Data to 5 October 2026
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How much speculation is there?

Equity derivatives open interest against market value

5.7%
of NSE market value, Aug 2026

Above its usual range of 1.9% to 3.9%, among the highest readings since 2014. The record is 6.0%, in April 2026. Up from 4.8% a year ago.

2015202020251.0%2.0%4.0%5.0%6.0%6.0%, Apr 2026usual range, 1.9% to 3.9%5.7%2016201820202022202420261.0%2.0%3.0%4.0%5.0%6.0%6.0%, Apr 2026usual range, 1.9% to 3.9%5.7%2016201820202022202420261.0%2.0%3.0%4.0%5.0%6.0%6.0%, Apr 20261.3%, Apr 2020usual range, 1.9% to 3.9%5.7%2016201820202022202420261.0%2.0%3.0%4.0%5.0%6.0%6.0%, Apr 20261.3%, Apr 2020usual range, 1.9% to 3.9%5.7%

What it is. The value of futures and options contracts still open at month end on NSE and BSE, against the value of every NSE-listed company.

How to read it. It measures exposure held, not money paid. It rises when traders carry more positions overnight relative to the size of the market.

Source: NSE business growth Method Data

The numbers

Latest5.7%Aug 2026
A week ago5.1%
A month ago5.1%
A year ago4.8%
Usual range1.9% to 3.9%
Median2.3%
Lowest1.3%1 Apr 2020
Highest6.0%1 Apr 2026
Percentile, full history98
Percentile, last 5 years95

The usual range is the middle half of readings since 2014. A percentile is the share of the 149 readings since 1 Apr 2014 that were below today's. Data: statistics, history (JSON); history as CSV.

To cite: tipsheet, “Equity derivatives open interest against market value”, data to Aug 2026, https://tipsheet.markets/i/oi-to-mcap/

Read it with

Share of cash turnover that ends in delivery 44%usual
Retail investors' share of F&O turnover 26%new series
Index options' share of F&O premium 31%above usual
F&O contracts traded in the month 319.5 crorebelow its record
Cash turnover as a share of market value, annualised 61%usual
NSE cash turnover a session ₹1.1 lakh crbelow its record

the usual range: the middle half of all readingstodayEach line runs from the lowest reading ever to the highest.