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Top five companies lose ₹1 lakh crore in market cap

The combined market valuation of the top five companies declined by ₹1 lakh crore last week, with TCS losing ₹34,263.28 crore. Reliance Industries and State Bank of India also faced significant losses, contributing to a bearish trend in domestic equities.

after close1 source ↓written by the desknot a recommendation

last week
₹1 lakh crore
which lost
₹34,263.28 crore
₹31,869.13 crore
₹25,891.88 crore
0.62%

The combined market valuation of the top five firms fell by ₹1 lakh crore last week, primarily driven by TCS, which lost ₹34,263.28 crore. Other notable declines included Reliance Industries at ₹31,869.13 crore and State Bank of India at ₹25,891.88 crore.

This bearish trend reflects a broader decline in domestic equities, with the BSE Sensex down 0.62% and the NSE Nifty down 0.83%.

Not investment advice. For informational purposes only.

OI Charts is not a SEBI-registered investment adviser or research analyst. This bulletin was written by the OI Charts desk from the public sources listed here. It is commentary on market conditions, not a basis for any investment decision and not a recommendation to buy or sell any security. Prices as of 17 Aug 2026, 16:09 IST.

Sourcesnews.google.com

Read inENहिंతెमराதગુ

The market after the news

TCS closed −1.4% on the day of the news, from ₹2,313.20 to ₹2,280.00; Nifty −0.6% over the same session; futures OI +1.2%.

Bulletin at 16:09 IST on 17 Aug 2026. Every change is measured from ₹2,313.20, the last close before it, on 17 Aug. Nifty 50 is measured over the same sessions.

  • TCS close ₹
  • Nifty 50, rebased to the close before the news
  • close before the news
  • above it
  • below it
  • futures OI, lots
TCS closes around the bulletin against the close before the news, with Nifty 50 rebased to it202723132599axis spans 28%before the news · 17 Aug2313Nifty 50TCSbulletinD0+1+3+511 Aug21 Aug1 SeptFutures open interest, lotspeak 1.6 LReference close ₹2,313.20. 16 sessions from 11 Aug to 1 Sept; the price axis spans 28 percent.
price axis fixed at 4 × the 14-session true range around the close before the news · values printed at each marked session
Closes after the news against the close before it, with Nifty 50 over the same span
SessionClose ₹Change %Nifty %
Before17 Aug₹2,313.20basebase
On the day18 Aug₹2,280.00▼ −1.4%▼ −0.6%−0.9 pp difference
+1 session19 Aug₹2,289.00▼ −1.1%▼ −0.9%−0.2 pp difference
+3 sessions21 Aug₹2,302.00▼ −0.5%▼ −0.1%−0.3 pp difference
+5 sessions25 Aug₹2,296.20▼ −0.7%▲ +0.2%−0.9 pp difference
Gap at the open, % · ₹
▼ −0.6%−13.19 on 18 Aug
Day's range, % · ₹
1.2%≈ 27 high to low
Volume on the day
0.50×the 20-session average
Futures OI on the day
▲ +1.2%+1,900 lots · short build-up · price −1.4%
Futures OI open, lots
1.5 L18 Aug · 25 Aug expiry
Futures premium, ₹
+8.90+0.4% to spot
Puts per call, by OI
0.58from 0.61 the session before
Max pain
2,360from 2,400 the session before

Source NSE UDiFF bhavcopy · TCS on the desk →

Thread · TCSAll TCS bulletins →

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