How to use options payoff charts on Sensibull

From WebNotes, a public knowledge base. Last updated . Reading time ~10 min. Level: Intermediate.

The payoff chart on Sensibull is the primary visual tool for understanding what an options strategy earns or loses across a range of possible outcomes at expiry. It also shows the strategy’s current mark-to-market value as implied volatility and time change, making it an essential diagnostic before and during a trade. This guide explains how to read every element of the chart and how to use Sensibull’s interactive features for pre-trade strategy selection.

For building the strategy itself see How to build an options strategy on Sensibull. For the underlying options chain see How to use the options chain on Kite.

What the payoff chart shows

A payoff chart (also called a P&L diagram) plots two things:

  1. At-expiry payoff (solid line): the net profit or loss of the strategy as a function of the underlying’s final price at the moment of expiry, assuming the position is held to the last trading day. This is the theoretical maximum information, independent of time and IV path.

  2. Current theoretical P&L (dashed line or colour-differentiated overlay): the strategy’s theoretical P&L today, at the current implied volatility, if the underlying were instantaneously at any price shown on the X-axis. This line is above or below the at-expiry line depending on whether the strategy is net long or net short premium.

The vertical distance between the two lines at any X-axis point represents the time value + IV premium that remains in the options. For a short premium strategy, this distance represents unrealised profit that is already in the position’s favour relative to expiry; for a long premium strategy, it represents the cost of theta that must be earned back.

Step-by-step procedure

Open Sensibull and load your strategy

Navigate to sensibull.com and log in. In the Strategy Builder, select the underlying, expiry, and add the legs of the strategy. For a complete guide on this process see How to build an options strategy on Sensibull.

Once all legs are added, the payoff chart updates automatically.

Locate the payoff chart

The payoff chart occupies the main visual area of the Strategy Builder, typically below the legs table and above the Greeks summary. If you are on a narrow screen, you may need to scroll down to see the full chart.

The chart has:

  • Y-axis (vertical): P&L in Indian rupees (₹). Values above zero are profit; values below zero are loss. For multi-lot positions, the Y-axis reflects the total portfolio P&L.
  • X-axis (horizontal): the underlying price at expiry (for the solid at-expiry line) or the hypothetical underlying price today (for the dashed current line). The centre of the X-axis typically shows the current spot price.
  • Zero line: the horizontal reference at P&L = 0; the breakeven point(s) are where the payoff line crosses this zero line.

Identify the at-expiry payoff line

Hover your mouse over the solid line (at-expiry payoff) at different points along the X-axis. The tooltip shows the exact P&L for that underlying price at expiry.

Reading the shape of the at-expiry line reveals the strategy type:

Shape of at-expiry lineStrategy type
Flat losses below a point, rising slope, then flat profit above another pointBull call spread or long call
Rising profit from left, peaks in the centre, then flat losses on both sidesShort strangle or short straddle
Flat losses on both extremes, peak profit in a range in the centreIron condor
V-shaped: profit on both extremes, loss in the centreLong straddle or long strangle
Upward sloping line (linear)Long futures
Asymmetric single-kink shapeSingle long or short option

Read the current P&L line

The dashed line (current P&L) shows what the strategy is theoretically worth right now, at the current implied volatility, as if you are closing it at this moment at each possible underlying price.

Key observations:

  • For a short premium strategy (sold straddle, iron condor): the dashed line is above the solid at-expiry line in the profit zone. This means the strategy is currently profitable in a wider range than it will be at expiry. As time passes and IV contracts, the dashed line migrates downward toward the solid at-expiry line. This migration is time decay (Theta) working in the short-premium seller’s favour.

  • For a long premium strategy (bought straddle, bought call): the dashed line is below the solid at-expiry line at the extremes. This means the strategy currently shows a loss in regions where, at expiry, it would be profitable. Time must pass and the underlying must move enough for the current P&L to reach the at-expiry profit zone. The downward migration of the dashed line toward the solid line represents the Theta cost of holding.

Identify breakeven, maximum profit, and maximum loss

Below the payoff chart, Sensibull displays a summary table:

MetricWhat it shows
Lower breakevenThe underlying price below which the strategy produces a net loss at expiry
Upper breakevenThe underlying price above which the strategy produces a net loss at expiry (for capped-risk strategies)
Maximum profitThe highest possible P&L from the strategy, in rupees
At underlying priceThe underlying price range over which maximum profit is achieved
Maximum lossThe largest possible loss, in rupees (may be “unlimited” for naked short positions)
Net premiumThe net premium collected (positive) or paid (negative) at initiation

Using breakevens for strategy selection: for a short straddle on Nifty with a lower breakeven at 23,200 and upper breakeven at 24,800, the underlying must stay within this 1,600-point range by expiry for the trade to be profitable. Compare this range to historical volatility and upcoming event risk to judge whether the range is realistic.

Maximum loss for defined-risk strategies: for an iron condor, maximum loss is the difference between the long and short strikes minus the net premium received, multiplied by the lot size. The payoff chart shows this as a flat loss zone on both sides beyond the long option strikes.

Use the scenario slider

Sensibull provides a scenario tool (labelled “Days to expiry slider,” “Scenario,” or “What-if” depending on the version) that allows you to move the current P&L line forward in time or change the implied volatility assumption.

Days-to-expiry slider: move the slider to simulate what the current P&L line looks like with fewer days remaining. Useful for seeing how quickly Theta erodes the extrinsic value in a short-premium strategy and at what point the position reaches its maximum profit corridor.

IV slider: change the implied volatility assumption to simulate an IV expansion or contraction event. Moving IV down by 20 percent simulates an IV crush after an event; moving it up simulates an IV spike ahead of news. For a short-Vega strategy (sold straddle), an IV drop improves the current P&L; for a long-Vega strategy (bought straddle), an IV drop worsens it.

Compare strategy variants

To compare two strategy designs:

  1. Build the first strategy in Sensibull and note the key statistics: breakeven distances, max profit, max loss, net premium, and net Delta/Theta/Vega.
  2. Modify the strategy (change strikes or leg types) or open a second Sensibull session in a separate browser tab.
  3. Compare the two payoff charts side by side.

Common comparisons:

  • Short straddle vs iron condor: the iron condor sacrifices some max profit (due to the cost of long wings) but caps maximum loss at a defined level. The payoff chart visually shows this trade-off.
  • ATM strangle vs OTM strangle: a tighter OTM strangle has a higher max profit but narrower breakeven range; a wider OTM strangle has a lower max profit but a wider safe zone.
  • Bull call spread at different spreads: a narrower spread (closer strikes) has a lower max profit but costs less in premium; a wider spread has a higher max profit but requires more capital.

What the payoff chart does not show

The payoff chart shows theoretical P&L under idealised assumptions. It does not model:

  • Path-dependence: the P&L path during the life of the trade, which affects decisions about partial profit-taking or stop-loss.
  • Bid-ask spread on entry and exit: real entry and exit prices are at the bid or ask, not the mid-price used in the chart’s theoretical calculations.
  • Liquidity risk: if the underlying gaps through the breakeven at open, slippage on exit can be significant.
  • Early exercise risk for American-style stock options: the model assumes European-style exercise; for stock options that are deep ITM, early exercise may change the effective P&L.

Use the payoff chart as a planning tool, not a guarantee of outcome.

What can go wrong

  • Confusing current P&L line with at-expiry line. The current P&L line (dashed) is not the at-expiry outcome; it reflects today’s option pricing. A short premium position may show “paper profit” on the current line when the underlying is within breakevens, but this profit is not realised until the options expire or are closed.
  • Ignoring the gap between breakevens and current spot. A strategy with breakevens very close to the current spot may look profitable in the chart but has very little room for the underlying to move. Always note the breakeven-to-spot distance relative to expected volatility.
  • Treating max profit as realistic. For short premium strategies, the maximum profit (achieved only if the underlying closes exactly at or near the sold strike at expiry) is a mathematical ceiling; in practice, the trade is usually closed before expiry for a portion of the max profit.
  • Not adjusting for lot size. Sensibull’s P&L chart reflects the full position in rupees based on the lot size entered. If you change the lot size after building the strategy, confirm the chart has updated before drawing conclusions.

References

  1. Black, F. and Scholes, M. (1973). “The Pricing of Options and Corporate Liabilities.” Journal of Political Economy, 81(3), 637–654.
  2. Sensibull help centre, “How to read the payoff chart”, sensibull.com/help.
  3. Zerodha Varsity, Options Strategies module, zerodha.com/varsity.
  4. SEBI Circular SEBI/HO/MRD/MRD-PoD-3/P/CIR/2024/120 dated October 2024, Rationalisation of weekly index derivatives contracts.
  5. Hull, J.C. (2021). Options, Futures, and Other Derivatives (11th ed.). Pearson.
  6. SEBI Circular SEBI/HO/MRD/DP/CIR/P/2018/67 dated 11 April 2018, Physical settlement of stock derivatives.

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