The effects of geopolitical risk on sovereign debt holders in the euro area (European Central Bank)

Summary

• The Securities Holdings Statistics by Sector (SHSS) dataset provides granular coverage generally above well 90 percent for each euro area country analyzed.p.9
• Granular securities holding data are aggregated into 9 holder-sectors, encompassing banks, investment funds, households, and non-bank financial institutions.p.9
• Domestic Belgian money market funds respond to a geopolitical risk shock with a sharp increase of approximately 1 percent on impact before contracting.p.12
• Spanish domestic households show a delayed reaction to geopolitical risk, with holdings rising markedly by more than 2 percent after three quarters.p.13
• Domestic Spanish money market funds expand their holdings of sovereign debt by nearly 1 percent during the first quarter following a shock.p.14
• Across non-domestic investor categories in Spain, all types reduce their sovereign debt holdings by approximately 1.5 percent after several quarters.p.18
• Non-domestic money market funds reduce their holdings of Spanish sovereign debt by nearly 2 percent across the first two quarters.p.19

Key insights

1. 1. Domestic investors frequently act as stabilizers by expanding sovereign debt holdings during geopolitical risk episodes, whereas foreign investors tend to retrench more decisively.p.3
2. 2. Domestic households in Belgium and Italy expand sovereign bond holdings on impact, whereas household responses in Spain and France are delayed.p.4
3. 3. Insurance companies and pension funds generally increase exposures initially before reducing them over time due to liability-driven mandates and Solvency II regulatory constraints.p.3
4. 4. Domestic banks frequently expand their sovereign debt holdings over the medium term, supported by zero risk weights and carry-trade dynamics.p.16
5. 5. Foreign institutional investors in Spain and Italy, particularly money market funds, insurance corporations, and investment funds, exhibit strong retrenchment following geopolitical risk shocks.p.4
6. 6. Transaction-based estimations confirm that active portfolio rebalancing decisions, rather than passive mark-to-market valuation changes, drive observed portfolio shifts.p.26
7. 7. In Belgium and France, some non-domestic investor categories increase their holdings after a shock, indicating potential intra-European sovereign debt substitution.p.4
8. 8. Geopolitical shocks influence sovereign debt holders through two complementary channels: a yield-mediated risk premia channel and a direct aggregate uncertainty channel.p.16