Prices come from Boursorama for the listings it quotes, matched to the exact venue and currency, and from Yahoo Finance otherwise. Fund holdings, sectors and countries come from issuers' published holdings files, mainly iShares. Fees are ongoing charges (TER) from Yahoo Finance and justETF. Each asset page shows the date of its latest price.
Each listing is identified by its FIGI (from OpenFIGI), a code that differs for each exchange where the same security trades. The ISIN groups all listings of one security.
Brokers quote live prices; the site uses closing prices, refreshed hourly for held assets. On a listing Boursorama quotes, the close matches it.
The list comes from the issuer's latest holdings file, or for a swap fund, from a fund tracking the same index. Weights also move every day with prices.
Yes, through the contact page. Please include the asset's ticker and the figure concerned.
Last checked against the code on October 15, 2026. Nothing on Mon Petit Portfolio is investment advice.