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--- treasury_direct_notes [2023/01/19 23:35] – [methodology related] admin
+++ treasury_direct_notes [2023/04/04 14:11] – admin
@@ Line 1: / Line 1: @@
-==== methodology related ====
+===== qna =====
+==== treasury bills vs. notes vs. bonds ====
+??? What is the difference between Treasury bills, notes and bonds?
+!!!
+===== methodology related =====
+==== high rate vs. investment rate ====
 ??? What is the difference between "high rate" and "investment rate" in https://www.treasurydirect.gov/auctions/announcements-data-results/?
-!!!
+!!! For bills not more than one half-year to maturity
 <code>
 high_rate = ((100-P) / 100) * (360 / r)
@@ Line 23: / Line 30: @@
 | 912796Y60 | Bill | 4-Week | 01/19/2023 | 01/24/2023 | 02/21/2023 | 99.651556 |
+<code>
+$ ipython
+Python 3.10.8 | packaged by conda-forge | (main, Nov 24 2022, 14:07:00) [MSC v.1916 64 bit (AMD64)]
+IPython 8.7.0 -- An enhanced Interactive Python. Type '?' for help.
+In [1]:
+P = 99.651556; r = 28; y = 365
+In [2]:
+high_rate = ((100-P) / 100) * (360 / r)
+In [3]:
+high_rate
+Out[3]:
+.04479994285714294
+In [4]:
+round(high_rate * 100, 3)
+Out[4]:
+.48
+In [5]:
+investment_rate = ((100-P) / P) * (y / r)
+In [6]:
+investment_rate
+Out[6]:
+.04558098850530179
+In [7]:
+round(investment_rate * 100, 3)
+Out[7]:
+.558
+</code>
+===== dummy =====
 ==== Highlights from https://www.treasurydirect.gov/forms/sec009.pdf ====
   *  bill, note, bond, FRN, and TIPS
@@ Line 32: / Line 75: @@
 ==== links I came across ====
+  * https://www.treasurydirect.gov/auctions/how-auctions-work/ - How auctions work
   * https://www.treasurydirect.gov/forms/sec009.pdf - Investing Directly With the U.S. Treasury (FS Publication 009) is an introductory publication.
   * https://www.treasurydirect.gov/indiv/help/treasurydirect-help/user-guide/291-300/ - User guide sections 291 through 300