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Free guides, tutorials and courses about cryptocurrencies and blockchain technology

All courses and articles

1 min read

Invest in index funds, stocks, and ETFs from a single app

Discover how to invest in index funds, buy shares online and choose ETFs in Spain from a single app, with a comparative table of costs and taxes.

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1 min read

Crypto card in Spain: how it works and what you should know before choosing yours

Discover how a crypto card works in Spain: conversion when paying, regulatory framework, types, cashback, security and key criteria for choosing one.

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1 min read

Dividends and tax withholding: how much do you really keep?

Understand how the 19% withholding tax on dividends works in Spain, international double taxation, and how to recover the excess in your tax return.

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1 min read

Dividends: how to earn income by investing in stocks

Dividends are the portion of profits that a company distributes to its shareholders. Discover how they work, the ex-dividend date, and withholding tax.

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1 min read

Loans using cryptocurrencies as collateral: the complete guide

Complete guide to lending with cryptocurrencies as collateral: how it works, LTV, liquidation risk, taxation, and a comparison table vs. selling.

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1 min read

Diversifying a crypto portfolio with traditional assets: why and how

Is your portfolio 100% crypto? Learn how to reduce volatility by combining crypto assets with funds and ETFs. Bit2MeA practical step-by-step guide.

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1 min read

Cryptocurrency exchange regulated in Spain: complete guide 2026

Discover what it means for a cryptocurrency exchange in Spain to be regulated under MiCA, how to verify this with the CNMV, and what to compare before choosing one.

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1 min read

How to diversify your stock portfolio: by index, geography, and market capitalization

Diversify your stock portfolio by index, geography and capitalization: IBEX 35, S&P 500, Nasdaq 100, blue chips, mid caps and small caps explained.

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1 min read

Diversification: Don't put all your eggs in one basket (and how to do it right)

Learn what investment diversification is, why it protects your portfolio, and how to diversify by geography, sector, and asset type from Spain.

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1 min read

Crypto vs. traditional investment: taxation and risk compared

The KIID is the mandatory document for every UCITS fund: what sections matter, what data to look at before investing, and how to compare two funds using it.

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1 min read

Build and maintain your portfolio: risk profiles and rebalancing

Discover how to build your portfolio according to your risk profile (conservative, moderate, aggressive) and when to rebalance it: examples with UCITS and IRPF ETFs.

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