Dear SEBI Regulators, @Sebi_india @FinMinIndia
First, my appreciation to SEBI.
SEBI has done a tremendous job over the years in building a safer, more transparent and better-regulated market. Without SEBI's efforts, our capital markets would not have reached where they are today.
This is precisely why I believe SEBI will address the CAS vulnerability too.
On August 13, Sensex weekly expiry, SEBI itself found prima-facie manipulative trading during CAS.
Copthall Mauritius placed aggressive buy orders at +3% across Sensex constituents. Mansi Share & Stock Broking placed large sell orders at 1%–3% below reference prices and subsequently cancelled almost all of them.
SEBI found that these orders influenced the indicative equilibrium price, while their F&O positions provided the economic incentive.
And now, on the August 27 monthly expiry, we saw another extraordinary CAS episode.
Sensex plunged nearly 2,000 points within minutes, while a Bankex put option reportedly jumped by 14,700% during the CAS window. Similar large orders near the 3% band were visible across Bankex and other index constituents.
I am not saying the August 27 episode is already proven manipulation. I am saying it deserves investigation.
Two expiry episodes. Similar concerns. In just a few weeks.
This is exactly the vulnerability I am talking about.
The market can trade in a tight range for hours, but if concentrated orders can materially influence the CAS close for a few minutes, the derivative payoff linked to that closing price can be enormous.
Look at NYSE. Its closing auction averages around $43 billion a day, sitting on top of an enormous, highly liquid cash market. US listed options can represent trillions of dollars of notional exposure.
The point isn't to compare the numbers directly.
The point is the depth of the underlying cash market supporting the closing price.
If our CAS liquidity is relatively thin compared with the derivative exposure linked to it, we are leaving a vulnerability open.
Let us address this vulnerability.
We are seeing the problem on expiry days. Weekly or monthly, it doesn't matter.
Simple solution: On expiry days, don't run CAS. Continue with the old VWAP-based closing price.
Let CAS build genuine depth on non-expiry days. Once it becomes so deep and liquid that a few participants cannot meaningfully influence the closing price, bring it back on expiry days.
Think about the new income-tax regime. The government allowed the old regime and new regime to coexist, giving participants time to understand and adapt.
Here, a proven mechanism that had operated for years, despite its limitations, was replaced with a new mechanism that has already demonstrated serious vulnerabilities.
Test it. Measure it. Then decide.
SEBI has protected the integrity of our markets for decades. I have tremendous respect for that work.
I am only asking SEBI to apply that same protection to this new mechanism before the vulnerability becomes a bigger problem.
SEBI needs to look at the incentive, liquidity and transition risk, not just the mechanism.
I hope @PMOIndia will also take note of this concern and ensure that the transition to CAS does not create an unintended vulnerability in our markets.
Jai Hind 🇮🇳
#Srinivega
Dearest @AshwiniVaishnaw ji,
I am asking repeatedly. This is very very important.
Why should a RAC passenger bear full charge for 50% of a side lower seat? Isn't it unfair?
Once the chart is prepared, Railways must refund 50% of the fare with interest for RAC passengers. The same source of payment can be used for the refund.
Pls implement this immediately. I see many ladies and senior citizens who travel by RAC, without sleep and they pay full charge.
If any of you reading this feel that this should be implemented immediately, comment with your thoughts and share until Railways makes it a fair deal for passengers.
This is long long overdue.
On behalf of Indian Passengers,
#FI
🧵 I’m giving away the **exact playbook** that took me from 25L → 3 Crore + in < 4 years.
DM’d only to people who sent “playbook” , **last opened DM at 21K**.
Next batch drops at **25K**.
Want in?
✅ Follow
✅ RT this thread
✅ Reply “PLAYBOOK”
First 500 who do all 3 get the **“When to Make a Directional Bet” cheat-sheet** (worth $97).
Let’s break 25K tonight. 📈
#Srinivega
PS : Options Trading is injurious to free mind!
🚨Bollinger Band Squeeze Breakout Scan
✅ Strong price momentum
✅ Volume confirmation
✅ Tight pullbacks near highs
✅ High Accuracy
🔁 Just #Repost and #Follow
Reply "Hi" — We’ll send you the screener settings for free.