What is Basis?

Derivatives BasicsNSE F&O

The difference between the futures price and the spot price of the underlying. In normal market conditions, futures trade at a premium (contango). During high volatility, futures may trade at a discount (backwardation).

Definition

Basis is:

The difference between the futures price and the spot price of the underlying. In normal market conditions, futures trade at a premium (contango). During high volatility, futures may trade at a discount (backwardation).

How Basis Works in NSE Trading

In the context of National Stock Exchange (NSE) derivatives trading, basis is a fundamental concept that every F&O trader should understand. The NSE offers futures and options contracts across 180+ stocks and multiple indices (Nifty 50, Bank Nifty, Finnifty, Midcap Nifty), and basis plays an important role in how these instruments are priced, traded, and analyzed.

Indian options traders use basis analysis alongside other metrics like open interest, implied volatility, PCR, and the Greeks (Delta, Gamma, Theta, Vega) to build a comprehensive view of market conditions and make informed trading decisions.

Basis in Practice

Active F&O traders on NSE incorporate basis into their daily workflow for better risk management and strategy selection. Whether trading weekly Nifty options, Bank Nifty on expiry day, or individual stock options, understanding basis is essential for professional trading.

Pro Tip: Combine basisanalysis with sector-level data and FII/DII positioning for a more complete picture of market dynamics. Arinedge’s platform integrates basis with institutional flow data, volatility analytics, and market regime detection.

Frequently Asked Questions

What is Basis in NSE F&O trading?

The difference between the futures price and the spot price of the underlying. In normal market conditions, futures trade at a premium (contango). During high volatility, futures may trade at a discount (backwardation).

How is Basis used by Indian options traders?

Basis is used by Indian F&O traders to analyze options contracts on NSE and make informed trading decisions. Understanding Basis helps in position sizing, risk management, and strategy selection for the Indian derivatives market.

Where can I find live Basis data?

Live Basis data is available on the NSE website and through Arindge's analytics platform, which sources data directly from NSE feeds every 30 seconds during market hours (9:15 AM - 3:30 PM IST).

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Data sourced from NSE  |  Last verified: June 2026  |  Educational content — not investment advice.