Option Chain

The Option Chain shows the full set of call (CE) and put (PE) options for an underlying, side by side around the strike ladder, all streaming live. It's built for reading positioning at a glance — open interest, the at-the-money strike, put-call ratio, greeks and IV — and for jumping straight from a contract to its chart or time & sales.

Layout

The panel has three regions that stay aligned as you scroll:

• Call Options (CE) on the left
• the Strike ladder in the centre (highlighted at the ATM strike)
• Put Options (PE) on the right

The CE and PE sides share a single vertical scroll, so the strikes always line up. Each side scrolls horizontally on its own (and mirror each other) when you turn on extra columns like greeks. Scroll arrows appear at the left and right edges; the section and column headers stay pinned at the top.

Loading a chain

1. 1
   Search the underlying

   Type 3+ characters in the toolbar's symbol box. Results are limited to underlyings that actually have an option chain — indices and stocks with listed options/futures on NSE, BSE or MCX. Each result shows the name, exchange and type.

2. 2
   Pick an expiry

   The Expiry dropdown fills with the available expiries. Each entry shows the full date and a DTE badge (days to expiry, e.g. +2 DTE, 0 DTE). The nearest valid expiry is selected for you.

3. 3
   Set the strike range

   The ± selector controls how many strikes above and below the money are shown: 3, 5, 7, 10, 15, 20, 50 or 100.

If a futures contract is chosen, FutPrint resolves it to its underlying (e.g. BANKNIFTY futures → BANKNIFTY) so the chain, spot and futures line up.

The spot & futures bar

Once a chain loads, a strip under the toolbar shows the live Spot and Fut prices with their change and percent, each with a pulsing "live" dot. If the underlying has more than one futures expiry, a small selector lets you switch which future is referenced. These prices drive the ATM calculation.

The ATM strike

The at-the-money strike is the strike closest to the current spot/future price. It's highlighted in the strike column and used as the anchor for the strike range. Two controls help you keep it in view:

• ATM toggle — when on, the chain auto-centres the ATM row and keeps it centred as prices move (vertical scrolling is locked; the edge arrows show a lock icon).
• Target button — centre the ATM row once, without locking.

Rows are shaded by moneyness: in-the-money calls (strikes below ATM) and in-the-money puts (strikes above ATM) are tinted so the ITM/OTM split is obvious.

Columns

Open the column selector (sliders icon) to turn columns on or off. Each toggle controls the column on both sides; if only one side is on it shows as partially-checked. Reset Default restores the standard set (OI, LTP, Analysis, Volume).

The Analysis tag

The Analysis column summarises what price and open interest are doing together — the classic build-up read:

The Put-Call Ratio bar

Whenever a chain is loaded, a PCR bar shows the balance of total put OI versus total call OI:

• a proportional bar (green = call OI share, red = put OI share),
• the PCR number (total PE OI ÷ total CE OI),
• the total CE and PE OI (in lakhs, L).

A high PCR (lots of puts relative to calls) and a low PCR read very differently to options traders; the value is colour-coded to flag the extremes.

Working from a contract

Every CE/PE cell is interactive:

• Click a cell to open that exact contract's chart.
• Hover the LTP cell for quick buttons: open Chart, add to a Watchlist, or open Time & Sales for the contract.
• Right-click a row for the same actions in a menu.
• Click a strike in the centre column to open the underlying's chart.

When you add a contract to a watchlist, you can drop it into an existing watchlist or spin up a new one for it.

States you'll see

• Select Symbol — no underlying chosen yet; use the search box.
• Loading Chain — fetching the live option data.
• No Option Data — the chosen expiry has no options (try another expiry).

What's saved

The underlying, selected expiry, strike range and the chosen spot/futures are all stored with your workspace, so the chain reopens exactly as you left it.