IB switched to shares only for L2?

def said:
I suspect then this will not go over well:

SEC.gov | SEC Adopts Rules to Modernize Key Market Infrastructure Responsible for Collecting, Consolidating, and Disseminating Equity Market Data
Effective June 8
Best bid and best offer (“BBO”)

BBOs for each SRO in round lot sizes (e.g., 100 shares).

BBOs for each SRO in revised round lot sizes based on the new “round lot” definition:

  • $250.00 or less per share: round lot = 100 shares;
  • $250.01 to $1,000.00 per share: round lot = 40 shares;
  • $1,000.01 to $10,000.00 per share: round lot = 10 shares; and
  • $10,000.01 or more per share: round lot = 1 share.
National best bid and national best offer

NBBO is based on the round lot size quotations.

NBBO will be based on the new round lot size quotations.
More...

Instead of showing either lot size, or share size, couldn't IB just implement a share size with rounding of 100? "Rounded share size" for that matter make it a user choice option.

"Select preferred L2 display"
1) share size
2) rounded share size (100)
3) lot size
 
Dear Traders, please login to TWS Beta (1011) which provides additional flexibility: via Presets - Stocks define your divisor to be 100, leave threshold 0. This will make quotes, including market depth, to display in lot sizes.

Thank you,
IB Dev
preset_divisor.png
depth.png
 
pvlattn said:
Dear Traders, please login to TWS Beta (1011) which provides additional flexibility: via Presets - Stocks define your divisor to be 100, leave threshold 0. This will make quotes, including market depth, to display in lot sizes.

Thank you,
IB DevView attachment 269458 View attachment 269459
More...
I guess there's no way to only have it round the L2? I prefer Time and sales to show actual order size, although I don't use TWS time and sales because I dont like the way its colored, or the way it does the burst. So i keep tos time and sales up on the side, and use IB level 2
 
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