Why is market falling today? Sensex tumbles over 500 points, Nifty below 23,250. 5 factors behind Rs 4 lakh crore wipeout
BSE moved higher.
24 Sept 2026 · ET Stocks, Economic Times Markets
Indian equity benchmark indices Sensex and Nifty fell nearly 1% on Thursday, erasing over Rs 4 lakh crore in BSE market capitalisation. Surging US 10-year Treasury bond yields to 19-year highs, heightened US Fed rate hike expectations, and rising crude oil prices above $102 per barrel triggered a sharp market selloff.
The analysis
BSE reported Rs 4 lakh crore, with movement of 1% attached to those lines. Those are the figures as filed — what moves the price is how they sit against what the market already expected, not their absolute size.
This is an Input cost / crude event. India imports most of its crude, so input costs pass through to margins downstream and to the rupee. Producers and consumers of the same input move in opposite directions.
Because the driver here is macro rather than company-specific, the read-through is to index-level positioning rather than to any single name — correlations tend to rise when the whole market faces the same signal.
Why it matters
- With BSE involved, this carries a regulatory dimension that can outlast the immediate market reaction.
Market context
- This is a market-wide development — its reach goes beyond any single stock.
- The immediate tone of coverage reads negative.