Markets: A Rigorous Course

Facts that change

Core about 5 min
Fact Value As of Source
Normal market hours 09:15–15:30 IST 2026-11-06 NSE/CMTR/74969; SEBI circular 15 Oct 2026
Pre-open structure 09:00–09:15; market and limit orders to 09:05, limit only to a random close 09:08–09:10; matching to 09:12 from 2026-09-07 NSE circular NSE/CMTR/74969, 1 Jul 2026 (fetched 2026-11-06)
Closing auction Live from 2026-08-03 (F&O stocks, 15:15–15:35); re-timed to 15:30–15:40 with post-close 15:50–16:00 from 2026-12-07 2026-11-06 SEBI circulars 16 Jan 2026 and 15 Oct 2026 (fetched 2026-11-06)
Derivatives expiry settlement Last 30 min of continuous trading: index from constituents' VWAP; stocks on VWAP across exchanges from 2026-12-07 SEBI circular 15 Oct 2026, para 4.9 (fetched 2026-11-06)
Retail algo framework Exchange-tagged API orders, no open APIs, static IP, registration above the OPS threshold all brokers from 2026-04-01 SEBI circulars 4 Feb 2025 and 30 Sep 2025 (fetched 2026-11-06)
Settlement cycle T+1 (all equities since 2023-01-27); optional T+0 for up to top 500 stocks 2026-11-06 SEBI circulars 7 Sep 2021, 21 Mar 2024, 10 Dec 2024
STT Delivery 0.1% both sides; intraday 0.025% sell; futures 0.05% sell; options 0.15% of premium sell, 0.15% of intrinsic on exercise from 2026-04-01 Finance Act, 2026; NSE circular NSE/FATAX/73524, 31 Mar 2026 (fetched 2026-11-06)
NSE transaction charges Equity 0.00307%; futures 0.00183%; options 0.03553% of premium from 2026-03-01 NSE circular NSE/FA/73061, 27 Feb 2026 (fetched 2026-11-06)
Stamp duty Delivery 0.015%; intraday 0.003%; futures 0.002%; options 0.003% (buy side) 2026-11-06 Indian Stamp Act, 1899 as amended by the Finance Act, 2019 (verify with the exchange)
SEBI fee; GST ₹10 per crore; 18% 2026-11-06 SEBI (Payment of Fees) (Amendment) Regulations, 2019; GST on financial services (verify on cbic-gst.gov.in)
DP charge (typical) ₹15.34 per scrip per sell day 2026-11-06 Typical broker charge sheet; set your own
STCG / LTCG on listed equity 20% / 12.5% above ₹1.25 lakh transfers from 2024-07-23 Finance (No. 2) Act, 2024; see M00 · 0.7 (canonical tax rules and section numbers)
Income-tax law Income-tax Act, 2025 in force from 2026-04-01 Act text on incometaxindia.gov.in; section mapping in M00 · 0.7.1
Index lot sizes Nifty 65, Bank Nifty 30 2026-11-05 NSE circular NSE/FAOP/70616 (3 Oct 2025); NSE F&O bhavcopy
Weekly expiries Nifty (NSE) Tuesday; Sensex (BSE) Thursday since 2025-09-01 SEBI circular 26 May 2025; NSE/FAOP/68589 (17 Jun 2025)
MWCB levels 10% / 15% / 20% of Nifty or Sensex since 2001-07-02 SEBI circular June 2001 (later amendments: verify with the exchange)
Nifty 50 base 1,000 on 1995-11-03; free-float since 2009-06-26 2026-11-06 NSE Indices factsheet
SEBI FY26 F&O study 87.7% of individuals lost; net loss ₹91,685 crore released 2026-08-20 SEBI PR 50/2026 and study PDF (figures via summaries; PDF text not machine-extractable)
SEBI FY23 intraday study 71% lost; costs +57% of losses for loss-makers released 2024-07-24 SEBI PR 13/2024

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