Central Depository Services (India) Limited

NSE: CDSLFinancial ServicesLot size: 475

Central Depository Services (India) Limited Option Chain Analysis

2026-09-292026-10-272026-11-23
Total CE OI
73.2 L
Total PE OI
46.9 L
PCR
0.64Bearish
CE OIChgVolIVLTPStrikeLTPIVVolChgPE OI
7K+4K%1,120%+4K15K
00%1,160%+47540K
9K+2K%1,200%+4751.7 L
4750%1,220%-1K31K
3K0%1,240%-47554K
7K0%1,260%-36K2.4 L
3K0%1,280%-8K1.2 L
92K+475%1,300%-16K6.0 L
18K-475%1,320%-23K2.1 L
3.3 L-475%1,340%+21K3.3 L
3.2 L+4K%1,360%-1.4 L5.4 L
2.5 L-8K%1,380%+2.0 L4.7 L
13.3 L+1.9 L%1,400ATM%+99K9.6 L
8.3 L+2.6 L%1,420%+32K1.7 L
9.5 L+83K%1,440%-9K2.0 L
8.4 L+1.6 L%1,460%+88K2.9 L
2.9 L-25K%1,480%-9501.1 L
7.5 L+56K%1,500%01.0 L
4.0 L+12K%1,520%027K
1.2 L+40K%1,540%04K
3.2 L+7K%1,560%07K
3.5 L+3K%1,600%021K
1.0 L+23K%1,640%00

Bold CE OI = highest call writing (resistance). Bold PE OI = highest put writing (support). ATM = at-the-money.

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Key Strike Levels

The open‑interest (OI) profile clusters around the 1400 ₹ strike for calls and the 1380 ₹ strike for puts, forming a tight band that brackets the current spot of ₹1,394.6. The highest call OI of 1,000 contracts sits at the 1400 level, acting as a near‑term resistance, while the equal‑sized put OI at 1380 provides a corresponding support. This symmetric concentration suggests an implied trading range of roughly ₹1,380 to ₹1,420 for the remainder of the week.

OI Buildup Activity

New call OI emerges prominently at 1420 ₹ (+2 contracts, 62,675 contracts), 1400 ₹ (+1 contract, 94,275 contracts) and 1460 ₹ (+1 contract, 56,750 contracts), indicating fresh bullish positioning and potential hedging by writers. On the put side, fresh OI accumulates at 1380 ₹ (+2 contracts, 2,02,350 contracts), 1400 ₹ (+99 contracts, 275 contracts) and 1460 ₹ (+88 contracts, 350 contracts), reflecting defensive buying and writer risk‑mitigation. The parallel buildup in both call and put legs at adjacent strikes points to a balanced stance among market participants ahead of expiry.

Volatility Read

The at‑the‑money implied volatility stands at 23.27 %, modest for this underlying and consistent with the narrow OI band. The volatility skew is bearish, with out‑of‑the‑money calls priced lower than equivalent puts, signaling market bias toward downside moves.

Key OI Levels

The most concentrated open interest resides at the 1400 ₹ call (1,000 contracts) and the 1380 ₹ put (1,000 contracts).

Frequently Asked Questions

What is the highest call OI strike for Central Depository Services (India) Limited today?
The strike with highest call (CE) open interest for Central Depository Services (India) Limited is ₹1,400 for the 2026-09-29 expiry. This acts as a key resistance level since call writers will defend this strike aggressively near expiry.
What is the highest put OI strike for Central Depository Services (India) Limited today?
The strike with highest put (PE) open interest for Central Depository Services (India) Limited is ₹1,400 for the 2026-09-29 expiry. This acts as a key support level — put writers will tend to defend this level near expiry.
What does OI buildup in Central Depository Services (India) Limited options mean?
Open Interest (OI) buildup in Central Depository Services (India) Limited options shows how many net new contracts are being created at each strike. Rising OI at a strike means fresh positions (writers or buyers). Rising OI with rising price = long buildup (bullish); rising OI with falling price = short buildup (bearish).
When does Central Depository Services (India) Limited options expire?
Central Depository Services (India) Limited options have their nearest expiry on 2026-09-29. NSE F&O stocks have monthly expiry contracts — typically the last Tuesday of each month. MarketNetra shows data for the nearest two expiries.
How to read Central Depository Services (India) Limited option chain?
The Central Depository Services (India) Limited option chain shows calls (CE) on the left and puts (PE) on the right for each strike price. Key columns: OI (total open contracts), OI Change (new positions today), Volume (today's trades), IV (implied volatility — higher = more uncertainty), and LTP (last traded price). The ATM (at-the-money) strike is highlighted in blue.