==== CMBs ====
  * 42-Day CMBs are getting issued every Thursday.
    * [asof | 2024-01-11] 42-Day CMBs were issued - 2013-12-07, 2013-12-14, 2013-12-21, 2023-12-28, 2024-01-04, 2024-01-11.
    * [asof | 2024-02-01] 42-Day CMBs were issued - 2024-01-18, 2024-01-25, 2024-02-01.
  * (42-Day CMB; 912797LL9; auction date = 2024-02-06; announcement date = 2024-02-01). So new CMBs are announced every Thursday?
  * There are three dates - announcement date, auction date, issue date.
    * Issue date is same as settlement date.

==== links I came across ====
  * https://thefinancebuff.com/treasury-bills-cd-money-market.html - How To buy Treasury bills & notes without fee at online brokers
    * Well written; high information density
    * I used it to buy Treasury bills from Fidelity
  * https://www.ustreasuryyieldcurve.com/ - US Treasury yield curve
  * https://www.cnbc.com/quotes/US10Y - shows time series of US 10 year Treasury
  * https://www.treasurydirect.gov/auctions/upcoming/ - upcoming auctions
  * https://www.treasurydirect.gov/auctions/announcements-data-results/ - auction announcements, data and results

==== Q & A ====
:?: When did Treasury start issuing 17 week T Bills? \\

:!: October 25, 2022

  * Ref:- https://www.treasurydirect.gov/research-center/timeline/auctions/

:?: How much of the US Treasury debt is outstanding? \\

:!: $27 trillion asof 2024-03-23

Ref: https://www.wsj.com/finance/the-27-trillion-treasury-market-is-only-getting-bigger-a9a9d170

:?: How much of US Treasury debt is held by foreign investors?

:!: ~25%

Ref: https://www.wsj.com/finance/the-27-trillion-treasury-market-is-only-getting-bigger-a9a9d170

==== timelines ====

^ security ^ frequency ^ announcement day and time ^ auction day and time ^ settlement day ^
| 13-Week Bill | weekly | | Thu 2:30 pm | |
| 17-Week Bill | weekly | | Wed | |

Ref:-
  * Info on 13-week bills is available at https://home.treasury.gov/news/press-releases/4_week_bills