By Shakti Tiwari — Nifty Option Trader, NISM-Certified (Series-XII), Research Analyst & XGBoost Expert. Research only, not SEBI-registered advice.
Published: 11 Aug 2026, 10:36 AM IST | Market data as of: 11 Aug 2026, 10:36 AM IST (delayed — Yahoo Finance for NSE prices, Coingecko for BTC) | Source: Yahoo Finance (NSE prices, delayed) + Coingecko (BTC) + Google News RSS (news sentiment).
As of 11 Aug 2026, 10:36 AM IST, Nifty 50 is at 24,478 and Bitcoin near $63,977. This scan ranks Nifty 50 constituents by a transparent weighted anomaly score (news negative-sentiment %, volume, sentiment momentum) refreshed live.
Method note: The score is a documented weighted heuristic —
0.5·neg% + 0.3·(vol×10, capped at 100) + 0.2·shock— wherevolis the raw fresh-headline count andshockis a placeholder (currently 0, pending intraday-history integration). It is not a trained XGBoost model and not a price prediction. It flags attention zones only.
Top Anomaly Rankings (Live)
| Rank | Stock | Price ₹ | Neg % | News Vol | Score |
|---|---|---|---|---|---|
| 1 | HDFCBANK | 728 | 100% | 6 | 68.0 |
| 2 | AXISBANK | 1,231 | 100% | 6 | 68.0 |
| 3 | ICICIBANK | 1,424 | 67% | 6 | 51.5 |
| 4 | TCS | 2,435 | 50% | 6 | 43.0 |
| 5 | SBIN | 1,064 | 50% | 6 | 43.0 |
| 6 | ITC | 281 | 33% | 6 | 34.5 |
| 7 | RELIANCE | 1,321 | 17% | 6 | 26.5 |
| 8 | HEROMOTOCO | 5,906 | 17% | 6 | 26.5 |
| 9 | INFY | 1,184 | 0% | 6 | 18.0 |
| 10 | M&M | 3,502 | 0% | 6 | 18.0 |
What The Score Means
- Neg % = share of recent news flagged negative by our sentiment model (Google News RSS headlines classified POSITIVE / NEGATIVE / NEUTRAL).
- News Vol = raw count of fresh headlines (momentum proxy). The score scales it ×10, capped at 100.
- Score = 0.5·neg% + 0.3·(NewsVol×10, capped 100) + 0.2·shock, where shock = 0 today. Higher = bigger anomaly.
- Worked example (top rank): 0.5×neg% + 0.3×60 (6 headlines ×10) + 0.2×0.
How To Use It
Use the anomaly score alongside option-chain OI and max-pain for context; it is one input, not a standalone trigger. A high negative score marks a caution or contrarian zone — not a trade instruction.
Frequently Asked Questions
What is the Nifty 50 anomaly scan?
A daily live ranking of Nifty 50 stocks by news-sentiment anomaly + volume, scored with a transparent weighted (XGBoost-style) heuristic by Shakti Tiwari — not a trained model.
Is this a buy/sell signal?
No. It flags attention zones. Always confirm with price action, option chain and risk stop.
Methodology
Live prices via Yahoo Finance (delayed); news sentiment via Google News RSS; composite score is a transparent weighted model (documented). Research, not advice.
Auto-generated via nse_ai_agent on 11 Aug 2026, 10:36 AM IST.
Disclaimer
Independent research, not investment advice. Consult a SEBI-registered advisor.
About the Author
Shakti Tiwari is a Nifty Option Trader, Research Analyst and XGBoost Expert publishing daily NSE India research.
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