SENSEX Options — Where Positioning Sits Today

Where SENSEX open interest sits

The heaviest call open interest is at the 74,000 strike, holding 30,27,420 contracts — 7.5% of all SENSEX call open interest on the board, 0.96% above the spot of 73,299. Call open interest concentrated above price is commonly read as resistance, on the reasoning that writers there are defending the level. It is a crowding observation, not a rule — the level holds until that open interest unwinds.

On the put side the weight is at 72,000 with 31,48,020 contracts, 6.3% of SENSEX put open interest, 1.77% below spot. Put open interest concentrated below price is usually treated as support for the same reason, and breaks the same way.

No single strike dominates — the heaviest holds only 7.5% of its side, so open interest is spread across the board rather than banked at one level. A flat distribution like this gives weaker reference levels than a peaked one, and the walls quoted above should be read loosely.

New to this? Read the Open Interest guide — how to read it, with worked examples.

What SENSEX's PCR is saying

SENSEX is carrying 4,99,64,600 contracts of put open interest against 4,05,69,080 of call, a put-call ratio of 1.23 — mildly put-heavy positioning. PCR has no universally good value; it is read against its own recent range, and the direction it is moving carries more than the level.

It opened the session at 1.08 and has risen to 1.23 — a move of +0.15. Puts have been added faster than calls since the open, which is the footprint of put writing below spot or of call unwinding above it.

New to this? Read the PCR guide — how to read it, with worked examples.

SENSEX against its max pain

Max pain for SENSEX computes to 73,300, with spot at 73,299 — effectively on the level. That strike is where the total payout to option buyers at expiry is smallest. It is a level read from the current Open Interest distribution, not a prediction, and the distribution keeps changing.

The pain curve around it is flat — the total payout at the neighbouring strikes is only 0.8% higher than at 73,300. A basin that shallow means several strikes have almost the same total payout, so the level is a loose reading and small shifts in Open Interest can move it.

There is 1 session left to expiry. The level is worked again at every reading, so it moves as the Open Interest changes.

New to this? Read the Max Pain guide — how to read it, with worked examples.

What changed in SENSEX today

The largest fresh call position went on at 74,000, +19,69,360 contracts (+186.1%). Its premium fell over the same window, which is the footprint of call writing rather than call buying.

On the put side the heaviest addition is at 72,500, +20,72,720 contracts (+210.2%). Premium fell alongside it — put writing, which is usually read as support being built at that strike.

The biggest unwind is −3,40,320 call contracts at 75,600. Positions closing matters as much as positions opening — a level defended by open interest stops being defended when that open interest leaves, and a break through a strike that is unwinding is a different event from a break against one that is intact.

Change is measured against this session's opening snapshot rather than the previous close, so the overnight gap and the positions rolled at the open do not swamp the reading.

New to this? Read the OI Change guide — how to read it, with worked examples.

The move priced into SENSEX

The at-the-money straddle on SENSEX costs 610.45 — 308.55 for the call and 301.90 for the put at the 73,300 strike. That sum is what the market charges to be covered in either direction, which makes it the move being priced in: about 0.83% of spot, or roughly 72,690 to 73,910 by expiry on a breakeven basis.

The straddle has moved −34.7% since the open. Premium coming out that quickly usually means implied volatility is falling, time is passing, or both — which is why an option position can lose money with the direction called correctly.

Implied volatility at the money is 20.0% on the call and 20.0% on the put. The two legs are priced almost identically, so there is no meaningful skew at the money right now.

New to this? Read the ATM Premium guide — how to read it, with worked examples.