InvestorQ : How are strike prices determined for stock options?
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Lavanya Subramanian made post

How are strike prices determined for stock options?

Answer
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2 years ago


Every stock has a pre defined Applicable Step Value (ASV), which will be the gap between the two strikes. Additionally, the number of strikes to be provided for the stock that is ITM, ATM and OTM is also defined by the regulator. Lastly, for each stock the number of additional strikes that may be enabled each day is also determined by the regulator and prescribed from time to time. The table below captures the details for the 204 stocks.

Symbol

Applicable Step value

No. of Strikes Provided In the money - At the money - Out of the money

No of additional strikes which may be enabled intraday

ACC

20

10 -1- 10

10

ADANIENT

5

6 - 1 - 6

6

ADANIPORTS

5

10 -1- 10

10

ADANIPOWER

2.5

5 -1- 5

5

AJANTPHARM

20

10 -1- 10

10

ALBK

1

9 -1- 9

9

AMARAJABAT

20

8 -1- 8

8

AMBUJACEM

5

10 -1- 10

10

APOLLOHOSP

20

10 -1- 10

10

APOLLOTYRE

5

10 -1- 10

10

ARVIND

10

8 -1- 8

8

ASHOKLEY

5

6 -1- 6

6

ASIANPAINT

20

10 -1- 10

10

AUROPHARMA

20

8 -1- 8

8

AXISBANK

10

10 -1- 10

10

BAJAJ-AUTO

50

10 -1- 10

10

BAJFINANCE

50

10 -1- 10

10

BAJAJFINSV

100

10 -1- 10

10

BALKRISIND

20

10 -1- 10

10

BANKBARODA

5

6 -1- 6

6

BANKINDIA

2.5

8 -1- 8

8

BATAINDIA

20

10 -1- 10

10

BEML

20

8 -1- 8

8

BERGEPAINT

5

10 -1- 10

10

BEL

2.5

8 -1- 8

8

BHARATFIN

10

10 -1- 10

10

BHARATFORG

10

10 -1- 10

10

BPCL

10

7 -1- 7

7

BHARTIARTL

10

8 -1- 8

8

INFRATEL

5

10 -1- 10

10

BHEL

2.5

7 -1- 7

7

BIOCON

10

10 -1- 10

10

BOSCHLTD

500

9 -1- 9

9

BRITANNIA

100

10 -1- 10

10

CADILAHC

10

9 -1- 9

9

CANFINHOME

5

10 -1- 10

10

CANBK

5

10 -1- 10

10

CAPF

10

10 -1- 10

10

CASTROLIND

2.5

10 -1- 10

10

CEATLTD

20

10 -1- 10

10

CENTURYTEX

20

10 -1- 10

10

CESC

20

10 -1- 10

10

CGPOWER

2.5

5 -1- 5

5

CHENNPETRO

5

10 -1- 10

10

CHOLAFIN

20

10 -1- 10

10

CIPLA

10

10 -1- 10

10

COALINDIA

5

10 -1- 10

10

COLPAL

20

10 -1- 10

10

CONCOR

10

10 -1- 10

10

CUMMINSIND

20

8 -1- 8

8

DABUR

10

10 -1- 10

10

DALMIABHA

50

10 -1- 10

10

DCBBANK

5

7 -1- 7

7

DHFL

5

10 -1- 10

10

DISHTV

1

10 -1- 10

10

DIVISLAB

20

10 -1- 10

10

DLF

5

9 -1- 9

9

DRREDDY

50

10 -1- 10

10

EICHERMOT

500

10 -1- 10

10

ENGINERSIN

2.5

10 -1- 10

10

EQUITAS

2.5

10 -1- 10

10

ESCORTS

20

8 -1- 8

8

EXIDEIND

5

10 -1- 10

10

FEDERALBNK

2.5

7 -1- 7

7

GAIL

10

8 -1- 8

8

GLENMARK

10

10 -1- 10

10

GMRINFRA

1

5 -1- 5

5

GODFRYPHLP

20

10 -1- 10

10

GODREJCP

20

9 -1- 9

9

GODREJIND

10

10 -1- 10

10

GRANULES

5

5 -1- 5

5

GRASIM

20

10 -1- 10

10

GSFC

2.5

9 -1- 9

9

HAVELLS

10

10 -1- 10

10

HCLTECH

10

10 -1- 10

10

HDFCBANK

20

10 -1- 10

10

HDFC

20

10 -1- 10

10

HEROMOTOCO

50

10 -1- 10

10

HEXAWARE

20

5 -1- 5

5

HINDALCO

5

10 -1- 10

10

HCC

1

5 -1- 5

5

HINDPETRO

5

10 -1- 10

10

HINDUNILVR

20

10 -1- 10

10

HINDZINC

5

10 -1- 10

10

ICICIBANK

5

10 -1- 10

10

ICICIPRULI

5

10 -1- 10

10

IDBI

2.5

5 -1- 5

5

IDEA

1

10 -1- 10

10

IDFCBANK

1

9 -1- 9

9

IDFC

1

10 -1- 10

10

IFCI

1

5 -1- 5

5

IBULHSGFIN

20

10 -1- 10

10

INDIANB

10

7 -1- 7

7

IOC

2.5

10 -1- 10

10

IGL

5

10 -1- 10

10

INDUSINDBK

20

10 -1- 10

10

INFIBEAM

2.5

5 -1- 5

5

INFY

10

10 -1- 10

10

INDIGO

20

9 -1- 9

9

IRB

5

8 -1- 8

8

ITC

5

10 -1- 10

10

JISLJALEQS

2.5

7 -1- 7

7

JPASSOCIAT

1

5 -1- 5

5

JETAIRWAYS

10

6 -1- 6

6

JINDALSTEL

10

5 -1- 5

5

JSWSTEEL

10

9 -1- 9

9

JUBLFOOD

20

10 -1- 10

10

JUSTDIAL

10

10 -1- 10

10

KAJARIACER

10

9 -1- 9

9

KTKBANK

2.5

10 -1- 10

10

KSCL

10

10 -1- 10

10

KOTAKBANK

20

10 -1- 10

10

KPIT

5

10 -1- 10

10

L&TFH

5

7 -1- 7

7

LT

20

10 -1- 10

10

LICHSGFIN

10

10 -1- 10

10

LUPIN

20

10 -1- 10

10

M&MFIN

10

9 -1- 9

9

MGL

10

10 -1- 10

10

M&M

10

10 -1- 10

10

MANAPPURAM

1

10 -1- 10

10

MRPL

2.5

6 -1- 6

6

MARICO

5

10 -1- 10

10

MARUTI

100

10 -1- 10

10

MFSL

10

10 -1- 10

10

MINDTREE

20

10 -1- 10

10

MOTHERSUMI

5

10 -1- 10

10

MRF

500

10 -1- 10

10

MCX

20

8 -1- 8

8

MUTHOOTFIN

10

10 -1- 10

10

NATIONALUM

2.5

6 -1- 6

6

NBCC

2.5

6 -1- 6

6

NCC

2.5

8 -1- 8

8

NESTLEIND

250

9 -1- 9

9

NHPC

1

5 -1- 5

5

NIITTECH

20

10 -1- 10

10

NMDC

2.5

10 -1- 10

10

NTPC

2.5

10 -1- 10

10

ONGC

2.5

10 -1- 10

10

OIL

2.5

10 -1- 10

10

OFSS

50

10 -1- 10

10

ORIENTBANK

2.5

7 -1- 7

7

PAGEIND

500

10 -1- 10

10

PCJEWELLER

5

5 -1- 5

5

PETRONET

5

10 -1- 10

10

PIDILITIND

20

10 -1- 10

10

PEL

50

10 -1- 10

10

PFC

2.5

7 -1- 7

7

POWERGRID

2.5

10 -1- 10

10

PTC

2.5

7 -1- 7

7

PNB

2.5

7 -1- 7

7

PVR

50

6 -1- 6

6

RAYMOND

20

8 -1- 8

8

RBLBANK

10

10 -1- 10

10

RELCAPITAL

10

9 -1- 9

9

RCOM

1

5 -1- 5

5

RELIANCE

20

10 -1- 10

10

RELINFRA

10

9 -1- 9

9

RPOWER

1

7 -1- 7

7

REPCOHOME

10

10 -1- 10

10

RECLTD

2.5

9 -1- 9

9

SHREECEM

250

10 -1- 10

10

SRTRANSFIN

50

5 -1- 5

5

SIEMENS

20

10 -1- 10

10

SREINFRA

2.5

5 -1- 5

5

SRF

50

8 -1- 8

8

SBIN

5

10 -1- 10

10

SAIL

1

10 -1- 10

10

STAR

10

10 -1- 10

10

SUNPHARMA

10

10 -1- 10

10

SUNTV

20

7 -1- 7

7

SUZLON

1

5 -1- 5

5

SYNDIBANK

1

8 -1- 8

8

TATACHEM

10

10 -1- 10

10

TATACOMM

10

10 -1- 10

10

TCS

20

10 -1- 10

10

TATAELXSI

20

10 -1- 10

10

TATAGLOBAL

5

10 -1- 10

10

TATAMTRDVR

2.5

10 -1- 10

10

TATAMOTORS

5

10 -1- 10

10

TATAPOWER

1

10 -1- 10

10

TATASTEEL

10

10 -1- 10

10

TECHM

20

8 -1- 8

8

INDIACEM

5

5 -1- 5

5

RAMCOCEM

10

10 -1- 10

10

SOUTHBANK

1

5 -1- 5

5

TITAN

20

9 -1- 9

9

TORNTPHARM

20

10 -1- 10

10

TORNTPOWER

5

10 -1- 10

10

TV18BRDCST

1

9 -1- 9

9

TVSMOTOR

10

10 -1- 10

10

UJJIVAN

5

10 -1- 10

10

ULTRACEMCO

50

10 -1- 10

10

UNIONBANK

2.5

7 -1- 7

7

UBL

20

10 -1- 10

10

MCDOWELL-N

10

10 -1- 10

10

UPL

20

8 -1- 8

8

VEDL

5

10 -1- 10

10

VGUARD

5

8 -1- 8

8

VOLTAS

10

10 -1- 10

10

WIPRO

5

10 -1- 10

10

WOCKPHARMA

20

7 -1- 7

7

YESBANK

5

10 -1- 10

10

ZEEL

10

10 -1- 10

10

Please not that all these data points are modifiable from time to time based on the stock price movements.