Patrick Boyle on Finance
Patrick Boyle on Finance

Bank Runs!

Send us a textBanks don’t fail very often, and bank runs appear to be mostly a thing of the past. The last bank failure in the United States happened in 2020 when a small bank in Kansas failed. That two-year streak was broken this Wednesday with the failure of the crypto focused bank Silvergate, and

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Executive Summary: The podcast analyzes the collapse of Silvergate Bank, a crypto-focused bank that failed after a bank run triggered by the crypto crash and rising interest rates. It explains Silvergate's rise as the go-to bank for crypto firms, its exposure to FTX, and how a loss of customer deposits forced it to sell bonds at a loss, leading to insolvency. The episode also touches on broader risks in the banking sector, exemplified by Silicon Valley Bank's difficulties.

Main Topics: Silvergate's Business Model and Role in Crypto (Priority: 5/5): Silvergate transformed from a small real estate lender to the primary bank for crypto firms, offering a payments network (SEN) and accepting non-interest-bearing deposits from crypto companies. It attracted major clients like FTX, Kraken, and Coinbase by providing dollar banking services that other banks avoided due to regulatory risks. Bank Run Dynamics and Contagion from Crypto Crash (Priority: 5/5): The collapse of FTX and broader crypto downturn led customers to withdraw funds from crypto exchanges, which in turn pulled deposits from Silvergate. This bank run forced Silvergate to sell bonds at a loss, eroding capital. The podcast distinguishes between a traditional bank run driven by solvency fears and a liquidity crisis triggered by depositor industry distress. Interest Rate Risk and Bond Portfolio Losses (Priority: 4/5): Rising interest rates in 2022 caused significant losses in Silvergate's bond portfolio. The bank held large amounts of long-dated securities that fell in market value. To meet withdrawals, it had to sell bonds, realizing over $1 billion in losses. This highlighted the maturity mismatch and lack of hedging in its balance sheet. Regulatory and Legal Scrutiny (Priority: 4/5): Silvergate faced investigations from the U.S. Department of Justice and scrutiny from senators regarding its relationship with FTX. The podcast notes that bank fraud (lying to banks about account use) was a factor in FTX's collapse and that Silvergate's due diligence was questioned. The FDIC and California regulator were involved in the wind-down. Broader Banking Sector Risks (SVB and Bond Portfolios) (Priority: 4/5): The podcast draws parallels between Silvergate and Silicon Valley Bank (SVB), which also suffered losses on bond sales due to rising rates and deposit outflows. It notes that many U.S. banks invested pandemic-era deposit inflows into long-dated securities, creating hidden risks in the banking system. The episode emphasizes that crypto exposure was a diversification issue, but traditional banking risks were central. Stablecoins and Alternatives to Bank Accounts (Priority: 3/5): The podcast discusses why crypto firms needed Silvergate: stablecoins (like Tether) require trust in issuers, and exchanges can commit bank fraud. Silvergate provided a regulated alternative for dollar transactions. The episode critiques stablecoin audits and the broader challenge of integrating crypto with traditional banking.

Key Arguments: Silvergate's failure was primarily due to its lack of diversification and exposure to the crypto industry, not just its Bitcoin lending. The loss of deposits from crypto firms forced bond sales at losses. Rising interest rates simultaneously crushed Silvergate's asset values and caused crypto deposits to evaporate, a double blow that risk management failed to anticipate or hedge. Crypto banks like Silvergate filled a necessary role because traditional banks avoid crypto-related transactions due to anti-money laundering concerns, creating a niche that was vulnerable to industry volatility. The bank run at Silvergate was contagion from the crypto crash, not a loss of faith in the bank itself, but the resulting insolvency was a traditional banking crisis involving maturity mismatch and capital erosion.

Data Points: Silvergate deposits at peak: $13.2 billion - As of September 2022, before the FTX collapse triggered withdrawals. Non-interest-bearing deposits end of December 2022: $3.9 billion - Down from $13.2 billion in September 2022, a drop of over $9 billion. Net loss Q4 2022: Over $1 billion - Includes $751.4 million loss on bond sales and $134.5 million impairment charge for securities to be sold. SEN leverage loan commitments: $1.1 billion - As of January 2023, all performing with no losses, so not the source of failure. Borrowings from Federal Home Loan Bank of San Francisco: $4.3 billion - Borrowed to meet withdrawal demands after deposits fled. Silvergate stock price increase from IPO to peak: 1,580% - From $13 IPO in 2019 to peak a year later, reflecting crypto boom. Previous US bank failure (before Silvergate): $69 million deposits - A small Kansas bank in 2020, highlighting how rare failures had been.

Pivotal Quotes: "[Life as a crypto firm] can be divided up into before Silvergate and after Silvergate. It's hard to overstate how much it revolutionized banking for blockchain companies." — Sam Bankman-Fried (from Silvergate website testimonial, now deleted): Shows the perceived importance of Silvergate to crypto industry, later ironic given FTX's fraud and Silvergate's collapse. "The beauty of dealing with these crypto customers... was that because you don't have any real competition in this space, you don't really have to pay them any interest on their deposits." — Patrick Boyle (podcast host): Explains Silvergate's profitable but risky business model: low-cost deposits invested in bonds. "One way to think about the rise and fall of Silvergate is that the crypto boom was at its heart a low interest rate phenomenon." — Matt Levine (Bloomberg, quoted by Boyle): Highlights the double exposure: low rates fueled crypto demand and boosted bond values; rising rates reversed both.

Implications: The Silvergate collapse signals that crypto contagion can infect regulated banks, and rising interest rates expose hidden bond portfolio risks across the banking sector. Investors should scrutinize bank diversification, interest rate hedging, and deposit stability. Regulators may tighten crypto-banking oversight and capital requirements for digital asset exposure.

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About Patrick Boyle on Finance

This podcast is all about quantitative finance and financial history. Subscribe to hear about financial markets, derivatives, and how investors use quantitative tools from statistics and corporate finance theory. Included are interviews with some of the most interesting thinkers in finance. Occasional longer form financial documentaries, open up fascinating elements of financial markets history. Patrick Boyle is a quantitative hedge fund manager, a university professor, and a former investment banker. To contact Patrick visit http://onfinance.org Find Patrick on YouTube at: https://www.youtube.com/c/PatrickBoyleOnFinance

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