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2,000 Points, No News: India's New Closing Auction
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ticker lesson
Breakdown
0:00lesson
SEBI's auction closing mechanism for FNO stocks
- 2,000 points in minutes on a day with no news
- SEBI changed closing price method in August 2026
- 200 FNO stocks close via 20-minute auction 3:15-3:35
- No 30-minute average anymore
- One book, one price, everything matches
0:35lesson
Thin order book risks and price volatility
- Thin book has no shock absorber
- Sensex close moved hard on August 13th
- SEBI opened formal action against manipulation
- Margin and settlement reference the close
- Priced at level never actually traded
1:15lesson
Visibility of manipulation in order book
- None of it was hidden
- Visible in order book the whole time
- Volume clears where imbalance sits
- Thin depth turns one order into a move
- Not a trade signal, thin books cut both ways
1:55lesson
Learning resources on order book basics
- Want to learn more about SEIS and order book
- Check out free course: Market Microstructure Order Book Basics
- Course available at quantra.quantinsti.com
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