Union Bank of India

NSE: UNIONBANKFinancial ServicesLot size: 4425

Union Bank of India Option Chain Analysis

2026-09-292026-10-272026-11-23
Total CE OI
4.12 Cr
Total PE OI
2.82 Cr
PCR
0.69Bearish
CE OIChgVolIVLTPStrikeLTPIVVolChgPE OI
4K0%145%04K
13K0%150%
27K0%155%089K
00%160%+4K5.5 L
80K0%165%04.9 L
00%167.5%00
4.0 L+4K%170%+49K15.8 L
40K+13K%172.5%+4.2 L8.5 L
5.0 L0%175%-1.5 L20.8 L
27K+27K%177.5%+1.2 L4.3 L
27.0 L-4K%180%+2.2 L63.0 L
10.6 L+4K%182.5%-62K14.6 L
33.9 L+89K%185ATM%-3.0 L84.8 L
9.2 L+40K%187.5%+80K9.4 L
65.9 L+84K%190%+84K26.0 L
12.3 L-49K%192.5%-4K3.9 L
58.7 L+10.0 L%195%+9K7.8 L
49.5 L+1.5 L%197.5%040K
47.3 L+4.3 L%200%-1.6 L10.0 L
3.6 L+40K%202.5%01.4 L
49.2 L+35K%205%00
40K+40K%207.5%00
22.8 L+1.9 L%210%09K
10.4 L-1.3 L%215%04K

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 195‑strike call cluster commands the largest open interest at 110 contracts, establishing a near‑term resistance around ₹195, while the 172.5‑strike put cluster mirrors this with 110 contracts, creating a support level near ₹172.5 and a tight OI ladder that underscores market focus. With the spot at ₹187.22, the implied price corridor spans roughly ₹172.5 to ₹195, suggesting the market expects the underlying to oscillate within this band before the September 29 expiry, a range that aligns with historical volatility patterns. The ATM volatility stands at 25.83%, implying moderate premium levels that are consistent with the observed OI distribution and reinforce the defined trading range.

OI Buildup Activity

Fresh open‑interest adds surface at the 195‑strike call (+9 contracts, ₹91,200) and at the 200‑strike call (+4 contracts, ₹29,225), indicating new sellers are taking positions near the upper resistance and reinforcing the ceiling of the price band. On the put side, additional OI appears at 172.5‑strike (+4 contracts, ₹24,800), 177.5‑strike (+1 contract, ₹19,475) and 180‑strike (+2 contracts, ₹16,825), reflecting fresh bearish bets anchoring the support zone and adding depth to downside protection. These accumulation patterns suggest that market makers are reinforcing both the resistance and support thresholds ahead of the expiry, providing a balanced order‑book structure.

Volatility Read

Implied volatility of 25.83% indicates a moderate premium environment, with no extreme skewness in pricing across strikes. The skew metric is bearish, showing higher relative demand for puts versus calls at comparable strikes, which hints at a slight downside bias in trader sentiment.

Key OI Levels

The concentration peaks at the 195‑strike for calls and the 172.5‑strike for puts, each hosting 110 contracts.

Frequently Asked Questions

What is the highest call OI strike for Union Bank of India today?
The strike with highest call (CE) open interest for Union Bank of India is ₹190 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 Union Bank of India today?
The strike with highest put (PE) open interest for Union Bank of India is ₹185 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 Union Bank of India options mean?
Open Interest (OI) buildup in Union Bank of India 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 Union Bank of India options expire?
Union Bank of India 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 Union Bank of India option chain?
The Union Bank of India 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.