Social Media as a Bank Run Catalyst
Journal of Financial Economics · Volume 176, 2026, 104218
When Silicon Valley Bank collapsed, the banks that suffered most were not simply the weakest ones — they were the ones whose depositors were already talking on Twitter. Banks with high pre-existing Twitter exposure lost 4.3 percentage points more market value during the run. What mattered was attention rather than anger: negative sentiment did not predict damage, but sustained attention from tech-community users, and tweets explicitly about running, did. Social media has made deposit flight faster than the regulatory tools designed to contain it.
Abstract
After the run on Silicon Valley Bank (SVB), U.S. regional banks entered a period of significant distress. We quantify social media's role in this distress using comprehensive Twitter data. During the SVB run period, banks with high pre-existing exposure to Twitter lost 4.3 percentage points more stock market value. Moreover, Twitter pre-exposure interacts significantly with classical run risks to predict greater run severity and greater deposit outflows during Q1 2023, effects unexplained by other banking or market characteristics. At the hourly frequency during the run, high Twitter attention over the past four hours predicts stock market losses, especially for banks with high run risks. By contrast, we find that negative Twitter sentiment does not amplify bank run risks. Rather, our evidence points to a distinctive role of Twitter attention by tech community members who are likely depositors in SVB, as well as tweets that mention running and contagion.
Media coverage (10)
- The Surprising Risk That Turbocharged a $142 Billion Bank Run — Wall Street Journal
- Wake up to the dangers of digital bank runs — Financial Times
- A hat-trick of genuinely interesting papers relevant to the banking mess — Financial Times
- A social-media-powered bank run (DealBook) — The New York Times
- Social media raises bank run risk, fueled SVB's collapse, paper says — CNBC
- Twitter poses a risk to the financial system and helped fuel the SVB run — Fortune
- Twitter fueled run on Silicon Valley Bank, new paper finds — Axios
- Study Finds Twitter Chatter Fueled SVB Collapse — Money
- Did Tweets Help Crash Silicon Valley Bank? — Kiplinger
- Social Media Fueled the Run on Silicon Valley Bank: Study — TechNewsWorld
Cited by regulators (2)
- Review of DFPI's Oversight and Regulation of Silicon Valley Bank — California DFPI
- Reporte de Estabilidad Financiera — Banco de la República de Colombia
social mediabankingbank runs