Unusual volume in India means a stock or ETF on NSE or BSE is trading far more than its own recent average. Indian exchanges treat sudden spikes in price or volume as a trigger for questions, and they publish tools for investors to follow those questions. This page lists the current names, explains what the exchange does about spikes, and covers the record-keeping that cross-border traders need.
What this list shows
The screener flags securities listed in India whose volume is well above their recent average. India data in this widget is often delayed. The widget provider sets how big the jump must be, and a thin stock can qualify on an ordinary day. The filter is mechanical and is not a recommendation, and it includes ETFs without labeling them.
Market list widget by TradingView. U.S. data is usually end-of-day; Canadian and Indian data may be delayed. Lists include stocks and ETFs and are mechanical filters, not recommendations.
How to read it
Think of each row as a question, and work through a short checklist.
- Corporate announcements. Check the company's disclosures on the exchange website for results, deals or other events.
- Clarifications. NSE says that where there is a spurt in price or volume with no major corporate announcement, clarification is sought from the company and the reply is passed to the market. The process runs on pre-decided criteria in coordination with SEBI and other exchanges.
- Surveillance lists. See whether the security appears under an Additional Surveillance Measure.
- Price versus volume. Heavy volume with a price at its daily limit is different from heavy volume with little price change, which can mean large orders being absorbed.
Delivery matters in India. The ASM criteria list a delivery percentage, which compares trades that end in actual share delivery with trades squared off within the day. This list does not show delivery.
What it does not tell you
The list does not identify who traded, whether the news is good, or whether the spike will repeat. A spike can come from results, an index change, a large negotiated trade or promotion of a small stock. Tips that urge you to act fast on a thinly traded stock deserve skepticism. This site does not predict prices.
How NSE handles spikes
Additional Surveillance Measure. NSE says that, together with SEBI, it shortlists securities for the ASM framework on objective criteria. The parameters it lists are high-low variation, client concentration, close-to-close price variation, market capitalization, volume variation, delivery percentage, number of unique PANs and price-to-earnings ratio.
Illiquid securities. NSE's timetable includes call auction sessions for illiquid securities, six sessions of one hour each. In a call auction, orders are collected and matched at one price rather than trading continuously.
Block deals. NSE has two separate block deal windows each day: 8:45 to 9:00 a.m. and 2:05 to 2:20 p.m. India time. Large negotiated trades done in those windows can add to a day's volume without any change in the continuous market, so a spike may not reflect public activity at all.
Trading hours. Normal trading runs from 9:15 a.m. to 3:30 p.m. India time, which is overnight for readers in Chicagoland, so anything you read here is already a day old by the time you see it.
Tax notes for investors
- Every trade needs a rupee-to-dollar conversion. The IRS says U.S. returns must be in dollars, to use the rate in effect when you receive, pay or accrue an item, and it accepts a posted rate used consistently. Active traders in rupees should save a daily rate source. See our forex rates page for the options.
- Frequent sales and U.S. rates. Sales of securities held one year or less are short-term and are taxed as ordinary income for U.S. taxpayers; see the capital gains guide.
- Foreign account reporting. A demat account in India counts as a foreign financial account for the FBAR, and it can count on Form 8938. For the FBAR, the maximum value during the year is what counts. Our international tax services page explains how we help with this.
- NRIs. SEBI's investor material says NRIs may only do delivery-based transactions in the cash segment and cannot short sell or trade intraday there. Ask your bank and broker how those rules apply to your account.
- For comparison. See the U.S. and Canadian unusual volume pages.
Keep contract notes and statements; see how long to keep tax records.
Frequently asked questions
What is a clarification on price or volume movement?
It is a request by the exchange that a company explain a spurt in its price or volume when no major announcement explains it. NSE publishes the company's response.
Is a block deal the same as a heavy-volume day?
No. A block deal is a large negotiated trade done in a separate exchange window. It can add to the day's volume, but it is not ordinary trading.
Does delivery percentage matter?
It is one of the ASM parameters. A higher share of delivery trades suggests more of the volume resulted in actual transfer of shares, though no single number settles the question.
Do I report every Indian trade on my U.S. return?
If you are subject to U.S. tax, sales of securities generally need reporting with dates, cost and proceeds in dollars. Keep your Indian contract notes and broker statements.
Official sources
- NSE: Additional Surveillance Measure (ASM)
- NSE: Rumour verification and clarification in case of spurt in price or volume
- NSE: Market timings
- SEBI Investor: Investments by NRIs in the Indian securities market
- IRS: Yearly average currency exchange rates
This page is a plain-language summary. The official source controls if there is any difference.
General information only, not tax, legal or accounting advice for your situation. Rules, limits and deadlines change; confirm the current rules with the official source or a qualified professional before you act. Reading this page does not create a professional relationship with CPA Tax Payroll and Accounting Corp.