| 1997 |
January 29, 1997: The first inflation-indexed security auction was held. The security was a 10-year note. The issuance schedule for inflation indexed securities was announced: the 15th of January, April, July and October. |
| 1997 |
June 1997: Five-year inflation-indexed notes were introduced. |
| 1998 |
April 1998: Begin offering of 30-year inflation indexed bond. |
| 1998 |
Auctions of 5-year inflation-indexed notes were discontinued. |
| 1999 |
March 1999: Strips for TIPS (Treasury Inflation-Indexed Notes-TIINs) became fungible. TIPS auction results also began including the TIIN conversion factor. This change was made to enhance the liquidity of TIPS. |
| 2000 |
30 -year inflation indexed bond was reduced to one issuance a year in October. |
| 2003 |
October 2003: 10-year TIPS auctions expanded to 4 per year. Original issue 10-year TIPS were offered in January (with a reopening in April) and July (with a reopening in October). |
| 2004 |
July 2004: Introduction of 20-year TIPS. This security had an auction schedule of January-Original Issue (OI) and July-Additional Issue (AI) and was to be issued on the last business day of the month and back-dated to the 15th of the month. |
| 2004 |
September 2004: Negative bidding was implemented for TIPS. In the event the security stopped out at a negative yield at auction, the coupon rate would be set at zero and the security would be issued at a premium. |
| 2004 |
October 2004: Reintroduction of 5-year TIPS. This security had an auction schedule of April (OI) and October (AI) and was to be issued on the last business day of the month and back-dated to the 15th of the month. |
| 2009 |
November 2009: Treasury announces discontinuation of 20-year TIPS |
| 2009 |
November 2009: Treasury announces reintroduction of 30-year TIPS with the first auction to take place in February 2010. |
| 2010 |
October 25, 2010: Record breaking TIPS auction; the $10 billion, 5-year TIPS reopening stopped out at a negative yield for the first time in history. |
