Gann Square of Nine: A Worked Nifty Support and Resistance Guide

What the Gann Square of Nine Actually Does

Gann Square of Nine maps a reference price to numerical levels using a square-root adjustment. A spiral of numbers starts at 1 and winds outwards. In the convention below, an angle determines how much is added to or subtracted from the root before squaring it again. The result is a candidate support or resistance reference, without a proven predictive edge.

GannTrader shows a full 360-degree revolution as (square root of 49 + 2) squared = 81. Under the unit-price convention here, the root adjustment is angle / 180. Thus 45 degrees adds 0.25, 90 adds 0.5, 135 adds 0.75, and 180 adds 1. Lower levels subtract the adjustment. Platform price units and factors can change results.

Choose the exact reference instrument and scaling. An index level is not an option premium or a futures execution price. A mechanical level does not establish an advantage.

The Core Formula in Plain Steps

For positive price P and angle A, the upper reference is (square root of P + A/180) squared. The lower reference is (square root of P - A/180) squared, while the adjusted root remains positive. Keep full precision and round final levels only.

• Step 1: Pick a reference price P. For intraday use the opening price or previous close of Nifty, Bank Nifty or your stock.
• Step 2: Compute the square root of P.
• Step 3: For resistance, add the angle fraction. For support, subtract it.
• Step 4: Square the adjusted root to convert back to a price.
• Step 5: Repeat for several angles to build a full ladder of levels above and below price.

Full Worked Nifty Example: Building the Support and Resistance Ladder

Use a fictional Nifty reference of 23,500. Its root is approximately 153.297097. The table uses the full root and rounds each final level to two decimals.

In this example, the 90-degree adjustment is 0.5. The resulting upper and lower references are 23,653.55 and 23,346.95. At 180 degrees, adjustment is 1, giving 23,807.59 and 23,194.41. These are calculated references, not future targets.

The ladder marks numerical references. Price can pass several without reacting; a cardinal angle does not establish stronger support or a success probability.

A Separate Fictional Futures Trade and Costs

For a separate fictional futures trade, assume entry 23,470, exit 23,650 and 65 underlying units. Gain is 180 points, or Rs 11,700 gross. These are independent execution assumptions, not spot prices automatically available in a future.

NSE/FATAX/73524, dated 31 March 2026, sets futures-sale STT at 0.05% from 1 April 2026. Fictional sale turnover is 23,650 x 65 = Rs 1,537,250; STT is Rs 768.625 before rounding. Other charges remain additional. Use the actual remaining charges to calculate a net result.

Bank Nifty Example With Options Premiums

For a separate fictional Bank Nifty reference of 51,200, the root is approximately 226.274170. Upper references are 51,426.52 at 90 degrees and 51,653.55 at 180 degrees. Independently assume a monthly 51,200 call at premium 180 and quantity 30 units. Outlay is 180 x 30 = Rs 5,400.

Assume a later premium of 270, independent of the index ladder. Proceeds are 270 x 30 = Rs 8,100; gross gain is (270 - 180) x 30 = Rs 2,700. Current option-sale STT at 0.15% is Rs 12.15; other costs are additional. The option leg can lose the Rs 5,400 premium plus charges.

• Confirm the selected contract quantity rather than using an old multi-index lot table.
• Checked 16 Oct 2026: Nifty weekly expiries follow Tuesday with the trading-holiday adjustment. Bank Nifty has monthly and quarterly options without weeklies.
• Futures and short options require margin; intended stops do not guarantee loss caps.

Choosing the Right Reference Price

Possible reference rules include the previous close or current open. Choose the rule and price-unit setting before evaluating reactions. A level available from the first quote is a calculated reference, not validated support.

Define the anchor rule before seeing the outcome. Choosing a convincing swing after observing the reaction biases the assessment. No reference price is claimed to ensure reliable levels.

Gann Square of Nine Versus Common Indicators

Gann, floor pivots and Fibonacci methods produce price references from different inputs. The table compares how they are constructed. Their mechanical calculations do not establish that price will react or that one is more accurate.

An overlapping pivot, Fibonacci reference or round number is extra context, not independent proof of a higher success rate. Define any combined rule consistently.

Confirming the Signal Before You Commit Capital

A method can add a completed candle or momentum condition after price reaches a level. RSI, the relative strength index, describes recent price momentum. These are extra rules to evaluate, not independent proof that a Gann level will hold.

• Record the completed candle condition and later executable price.
• Specify overlap filters without guaranteed reliability.
• Record momentum context consistently.
• Set intended stop and size before entry.

Price can pass several levels without reacting. A confirmation rule can also fail, so record those failures rather than treating momentum as a reason to exclude them from the method's record.

Taxes and Rules Indian Traders Must Know

Keep actual transactions, quantities, charges and settlement records. The geometric level does not determine tax classification or deductible expenses.

Ask a qualified adviser to confirm reporting for the actual instrument and dates. No universal capital-gains rate or take-home figure is inferred here.

A Repeatable Daily Routine

A repeatable record states the reference price, scaling and chosen angles before observing the result. The example ladder includes 45, 90, 135 and 180 degree references on both sides. Any later entry condition and actual execution belong in the same record.

• Before the session: calculate levels from the stated reference and scaling.
• At the open: record price relative to those levels.
• During the session: record whether the defined confirmation condition occurs.
• Risk: compare actual instrument quantity and intended stop distance with the chosen budget.
• After the session: preserve reactions, failures and actual executions.

A log preserves both reactions and failures under consistent rules. It does not by itself turn the spiral into a proven edge.

State the anchor, instrument, price-unit convention and platform settings when sharing levels. Different scaling can produce different ladders.

Sources

• GannTrader: Square-of-Nine construction (checked 16 Oct 2026)
• Optuma: Price units and factors (checked 16 Oct 2026)
• NSE: Index option cycles (checked 16 Oct 2026)
• NSE: STT revision (checked 16 Oct 2026)
• NSE Clearing: STT valuation basis (checked 16 Oct 2026)