Tax and regulation
Tax rules vary by country and change over time. These articles describe general principles; always check your own situation with a professional or an official source.
Regulatory Reporting for Quant Funds: Form PF, 13F, and the Line With Strategy Secrecy
The 13F publishes positions that are at least 45 days old, up to 136 days before the next filing. And the 5-year annualized volatility of the S&P 500 (17%) and Bitcoin (51.6%) would place them in categories 4 and 6 respectively on the 7-tier PRIIPs risk scale. What regulatory reporting really reveals, and what it protects.
ESMA Leverage Regulation on CFDs/Forex: What Changed for European Retail Traders
The 50%-margin close-out on a 30:1 EUR/USD CFD triggers at a 1.67% adverse move, which has happened on 1.2% of sessions since 1999. On a 5:1 equity CFD, the 10% threshold is crossed far more often. A real calculation of how often forced close-outs actually occur, instrument by instrument.
ETF Taxation: Tax-Advantaged Wrapper vs Ordinary Brokerage Account
On €20,000 invested for 20 years at a 6% gross return, the PEA's after-tax value (18.6% social contributions in 2026) comes to €55,932, versus €50,282 for an accumulating brokerage-account ETF taxed at the 31.4% flat tax, and €49,066 for a distributing one. A calculated simulation using 2026 rates, to confirm with a professional.