Notice

Changes to Market Maker minimum quote size, Quoting Schedule length and Special Size for Single Stock options

What's this about:
  • ASX Market
  • Trading
  • Clearing
  • Product
  • Operations
  • Technology
  • Market Data
  • Rules
  • Compliance
  • Risk
  • Options & ETOs
  • Special Size
  • ETO Market Making
  • Market Making Obligations
  • FlexClear™
Notice reference number: 0243.23.03
Date published: 20/03/23
Effective as of: 03/04/23
Last updated: 20/03/26

ASX participants and users are advised that ASX will be making changes to the market maker quoting obligations in a range of Single Stock ETO Classes. ASX will be making changes to the minimum quote size obligations, allocation of quoting schedule and the quoting schedule itself.

ASX has a general policy in setting the level of ETO Special Size (with respect to number of contracts) to a 15 times multiple of the minimum market maker quote size. As such, Special Size levels and associated Equity FlexClear™ entry size levels will be adjusted accordingly.

The changes to market maker quoting obligations and Special Size levels of affected ETO Classes will become effective from Monday 3 April 2023.

A summary of the 13 ETO Classes whereby minimum quoting size and corresponding Special Size level are changing can be found below:

Underlying

Current Min Quote Size

ASX New Min Quote Size

New Special Size (number of contracts)

ANZ*

250

300

4500

ASX

30

50

750

BSL

200

150

2250

COL

100

200

3000

GMG

100

200

3000

IFL

200

300

4500

NAB*

200

250

3750

STO*

200

400

6000

TAH

500

1000

15000

TWE

250

150

2250

WBC*

150

300

4500

WTC

50

30

450

ZIP

200

250

3750

* Top 20 stock

Note: ETO Special Size premium value thresholds will remain unchanged and continue to align with ASICs MIR for the given underlying.

3 ETO Classes are moving to new Quoting Schedules (Max Spreads):

Underlying

Current Quoting Schedule

ASX New Quoting Schedule

ALU

3

4

MIN

4

6

ZIP

2

1

Quoting Schedules for ETO classes will be trimmed at the higher end of the Premium range to decrease the number of price points.

Please find below links to the comprehensive list of ETO Market Maker obligations and Quoting Schedules, and ETO Class Special Size levels becoming effective on 3 April 2023:

What do I need to do by when?

Participants and end users should familiarise themselves with the market maker obligation adjustments and Special Size/FlexClear™ changes in order to make any necessary process developments to accommodate the transition.

Need more information?

Issued by

Gregory Pill – Head of Equity Derivative Products

Contact information

Greg Pill
+61 (02) 9227 0696
greg.pill@asx.com.au

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