Bitcoin: direct BTC custody through a reputable exchange followed by self-custody for long-term holdings, or a European bitcoin ETP/ETN where brokerage access is preferred. Direct custody gives asset control but requires serious operational security.
Hyperinflation use case: Spain is not a hyperinflation environment, so bitcoin here is normally a high-risk monetary hedge or speculative satellite, not a daily survival tool. Investors worried about extreme monetary stress should still keep practical liquidity in EUR, USD cash-like instruments or bank deposits; bitcoin is not a substitute for emergency cash.
Notas de cuenta: Use strong security practices: hardware wallet, seed phrase backup, 2FA, withdrawal whitelists and careful separation of exchange and cold-storage balances. ETPs avoid self-custody but introduce issuer, structure and brokerage risk. In a real capital-control scenario, direct custody has a different role from an exchange-traded product because the investor controls the private keys.
Costes: Watch exchange fees, bid-ask spreads, network withdrawal fees, hardware wallet costs and ETP expense ratios. Avoid frequent small on-chain movements when fees are high. For self-custody, operational mistakes can be more expensive than any fund fee.
Rebalanceo: There is no internal rebalancing because the portfolio has one asset. At household level, review bitcoin as a percentage of total net worth. In an inflation-survival context, avoid letting ideological purity override basic liquidity needs.
Fiscalidad: Spanish investors should keep full purchase records, transfer records, wallet addresses, transaction hashes, fees and euro values. Sales or swaps can create taxable gains or losses. Moving bitcoin between own wallets is not the same as selling, but records should still be kept to prove continuity of ownership.
Los productos mencionados son ejemplos para investigación. Disponibilidad, fiscalidad, clases de participación e idoneidad deben comprobarse con el broker y la situación fiscal del inversor.