makes the next move around 73,700–73,800 particularly important.
Put OI Dominates, but 74,000 Remains a Strong Resistance
The open interest distribution shows put OI of approximately 11.64 crore against call OI of 7.49 crore across the strikes. The all-strike PCR stands near 1.55, reflecting considerably higher outstanding put positions than calls.
The largest visible put concentrations are around 73,500 and 73,000, with substantial positioning also at 73,700 and 73,800. This creates a layered support structure, with 73,500 emerging as the more significant downside reference.
On the call side, 74,000 carries the highest visible concentration, followed by 74,500. Call OI is also substantial at 73,800 and 73,900, suggesting that the index could encounter selling pressure before reaching 74,000.
Importantly, 73,800 has sizeable positions on both sides. With the spot index now below this strike, the level has shifted from being a potential support reference to an immediate resistance and decision zone.
Fresh OI Additions Favour Puts, but Price Confirmation Is Missing
The change in open interest chart provides a stronger indication of intraday positioning. Fresh put OI additions stand at approximately 7.72 crore compared with 4.35 crore in calls.
The strongest put additions are visible around 73,500, followed by 73,000, 73,700 and 73,800. On the call side, substantial fresh additions are concentrated around 74,000, 73,800 and 73,900.
These additions, alongside the index's intraday rise, are consistent with aggressive put writing. However, OI additions alone cannot establish whether new contracts were initiated by option sellers or buyers.
The concern is that the index has retreated towards 73,700 despite this favourable put positioning. If the index continues to decline, traders holding short puts near the money may begin covering their positions, potentially accelerating weakness.
Conversely, a move above 73,800, accompanied by call unwinding, would strengthen the case for another attempt towards 74,000.
PCR and Max Pain: Supportive Positioning, Weakening Intraday Momentum
The PCR chart shows a sharp improvement from approximately 1.25 during the early session to above 1.60 around 10:30 AM. After moderating towards 1.40, it recovered to approximately 1.55.
The Sensex, meanwhile, advanced strongly during the morning session before losing ground in the latest readings. The elevated PCR indicates that put positions remain dominant, but the recent price decline suggests that this positioning is no longer translating into immediate upward momentum.
The Max Pain chart provides another important development. Max Pain has moved progressively higher from around 73,300 in the morning to 73,800.
This upward shift reflects the change in the options OI distribution during the session. With the Sensex around 73,712, the index is now approximately 88 points below Max Pain.
A move back towards 73,800 remains possible if prices stabilise. However, Max Pain is a theoretical minimum-payout calculation, not a guaranteed expiry settlement level. Its importance should be assessed alongside actual price behaviour and OI changes.
Key Support and Resistance Levels for October Expiry
Sensex level
| Significance
|
74,500
| Higher resistance with considerable Call OI
|
74,000
| Strongest visible Call OI barrier
|
73,900
| Immediate overhead resistance
|
73,800
| Max Pain and crucial intraday pivot
|
73,700
| Immediate support and breakdown trigger
|
73,500
| Major support backed by substantial Put OI
|
73,300
| Next downside reference if 73,500 breaks
|
73,000
| Deeper support with significant Put OI
|
The immediate contest is between buyers defending 73,700 and sellers positioned around 73,800–74,000. A sustained break on either side, accompanied by corresponding changes in OI, would offer stronger directional confirmation.
Sensex Expiry Outlook and Trading Strategy
The immediate outlook is neutral to cautiously positive, but the latest loss of momentum warrants a more selective approach. The broader options positioning remains supportive, while the price action is beginning to weaken.
Bullish scenario: Reclaim of 73,800
If the Sensex recovers above 73,800 and sustains that level, accompanied by unwinding in the nearby Call OI, the index could attempt 73,900 followed by 74,000. A decisive move above 74,000 would be needed to open further upside. A defined-risk bull call spread is preferable to aggressively chasing naked calls, provided option premiums offer reasonable risk-reward.
Bearish scenario: Sustained break below 73,700
A sustained decline below 73,700, particularly if accompanied by put unwinding at 73,700–73,800, would indicate that the immediate support structure is weakening. This could bring 73,500 into focus, followed by 73,300 if selling intensifies. A bear put spread may offer a defined-risk way to express this view, subject to premium and liquidity checks.
Range-bound scenario: 73,700–73,900
If the index repeatedly fails around 73,800–73,900 but continues to defend 73,700, expiry trading may remain choppy. Option premiums can decay rapidly in such conditions, although a late directional move can be equally sharp. Avoid unhedged option selling simply because the index appears range-bound.
Conclusion: 73,700 Holds the Key to the Remaining Session
The October expiry positioning continues to favour the put side, with the all-strike PCR near 1.55, and significant put additions around 73,500. The upward shift in Max Pain to 73,800 further shows how the options structure has adjusted during the session.
Nevertheless, the retreat from near 73,900 to 73,712 indicates that buyers are struggling to sustain the intraday advance. The strong call concentration at 74,000 continues to restrict the upside, while 73,700 has become the immediate level to defend.
For the remaining expiry session, a sustained move above 73,800 would restore the possibility of a rise towards 74,000, whereas a decisive break below 73,700 could expose 73,500. Until either move is confirmed, directional trades carry increased risk of reversals.
With India VIX around 15.57 and same-day expiry accelerating time decay and sensitivity to spot movements, traders should prioritise defined-risk positions, avoid chasing sudden premium spikes and reassess their positions if OI begins unwinding at key strikes.
Updated As of 1:30 PM IST
On Thursday, October 29, 2026, the Sensex traded near the 73,600 mark during the morning session as traders positioned themselves for the monthly derivatives expiry.
The available options data showed the Sensex spot at 73,583.84 in the open interest snapshot, while the latest PCR and Max Pain charts recorded the index at 73,604.37. The Put-Call Ratio (PCR) stood at 1.2273, while Max Pain was positioned at 73,500.
The derivatives structure reflects higher Put open interest compared with Call open interest, suggesting that downside support remains relatively stronger.
With the Sensex trading approximately 104 points above the 73,500 Max Pain level, substantial Put positioning at lower strikes could provide support. However, significant Call concentrations at 74,000 and 74,500 may restrict further upside unless Call writers begin unwinding positions.
Options Setup Shows Put OI Dominance
The Sensex options structure shows total Call open interest of approximately 676.91 lakh, compared with total Put open interest of around 830.78 lakh.
This represents an excess of nearly 153.87 lakh in Put OI over Call OI. The corresponding PCR stands at approximately 1.23.
A PCR above 1 indicates greater Put positioning relative to Calls. While generally associated with a supportive derivatives setup, the ratio alone does not confirm bullish market direction.
The intraday PCR chart shows that the ratio declined from approximately 1.24 during the opening minutes to below 1 before recovering towards 1.23.
This movement coincided with a recovery in the Sensex from approximately 73,300 to 73,604.
The improvement in PCR suggests strengthening intraday positioning, although the concentration of Call OI at higher strikes indicates that overhead resistance remains relevant.
74,000 Emerges as Immediate Major Call Resistance
The Call side shows substantial open interest accumulation above the prevailing Sensex level.
Among the visible strikes, 74,000 carries the highest Call OI at approximately 60 lakh. Another significant concentration is visible at 74,500, with around 39 lakh.
Notable Call positioning is also visible at 73,500 and 73,600, carrying approximately 38 lakh and 27 lakh, respectively.
This creates multiple resistance layers around and above the prevailing market price.
The immediate resistance lies at 73,700–73,800, followed by 73,900. Beyond these levels, 74,000 emerges as the strongest visible Call hurdle.
The Change in OI chart reinforces this structure. Fresh Call additions are strongest at 74,000, with approximately 41 lakh added.
Further additions are visible at 73,500 and 74,500, suggesting active Call-side positioning at higher strikes.
A sustained move above 73,800, accompanied by Call unwinding, could improve the intraday setup and bring 74,000 into focus.
However, 74,500 would remain another substantial resistance level.
73,000 Holds the Strongest Put Base
The Put side shows its largest open interest concentration at 73,000, where OI stands near 68 lakh.
Significant Put positioning is also visible at 73,500, carrying approximately 41 lakh. Other notable concentrations appear at 73,300, 73,400 and 73,200.
This establishes a layered support structure below the prevailing Sensex level.
The 73,500 strike becomes the immediate support reference, coinciding with the current Max Pain level and substantial Put positioning.
A sustained move below 73,500 could expose the index to weakness towards 73,400–73,300, followed by 73,200.
From a broader expiry perspective, 73,000 remains the strongest Put-backed support among the visible strikes.
The concentration of Put OI across several lower strikes suggests that downside moves could encounter support unless Put writers begin unwinding positions.
Fresh Put Additions Concentrated Below Spot
The Change in OI chart shows substantial fresh Put additions across strikes below the prevailing Sensex level.
The strongest Put addition is visible at 73,000, with approximately 51 lakh added in the available snapshot.
Substantial additions are also visible at 73,500, 73,400, 73,300 and 73,200, indicating considerable activity across lower strikes.
Meanwhile, fresh Call additions dominate several higher strikes, particularly around 73,500, 74,000 and 74,500.
This combination suggests that traders are building Put positions at lower levels while simultaneously adding Call exposure above the prevailing market price.
The positioning indicates an options-defined trading range, with 73,500 acting as the immediate pivot and 74,000 emerging as the major upside hurdle.
However, without participant-level data, the additions cannot conclusively be classified as writing activity.
Max Pain Positioned at 73,500
The Max Pain chart shows an upward adjustment during Thursday's morning session.
The level initially stood near 73,300 before rising to approximately 73,400. It subsequently moved higher and reached 73,500 in the latest snapshot.
At the same time, the Sensex advanced to 73,604, approximately 104 points above the Max Pain level.
The upward adjustment indicates that the theoretical minimum-payout level shifted higher as the options structure evolved.
The movement also coincided with improving intraday PCR and a recovery in the underlying index.
However, Max Pain is not a guaranteed settlement level, particularly during expiry sessions experiencing sharp directional movements.
Sensex Monthly Expiry Outlook
The Sensex expiry setup reflects a Put-heavy derivatives structure, with PCR at 1.23 and Max Pain positioned at 73,500.
Immediate resistance stands at 73,700–73,800, followed by 74,000 and 74,500.
A sustained breakout above 74,000, supported by Call unwinding, could strengthen the bullish setup.
On the downside, 73,500 forms the immediate support level, followed by 73,400–73,300 and the stronger 73,000 Put base.
A breakdown below 73,000 could shift focus towards 72,800–72,600.
Overall, the derivatives structure indicates a cautiously positive bias, supported by higher Put OI and the recovery in intraday PCR. However, substantial Call positioning at 74,000 could limit upside momentum.
The 73,500–74,000 zone remains the immediate battleground, while 73,000–74,500 represents the broader options-defined range.
The direction of the October 29 expiry session could depend on whether the Sensex sustains above 73,500 and successfully crosses the significant Call concentration at 74,000.
