Josh Younger Explains How Banks Really Manage Rate Risk

Episode Summary

Executive Summary: The episode explains how bank deposits are not a fixed, linear funding source but a behavioral, nonlinear liability whose interest-rate sensitivity rises as rates rise. Guest Josh Younger argues this "deposit convexity" affects banks’ interest-rate risk, balance-sheet duration, lending capacity, and the transmission of monetary policy, especially when banks compete with money market funds and must hedge changing deposit betas.

Main Topics: Deposits as a behavioral liability (Priority: 5/5): The hosts and guest frame deposits as demandable overnight liabilities that are usually sticky in practice, but can also leave abruptly, making bank funding inherently nonlinear and hard to model. Deposit beta and rate pass-through (Priority: 5/5): Younger explains deposit beta as the share of market-rate moves passed through to deposit rates, noting that it varies by deposit type and is not a stable linear relationship. Deposit mix: retail, operational, and non-operational (Priority: 5/5): The discussion distinguishes stable retail deposits from wholesale deposits, with non-operational corporate cash being the most rate-sensitive and most likely to move to money market funds. Negative convexity and balance-sheet risk (Priority: 5/5): The episode shows how rising rates can shorten deposit duration and force banks to adjust assets, creating negative convexity on both sides of the balance sheet. Competition with money market funds (Priority: 4/5): Money market funds are portrayed as an important outside option for excess cash, especially when rates rise, though Younger emphasizes that banks and MMFs are fundamentally different businesses. Monetary policy transmission and lending constraints (Priority: 5/5): The conversation links variable deposit betas to the bank lending channel, arguing that higher betas can raise funding costs and reduce capacity for long-term fixed-rate lending. Asset-liability management in practice (Priority: 4/5): The hosts probe how banks manage interest-rate risk across treasuries, mortgages, and loans, highlighting regulatory limits and the opaque nature of ALM.

Key Arguments: Deposits are behaviorally sticky, but not reliably so; the same liability can appear long-duration until it suddenly is not. Deposit beta measures pass-through from market rates to deposit rates, and it varies by product, customer type, and bank strategy. Retail deposits are generally low-beta because they provide convenience and transaction services; wholesale non-operational cash is much higher beta. As interest rates rise, deposit betas tend to rise too, making the relationship convex rather than linear. Money market funds pressure banks by offering a higher-yield alternative for excess cash, especially for institutional depositors. When betas rise, deposits become shorter-duration liabilities, reducing banks’ capacity to hold long-duration assets or make long-term fixed-rate loans. Banks therefore face interest-rate risk on both assets and liabilities, and ALM departments must hedge the consolidated balance-sheet exposure. Variable deposit betas can affect monetary policy transmission by changing funding costs and by constraining the quantity of long-term lending, not just loan pricing.

Data Points: Stock Movers report length: "five minutes or less" - Promo describing Bloomberg's short audio stock reports. Deposit beta example: 25% - Used to illustrate that a 100 basis point market-yield move would raise deposit rates by 25 basis points. Market-yield move example: 100 basis points / one percentage point - Illustration of how deposit beta translates benchmark-rate changes into deposit-rate pass-through. Guest appearance count: "the fifth, sixth time" - Hosts joking about Josh Younger’s repeated appearances on Odd Lots. Recording date: November 9 - Josh Younger notes the recording date when giving his views disclaimer. Bloomberg journalist/analyst network: 3,000 journalists and analysts - Mentioned in podcast promos for Bloomberg stock/news products. Bank lending channel reference year: 1980 - Hosts mention Bernanke and Blinder’s paper while discussing the academic literature on the bank lending channel.

Pivotal Quotes: ""deposits are there until they're not"" — Joe Weisenthal: A concise description of deposit stickiness and sudden runoff risk. ""the beta is variable"" — Josh Younger: Core thesis that deposit-rate pass-through is not fixed and has important balance-sheet implications. ""the last 100 basis points are not the same as the first 100 basis points"" — Tracy Alloway / Josh Younger discussion: Explains the nonlinear, convex relationship between rates and deposit pass-through.

Implications: Banks, regulators, and investors should treat deposits as a nonlinear source of funding risk, especially in rising-rate environments. Higher betas can squeeze lending capacity, alter hedging needs, and intensify monetary-policy transmission through the banking system.