# Regimes

Source: https://www.yieldcurve.pro/regimes

This app allows users to see which market regime exists as of the
selected date. The regime is a result of movements in yields as measured
by the Level and Slope components of the yield curve.

The components of the yield curve — Level and Slope — follow the
framework of Litterman and Scheinkman (1991) and account for the vast
majority of historical yield curve variation. This app uses the
following proxy definitions:

* **Level** = 10 Yr (the general level of rates across the curve)
* **Slope** = 10 Yr − 3 Mo (the spread between long and short rates)



The possible regimes are

* **Bull Steep** - Level and Slope decreasing and increasing,
  respectively, characterized by short-term rates falling faster
  than long-term rates
* **Bull Flat** - Level and Slope both decreasing, characterized
  by long-term rates falling faster than short-term rates
* **Bear Steep** - Level and Slope both increasing, characterized
  by long-term rates rising faster than short-term rates
* **Bear Flat** - Level and Slope increasing and decreasing,
  respectively, characterized by short-term rates rising faster than
  long-term rates.
* **Consolidation** - Either the change in Level or Slope is below
  5 bps over the lookback window, indicating no clear directional signal.

Changes in Level and Slope are computed relative to a lookback window. The
system default is 251 market days.

## Instructions

* choose the desired **Start** and **End** dates using the two date selectors — the chart updates automatically
* choose the desired **Long Tenor** and **Short Tenor** from the dropdown menus
* click the **sparkle** button to open **ChatYCP** and ask questions about the data (login required)

## Notes

* **Start** and **End** are pre-populated with the earliest and latest dates
available, respectively
* **Long Tenor**, **Short Tenor**, and **Lookback** are pre-populated with system
defaults (10 Yr, 3 Mo, and 251 days, respectively). Logged-in users can change
these via [Account Defaults](https://www.yieldcurve.pro/about#header_defaults)
* try asking ChatYCP: *"What is the current yield curve regime?"* or *"How many regime transitions occurred in 2024?"*

Use Cases

* selecting the best asset classes for a given regime
* risk management and hedging
* economic analysis and forecasting

Further Reading

* <a href="https://www.risk.net/derivatives/1510869/common-factors-affecting-bond-returns" target="_blank">Litterman &amp; Scheinkman (1991) — Common Factors Affecting Bond Returns</a>
* <a href="https://www.msci.com/www/blog-posts/factors-in-focus-are-your/02933279202" target="_blank">Factors in Focus: Are Your Equity Styles Ahead of the Curve?</a>
* <a href="https://www.northerntrust.com/content/dam/northerntrust/pws/nt/documents/investment-management/foundations-in-factors.pdf" target="_blank">Foundations in Factors</a>
* <a href="/blog/thoughts-on-bear-bull-flatteners-steepeners">Bears, Bulls, Steepeners, Flatteners, Oh My!</a>
* <a href="/blog/asset-returns-during-various-yield-curve-regimes">Asset Returns During Various Yield Curve Regimes</a>
* <a href="/blog/is-the-yield-curve-cyclical">Does The Yield Curve Follow a Cycle?</a>
