just to add a small observation, margins are a function of volatility and if IVs have increased like VIX is doing in last 3 days, margins would increase irrespective of direction as RBI event approaches.
I’m 99% sure this isn’t the reason in this case. Have been doing the same thing across indices for years, and haven’t faced this. Volatility related margin changes are usually very small, unless we’re talking about Covid times here…
Users in that X thread have said this issue has been there in previous weeks too, and again, only with Mid Cap.
Anyway, upto Zerodha to decide to fix this or not, they have more to lose out here…
Hi @SachinSingh
The clarification to tweet was due to peak snapshot taken during the day and we have listed out the reasons in our article). We send out notifications at End of the day requesting user to fubd the account which can help us in avoiding the short reporting and the penalty.
Sure, will try out at our end and observe if there is anything needs to be fixed. Will keep this thread updated.
Update: There was an issue in considering Underlying price at our RMS vendor, this has been fixed now. Margins are matching across, please let us know your observation as well.
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You are right it might take time to make the MN options more liquid, maybe after we get 5 expires for 5 trading days and the traders get a habit of it.
Today there was decent liquidity. Again. One day before expiry. Once it’s shifted to Monday, I expect more because the immediate previous session is on Friday. It had to compete with bse index.
Yes, the error appears to have been fixed now…
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FYI Revision in expiry day of Nifty Midcap Select F&O contracts from Wednesday to Monday. Read more.
That means there will be no expiry on aug 23rd and 30th ??
Thank you for your service. 
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Yes, it will be preponed to Aug 21 and Aug 28.
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I know
I monitor these changes closely
In the last 3 weeks MIDCPNIFTY options have become extremely volatile, including it’s index. I feel it is possible for bigboys to move this index with lesser money than nifty or bank nifty or even finnifty.
can you please elaborate how it has become more volatile?
How’s the liquidity on non-expiry days?
Not enough on ITM strikes. OTMs are not that bad.
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I would prefer bankex over midcp. Already stopped trading in midcp.
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