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Top firms lose ₹1 lakh crore in market value; TCS hit hardest

pre-market1 source ↓written by the desknot a recommendation

last week
₹1 lakh crore
largest drop
₹34,263.28 crore
falling
489.92 points
amid rising crude
204.65 points
now stands
₹8,53,506.85 crore

The combined market valuation of five of the top-10 most valued firms declined by ₹1 lakh crore last week, with TCS facing the largest drop of ₹34,263.28 crore. This decline is attributed to bearish trends in equities, with the BSE Sensex falling 489.92 points and the NSE Nifty dropping 204.65 points amid rising crude oil prices and geopolitical uncertainties.

• TCS market valuation now stands at ₹8,53,506.85 crore

• Other firms like Reliance, HDFC Bank, and ICICI Bank also saw significant losses.

• Conversely, Bharti Airtel and Bajaj Finance gained in valuation, adding ₹55,149.45 crore collectively.

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, 07:05 IST.

Sourcesnews.google.com

Read inENहिंతెमराதગુ

The market after the news

TCS closed −2.0% on the day of the news, from ₹2,361.00 to ₹2,313.20; Nifty −0.3% over the same session; futures OI +1.0%.

Bulletin at 07:05 IST on 17 Aug 2026. Every change is measured from ₹2,361.00, the last close before it, on 14 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 it206923612653axis spans 28%before the news · 14 Aug2361Nifty 50TCSbulletinD0+1+3+510 Aug20 Aug31 AugFutures open interest, lotspeak 1.6 LReference close ₹2,361.00. 16 sessions from 10 Aug to 31 Aug; 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 %
Before14 Aug₹2,361.00basebase
On the day17 Aug₹2,313.20▼ −2.0%▼ −0.3%−1.7 pp difference
+1 session18 Aug₹2,280.00▼ −3.4%▼ −0.9%−2.6 pp difference
+3 sessions20 Aug₹2,298.00▼ −2.7%▼ −0.6%−2.1 pp difference
+5 sessions24 Aug₹2,284.10▼ −3.3%▼ −0.6%−2.7 pp difference
Gap at the open, % · ₹
▼ −0.4%−9.92 on 17 Aug
Day's range, % · ₹
2.1%≈ 51 high to low
Volume on the day
0.62×the 20-session average
Futures OI on the day
▲ +1.0%+1,400 lots · short build-up · price −2.0%
Futures OI open, lots
1.5 L17 Aug · 25 Aug expiry
Futures premium, ₹
+11.60+0.5% to spot
Puts per call, by OI
0.61from 0.62 the session before
Max pain
2,400from 2,400 the session before

Source NSE UDiFF bhavcopy · TCS on the desk →

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