I try to calculate margin for BANKNIFTY30NOV43400CE. But I get the following error "GeneralException: error computing charges: could not get instrument details : instrument not found: NFO:BANKNIFTY30NOV43400CE"
@sumegh20 how did you get the tradingsymbol of BANKNIFTY30NOV43400CE?
If you look up the instruments list for banknifty NFO instruments with 2023-11-30 expiry you get instruments with the 'BANKNIFTY23NOV' prefix.
So the symbolname for the instrument you are searching for should be BANKNIFTY23NOV43400CE and not BANKNIFTY30NOV43400CE
Also your screenshot the last line shows "instrument not found: NFO:BANKNIFTY22NOV43500CE" 22NOV??? That's last year.
As I have said in other threads before, do not form the symbolnames for NFO instruments using your own logic. What you should do instead is use the instruments list as source of truth and do the following steps: 1. First have a clear understanding of which underlying you want the symbolname for - in this case it is banknifty. 2. Have the relevant expiry date - in this case it is 2023-11-30 3. Download the latest instrument list and parse it for NFO instruments for Banknifty for 2023-11-30
Which will give you all banknifty instruments for NFO options for that expiry. Something like >$ cat instrumentlist.csv | grep NFO-OPT | grep '"BANKNIFTY"' | grep 2023-11-30 | grep 43400 -A10 -B10 14913538,58256,BANKNIFTY23NOV42900CE,"BANKNIFTY",0,2023-11-30,42900,0.05,15,CE,NFO-OPT,NFO 14913794,58257,BANKNIFTY23NOV42900PE,"BANKNIFTY",0,2023-11-30,42900,0.05,15,PE,NFO-OPT,NFO 14914050,58258,BANKNIFTY23NOV43000CE,"BANKNIFTY",0,2023-11-30,43000,0.05,15,CE,NFO-OPT,NFO 14914818,58261,BANKNIFTY23NOV43000PE,"BANKNIFTY",0,2023-11-30,43000,0.05,15,PE,NFO-OPT,NFO 14915074,58262,BANKNIFTY23NOV43100CE,"BANKNIFTY",0,2023-11-30,43100,0.05,15,CE,NFO-OPT,NFO 14915330,58263,BANKNIFTY23NOV43100PE,"BANKNIFTY",0,2023-11-30,43100,0.05,15,PE,NFO-OPT,NFO 14915586,58264,BANKNIFTY23NOV43200CE,"BANKNIFTY",0,2023-11-30,43200,0.05,15,CE,NFO-OPT,NFO 14915842,58265,BANKNIFTY23NOV43200PE,"BANKNIFTY",0,2023-11-30,43200,0.05,15,PE,NFO-OPT,NFO 14916098,58266,BANKNIFTY23NOV43300CE,"BANKNIFTY",0,2023-11-30,43300,0.05,15,CE,NFO-OPT,NFO 14916354,58267,BANKNIFTY23NOV43300PE,"BANKNIFTY",0,2023-11-30,43300,0.05,15,PE,NFO-OPT,NFO 14916610,58268,BANKNIFTY23NOV43400CE,"BANKNIFTY",0,2023-11-30,43400,0.05,15,CE,NFO-OPT,NFO 14916866,58269,BANKNIFTY23NOV43400PE,"BANKNIFTY",0,2023-11-30,43400,0.05,15,PE,NFO-OPT,NFO 14917122,58270,BANKNIFTY23NOV43500CE,"BANKNIFTY",0,2023-11-30,43500,0.05,15,CE,NFO-OPT,NFO 14917378,58271,BANKNIFTY23NOV43500PE,"BANKNIFTY",0,2023-11-30,43500,0.05,15,PE,NFO-OPT,NFO 14917890,58273,BANKNIFTY23NOV43600CE,"BANKNIFTY",0,2023-11-30,43600,0.05,15,CE,NFO-OPT,NFO 14918146,58274,BANKNIFTY23NOV43600PE,"BANKNIFTY",0,2023-11-30,43600,0.05,15,PE,NFO-OPT,NFO 14918402,58275,BANKNIFTY23NOV43700CE,"BANKNIFTY",0,2023-11-30,43700,0.05,15,CE,NFO-OPT,NFO 14918658,58276,BANKNIFTY23NOV43700PE,"BANKNIFTY",0,2023-11-30,43700,0.05,15,PE,NFO-OPT,NFO 14918914,58277,BANKNIFTY23NOV43800CE,"BANKNIFTY",0,2023-11-30,43800,0.05,15,CE,NFO-OPT,NFO 14919170,58278,BANKNIFTY23NOV43800PE,"BANKNIFTY",0,2023-11-30,43800,0.05,15,PE,NFO-OPT,NFO 14919426,58279,BANKNIFTY23NOV43900CE,"BANKNIFTY",0,2023-11-30,43900,0.05,15,CE,NFO-OPT,NFO 14919682,58280,BANKNIFTY23NOV43900PE,"BANKNIFTY",0,2023-11-30,43900,0.05,15,PE,NFO-OPT,NFO
This is how I do it. I base it off the expiry date. Monthly expiry for banknifty is the last Thursday of the month - period. Once you have this, all other expiries for the month are weekly expiries. This logic should apply to any instrument in NFO-OPT. For banknifty in particular, another telling sign is the day of week. Weekly expiry falls on a "wednesday". Monthly expiry falls on the "last thursday" of the month.
So get the date first and work backwards from that. Works fine for me.
@sumegh20 you need to develop your own logic for extracting that information.
If I were to do it, 1. One option would be to have the instrument list as a json file and do a json search for matching parameters. 2. Another way is to read the instrument list and generate a custom lookup table using python dictionary or using redis where you give the key as <symbol>:<YYYYMMDD>:<Strikeprice> and the <symbolname> as the value. So when you do something like rediscli>get BANKNIFTY:20231206:43700 It will return "BANKNIFTY23D0643700" and then you can append the CE or PE.
This will help you get the correct symbolname. These are just two methods. Others may come up with different ideas to achieve the same objective. I already use the second method to create symbolname to instrumenttoken mapping and a reverse instrumenttoken to symbolname mapping for my use. I use that basically for handling ticks which contain the instrument token and I want to determine the corresponding symbolname and it works like a charm.
No idea bout the basket_order_margins API as I have never used it.
Image link
If you look up the instruments list for banknifty NFO instruments with 2023-11-30 expiry you get instruments with the 'BANKNIFTY23NOV' prefix.
So the symbolname for the instrument you are searching for should be BANKNIFTY23NOV43400CE and not BANKNIFTY30NOV43400CE
Also your screenshot the last line shows "instrument not found: NFO:BANKNIFTY22NOV43500CE"
22NOV??? That's last year.
As I have said in other threads before, do not form the symbolnames for NFO instruments using your own logic.
What you should do instead is use the instruments list as source of truth and do the following steps:
1. First have a clear understanding of which underlying you want the symbolname for - in this case it is banknifty.
2. Have the relevant expiry date - in this case it is 2023-11-30
3. Download the latest instrument list and parse it for NFO instruments for Banknifty for 2023-11-30
Which will give you all banknifty instruments for NFO options for that expiry. Something like
>$ cat instrumentlist.csv | grep NFO-OPT | grep '"BANKNIFTY"' | grep 2023-11-30 | grep 43400 -A10 -B10
14913538,58256,BANKNIFTY23NOV42900CE,"BANKNIFTY",0,2023-11-30,42900,0.05,15,CE,NFO-OPT,NFO
14913794,58257,BANKNIFTY23NOV42900PE,"BANKNIFTY",0,2023-11-30,42900,0.05,15,PE,NFO-OPT,NFO
14914050,58258,BANKNIFTY23NOV43000CE,"BANKNIFTY",0,2023-11-30,43000,0.05,15,CE,NFO-OPT,NFO
14914818,58261,BANKNIFTY23NOV43000PE,"BANKNIFTY",0,2023-11-30,43000,0.05,15,PE,NFO-OPT,NFO
14915074,58262,BANKNIFTY23NOV43100CE,"BANKNIFTY",0,2023-11-30,43100,0.05,15,CE,NFO-OPT,NFO
14915330,58263,BANKNIFTY23NOV43100PE,"BANKNIFTY",0,2023-11-30,43100,0.05,15,PE,NFO-OPT,NFO
14915586,58264,BANKNIFTY23NOV43200CE,"BANKNIFTY",0,2023-11-30,43200,0.05,15,CE,NFO-OPT,NFO
14915842,58265,BANKNIFTY23NOV43200PE,"BANKNIFTY",0,2023-11-30,43200,0.05,15,PE,NFO-OPT,NFO
14916098,58266,BANKNIFTY23NOV43300CE,"BANKNIFTY",0,2023-11-30,43300,0.05,15,CE,NFO-OPT,NFO
14916354,58267,BANKNIFTY23NOV43300PE,"BANKNIFTY",0,2023-11-30,43300,0.05,15,PE,NFO-OPT,NFO
14916610,58268,BANKNIFTY23NOV43400CE,"BANKNIFTY",0,2023-11-30,43400,0.05,15,CE,NFO-OPT,NFO
14916866,58269,BANKNIFTY23NOV43400PE,"BANKNIFTY",0,2023-11-30,43400,0.05,15,PE,NFO-OPT,NFO
14917122,58270,BANKNIFTY23NOV43500CE,"BANKNIFTY",0,2023-11-30,43500,0.05,15,CE,NFO-OPT,NFO
14917378,58271,BANKNIFTY23NOV43500PE,"BANKNIFTY",0,2023-11-30,43500,0.05,15,PE,NFO-OPT,NFO
14917890,58273,BANKNIFTY23NOV43600CE,"BANKNIFTY",0,2023-11-30,43600,0.05,15,CE,NFO-OPT,NFO
14918146,58274,BANKNIFTY23NOV43600PE,"BANKNIFTY",0,2023-11-30,43600,0.05,15,PE,NFO-OPT,NFO
14918402,58275,BANKNIFTY23NOV43700CE,"BANKNIFTY",0,2023-11-30,43700,0.05,15,CE,NFO-OPT,NFO
14918658,58276,BANKNIFTY23NOV43700PE,"BANKNIFTY",0,2023-11-30,43700,0.05,15,PE,NFO-OPT,NFO
14918914,58277,BANKNIFTY23NOV43800CE,"BANKNIFTY",0,2023-11-30,43800,0.05,15,CE,NFO-OPT,NFO
14919170,58278,BANKNIFTY23NOV43800PE,"BANKNIFTY",0,2023-11-30,43800,0.05,15,PE,NFO-OPT,NFO
14919426,58279,BANKNIFTY23NOV43900CE,"BANKNIFTY",0,2023-11-30,43900,0.05,15,CE,NFO-OPT,NFO
14919682,58280,BANKNIFTY23NOV43900PE,"BANKNIFTY",0,2023-11-30,43900,0.05,15,PE,NFO-OPT,NFO
Monthly expiry for banknifty is the last Thursday of the month - period. Once you have this, all other expiries for the month are weekly expiries. This logic should apply to any instrument in NFO-OPT.
For banknifty in particular, another telling sign is the day of week. Weekly expiry falls on a "wednesday". Monthly expiry falls on the "last thursday" of the month.
So get the date first and work backwards from that. Works fine for me.
Underlying: BankNifty
Expiry date: 6th DEC 2023
Strike: 43700
Option type: CE
Transaction type: SELL
What should be my trading symbol, and how should I call the basket_order_margins API?
If I were to do it,
1. One option would be to have the instrument list as a json file and do a json search for matching parameters.
2. Another way is to read the instrument list and generate a custom lookup table using python dictionary or using redis where you give the key as
<symbol>:<YYYYMMDD>:<Strikeprice>and the<symbolname>as the value.So when you do something like
rediscli>get BANKNIFTY:20231206:43700It will return "BANKNIFTY23D0643700" and then you can append the CE or PE.
This will help you get the correct symbolname.
These are just two methods. Others may come up with different ideas to achieve the same objective.
I already use the second method to create symbolname to instrumenttoken mapping and a reverse instrumenttoken to symbolname mapping for my use. I use that basically for handling ticks which contain the instrument token and I want to determine the corresponding symbolname and it works like a charm.
No idea bout the basket_order_margins API as I have never used it.