Sensex mein 2,200 Point ki Girawat aur Recovery, Kirit Somaiya ne SEBI se Probe ki maang ki

27 August ko Sensex ke closing session mein dekhi gayi unusual volatility ne market mechanism par naye sawaal khade kar diye hain. Former BJP MP aur chartered accountant Kirit Somaiya ne SEBI Chairman Tuhin Kanta Pandey ko letter bhejkar is movement ki detailed probe ki maang ki hai.

Somaiya ke mutabik, 27 August ko 3:20 PM se 3:30 PM ke beech Sensex indicative level mein 2,200 points se zyada ki girawat dekhi gayi, jiske baad index ne lagbhag 2,000 points ki recovery bhi ki. Unhone is movement ko unusual batate hue naye Closing Auction Session, yani CAS, ke design par sawaal uthaya.

Yeh development isliye bhi important hai kyunki 27 August ko CAS ke implementation ke baad pehli monthly derivatives expiry thi.

Kirit Somaiya ne CAS par kya sawaal uthaye?

Somaiya ne SEBI se poocha hai ki kya itni sharp volatility CAS framework ki kisi design weakness ka result thi. Unhone yeh bhi sawaal uthaya ki kya is movement ke peeche kisi tarah ki jaanboojhkar activity thi aur kya mechanism ko disrupt karne ki koshish hui.

Unhone SEBI se matter ko casually na lene aur framework design karne wale officials se bhi explanation lene ki maang ki hai.

Somaiya ne Moneycontrol se kaha ki SEBI ko policy ka review karna chahiye aur zarurat padne par ise redraft karna chahiye. Saath hi unhone suspected manipulators ke khilaf probe aur action ki baat kahi.

CAS ko lekar liquidity ka sawaal

SEBI ne Closing Auction Session ko equity cash segment mein closing price discovery ko improve karne ke objective se introduce kiya tha. Yeh framework 3 August 2026 se applicable hua.

CAS ke under eligible stocks mein continuous trading pehle khatam hoti hai aur closing price auction mechanism ke through discover hoti hai.

Somaiya se judi technical note mein concern raise kiya gaya hai ki auction ke dauran agar liquidity kam ho, to relatively chhote order flows bhi indicative closing price par noticeable impact daal sakte hain.

Yeh concern isliye important hai kyunki closing price ka effect sirf ek stock ke last traded value tak limited nahi hota. Closing levels index calculation, mutual fund NAV, passive funds ke tracking aur derivatives settlement jaise areas ko bhi affect kar sakte hain.

SEBI ne CAS ko introduce karte waqt kaha tha ki mechanism ka objective closing price ko collective market consensus ke closer lana aur passive funds ke tracking error ko reduce karna hai.

NSE aur BSE ke beech liquidity ka issue

Technical note mein NSE aur BSE ke separate closing auctions ko lekar bhi concern raise kiya gaya hai.

Agar dono exchanges par order books aur liquidity alag hoti hai, to auction ke equilibrium prices bhi different conditions se influence ho sakte hain.

Report mein pehle CAS day ke auction turnover ka comparison bhi diya gaya hai, jahan NSE par reported turnover BSE ke comparison mein kaafi zyada tha.

Iska main concern yeh hai ki closing benchmark ko reliable banane ke liye sufficient two-sided liquidity zaroori hai.

3 percent band par bhi sawaal

CAS framework mein reference price ke around price band ka provision hai. SEBI ke framework mein CAS ke reference-price mechanism ke saath price-band structure diya gaya hai.

Somaiya se judi technical proposal mein argument diya gaya hai ki relatively thin auction liquidity ke situation mein wide price band se small matched volumes bhi large valuation movements create kar sakte hain.

Example ke taur par agar kisi company ka market capitalisation Rs 5 lakh crore ho, to 3 percent movement theoretically lagbhag Rs 15,000 crore ke market value change ke barabar ho sakta hai.

Isi wajah se proposal mein auction liquidity ke according dynamic aur more conservative band ki possibility par discussion ki gayi hai.

Derivatives expiry ne concern ko aur badhaya

27 August ka movement monthly derivatives expiry ke saath coincide hua.

Expiry days par cash market aur derivatives market ke price relationship ka importance badh jata hai. Agar closing auction mein liquidity thin ho aur derivatives positions simultaneously expire ho rahi hon, to price discovery par additional pressure aa sakta hai.

Isi interaction ko Somaiya ke letter mein review ka important reason bataya gaya hai.

SEBI pehle hi CAS manipulation par action le chuka hai

Yeh development ek aise waqt mein aaya hai jab SEBI CAS se related alleged manipulation par pehle hi enforcement action le chuka hai.

19 August ko SEBI ne Copthall Mauritius Investment Limited aur Mansi Share and Stock Broking Private Limited ke khilaf ex-parte interim order pass kiya tha. Matter 13 August ke Sensex expiry-day CAS trades se related tha.

SEBI ke order ke mutabik surveillance system ne CAS window mein Sensex ke Indicative Equilibrium Price mein teen sharp movements identify kiye. Regulator ne Copthall aur Mansi par alleged price-impacting trades ke through market price discovery ko influence karne ka prima facie concern raise kiya.

SEBI ne dono entities se total lagbhag Rs 3.68 crore ke alleged wrongful gains ko impound karne ka order diya aur unhe securities market access se restrict kiya, pending further examination.

Important point yeh hai ki SEBI ke order mein dono entities ke concert mein act karne ka prima facie evidence nahi bataya gaya tha.

Ab SEBI ke saamne kya sawaal hain?

Somaiya ki demand ke baad focus ab kuch important questions par hai:

1. Kya 27 August ka extreme movement normal auction volatility thi?
2. Kya CAS mein liquidity conditions ko aur strengthen karne ki zarurat hai?
3. Kya expiry days ke liye additional safeguards hone chahiye?
4. Kya price band ko liquidity ke saath dynamically link kiya ja sakta hai?
5. Kya NSE aur BSE ke auction liquidity difference ko address karna zaroori hai?
6. Kya recent CAS-related incidents ke baad framework ka independent review hona chahiye?

Filhaal Somaiya ne investigation aur policy review ki maang ki hai. SEBI ka CAS framework January 2026 ke circular ke basis par introduce hua tha aur 3 August se implement hua.

Isliye 27 August ka episode sirf Sensex ki ek volatile session story nahi hai. Yeh naye closing-price mechanism ki market liquidity, price discovery aur investor protection ke practical test ke roop mein bhi dekha ja raha hai.

Disclaimer

Yeh article available public reports, regulatory documents aur published news reports ke analysis par based hai. Is article mein kisi individual ya entity ke khilaf allegations ko final finding ke roop mein present nahi kiya gaya hai. Jahan regulatory investigation ya alleged manipulation ka reference hai, wahan information ko reported allegations aur regulatory observations ke context mein hi samjha jana chahiye. Investment decisions lene se pehle readers ko official regulatory documents aur qualified financial professionals se independent verification karni chahiye.

References

Primary reference: Moneycontrol report dated August 30, 2026.

Regulatory reference: SEBI Circular on Introduction of Closing Auction Session, dated January 16, 2026.

Regulatory enforcement reference: SEBI interim order relating to alleged manipulative trades during CAS on Sensex expiry.

Additional market reporting: Reuters coverage of SEBI action involving Copthall Mauritius Investment and Mansi Share and Stock Broking.