Bear Steepener

A bear steepener is a yield curve regime where bond prices fall (yields rise) and the curve steepens (the spread between long and short rates widens). Long-term yields rise faster than short-term yields.

The mechanics:

• Long-term yields surge as the market demands higher compensation for holding duration risk
• Short-term yields may rise too, but more modestly, anchored by current monetary policy
• The net effect is a steeper curve driven by the long end

Bear steepeners are associated with several scenarios:

• Rising term premium: investors demand more compensation for holding long-duration bonds, often due to fiscal concerns, increased Treasury supply, or inflation uncertainty
• Early tightening expectations: when the market begins pricing a tightening cycle but the Fed hasn't yet acted aggressively on the front end
• Growth acceleration: optimism about future growth pushes long-term yields higher

The 2023 bear steepener was driven by rising term premium as the Treasury increased long-end issuance and the Fed's quantitative tightening reduced demand, pushing the 10-year yield toward 5%.

Bear steepeners are particularly painful for leveraged long-duration positions and for portfolios that rely on bonds as a hedge against equity drawdowns. The regimes tool classifies each trading day into one of five regimes (including Consolidation when changes are below the 5 bps threshold) to track these transitions.