Sensex Weekly Expiry: 72,500 Pivot in Focus as PCR Holds Above 1

The Sensex was trading close to 72,530 during the morning session on Thursday, October 1, 2026, as traders adjusted positions ahead of the weekly derivatives expiry.

Live options readings showed the index fluctuating around 72,530, with the Put-Call Ratio at 1.0466 and Max Pain placed at 72,500.

The current setup is fairly balanced. Put open interest is marginally higher than Call open interest, while the index itself is trading very close to the Max Pain strike. At the same time, heavy Call positioning around 73,000 continues to create a visible ceiling on the upside.

PCR Above 1 Shows Marginally Stronger Put Positioning

Total Call open interest stood at around 718.55 lakh, while total Put open interest was higher at approximately 752.06 lakh.

This has pushed the PCR slightly above 1, indicating a small advantage for Put positioning across the tracked strikes.

The intraday PCR trend was quite volatile in the first few minutes of trade. After falling sharply in early trade, the ratio recovered and moved towards the 1.05 zone as the Sensex bounced from its morning lows.

The rise in PCR suggests that Put positions were added as the index stabilised.

Since spot remains very close to 72,500, this strike is likely to remain the central reference level for the expiry session.

Heavy Call OI Makes 73,000 a Strong Hurdle

On the Call side, the most prominent open interest concentration is visible at 73,000, where Call OI is significantly higher than at most nearby strikes.

Large Call positions are also visible around 73,500, while 72,800 and several strikes above 73,000 also carry meaningful open interest.

Fresh positioning paints a similar picture.

The Change OI chart shows strong Call additions around 73,000, along with additions at 72,500, 72,600, 72,800 and other higher strikes.

This means the index may first face resistance around 72,600–72,800 before approaching the more important 73,000 barrier.

For a meaningful improvement in the short-term derivatives structure, Sensex would need to sustain above 73,000. Until that happens, Call writers are likely to remain comfortable.

Put Writers Create Support Below 72,500

The Put side shows a different picture, with the largest open interest concentration visible at 72,000.
Put OI is also reasonably strong around 72,300, 72,400 and 72,500, creating multiple layers of support below the prevailing market level.

From an immediate expiry perspective, 72,400–72,500 is the first support area to watch.

If this zone holds, the index could continue to oscillate around the Max Pain level.

However, if Sensex slips below 72,400, the next support could emerge around 72,300, while the strongest broader Put base remains near 72,000.

Fresh Put Addition Strengthens Lower Support Zone

The Change OI structure shows sizeable fresh Put additions at several strikes below the current spot price.
The strongest Put addition is visible around 72,000, while notable additions are also seen near 72,300 and 72,400.

This suggests that Put writers are actively building positions below the market, expecting these levels to hold through the expiry session.

Above the current spot price, Put additions become comparatively weaker, while Call writing becomes more prominent.

This creates a clear derivatives structure, with support being built below the market and resistance getting reinforced above it.

72,500 Could Act as Expiry Magnet

Max Pain is currently placed at 72,500, almost in line with the prevailing Sensex level.

The index was trading only a few points above this strike in the latest snapshot.

When spot trades this close to Max Pain on expiry day, the strike often becomes an important battleground between Call and Put writers.

A sustained hold above 72,500 could allow Sensex to move towards 72,600 and 72,800.

Beyond that, 73,000 remains the major resistance because of the heavy Call base.

If the index slips below 72,500, the focus would shift towards 72,400 and then 72,300.

Sensex Weekly Expiry Outlook

The overall expiry setup remains range-bound, with neither Call nor Put writers holding an overwhelming advantage.

PCR at 1.05 indicates slightly stronger Put positioning, while Max Pain at 72,500 sits almost exactly near the current market price.

On the downside, 72,400–72,500 remains the immediate support band. Below this, 72,300 becomes the next level to monitor.

The broader and stronger support is placed near 72,000, where both existing Put OI and fresh Put additions are substantial.

On the upside, the first resistance zone lies between 72,600 and 72,800.

The more important hurdle, however, is 73,000, which carries the highest Call open interest along with aggressive fresh Call additions.

If Sensex manages to sustain above 73,000, Call unwinding could support a move towards 73,300–73,500.
On the other hand, a decisive fall below 72,400 would weaken the immediate Put-supported structure and could expose lower levels towards 72,300 and eventually 72,000.

For now, with Sensex trading near Max Pain and options writers positioned on both sides, 72,400–73,000 appears to be the key expiry range, with 72,500 acting as the central pivot for the session.