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Funds: ready-made basketsrisk 3 of 5: medium, moves with markets

Stock index ETF

Rules, protection and tax below are for Argentina.

What it is

An ETF that holds every company in an index, in the same proportions, and trades on the exchange like a share. There is no manager choosing stocks, just a rule, which is why the ongoing charge can be a tenth of an active fund's.

This is the instrument behind most of the honest advice you will ever read: buy the whole market cheaply, add to it regularly, and hold for decades. It captures the long-run growth of business without betting on which businesses.

It is still shares. A world index has fallen by half in a bad crash and taken years to recover. The reason it works is that people who kept adding through those years ended up well ahead; the reason it fails is that people sell at the bottom.

How it works

  1. The fund buys the index's constituents and issues shares that trade on the exchange all day.
  2. Large investors keep the price close to the holdings' value by creating or redeeming blocks of shares.
  3. The ongoing charge, typically 0.05 to 0.3 percent a year, is taken from the fund's assets.
  4. Dividends from the companies are paid out or reinvested, depending on the share class.

The honest pros and cons

For

  • The cheapest way to own hundreds or thousands of companies at once.
  • No manager risk: you get the market's return minus a tiny fee.
  • Trades any time the exchange is open, with a small spread.
  • Ideal for regular monthly investing.

Against

  • Falls as hard as the market it copies; a 30 to 50 percent drawdown is normal once a decade.
  • Which index matters: a home-country index is far less spread than a world one.
  • Foreign-listed funds can bring currency risk and withholding tax.
  • Some ETFs use derivatives to copy the index; check it holds the real shares if that matters to you.

Getting it in Argentina

Stock index ETF restricted

CEDEARs on the big US index ETFs trade on BYMA in pesos and are the most popular way to hold a diversified portfolio. Their peso price moves with both the underlying and the implied dollar. Index-style FCIs are the alternative, with entry in minutes from a bank or fintech app.

no locally listed index ETF exists; the closest routes are CEDEARs on foreign ETFs and index funds (FCI)

  • Account type: Cuenta comitente (brokerage account at an ALyC) (gains on Argentine shares and CEDEARs listed locally are exempt for residents; interest on plazos fijos in pesos is exempt; foreign-sourced gains are taxed at 15 percent)
  • Your protection: securities are held at Caja de Valores in your name, so a broker failure does not touch them; no scheme covers market or currency losses (source, checked 2026-09-17)
  • Tax here: gains and dividends on CEDEARs are exempt from income tax for residents; holdings count for the wealth tax above its threshold (source, checked 2026-09-17)

How to start

  1. Open a cuenta comitente at a CNV-registered broker or through your bank.
  2. Pick a CEDEAR on a broad US or world ETF and note the ratio to the underlying.
  3. Buy monthly and remember the peso price already contains the dollar.

Wherever you are

  1. Pick the index first: world or global funds spread furthest; single-country funds bet on one economy.
  2. Compare the ongoing charge and the fund's size; large, cheap and physically backed is the usual choice.
  3. Buy through your broker inside a tax shelter, set up a monthly purchase, and stop checking the price.

Try it

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Getting it from another country

Via United States restricted· available there

The common route is a CEDEAR in a local brokerage account. A US brokerage account funded through the official market or the MEP dollar is possible but the rules change often; check the current BCRA communication first.

What you gain

  • CEDEARs give US exposure and a dollar hedge without leaving the local market.
  • A foreign account, where possible, gives the full US menu at low cost.

What you give up

  • Exchange controls change often, and what was allowed last year may not be now.
  • Currency risk works the other way here: a weaker peso lifts CEDEAR prices, a stronger one cuts them.
  • Foreign-sourced gains are taxed at 15 percent, unlike exempt local shares.
  • Tax: gains on locally listed shares and CEDEARs are exempt for residents; gains in a foreign account are foreign-sourced and taxed at 15 percent (source, checked 2026-09-17)

Currency reality check

The same ARS 1,000 left for 10 years, at each country's savings rate:

Kept in ARS at about 48.6% a year

ARS 46,302

Sent to USD at about 2.5% a year, the account would show

USD 80 the tempting number

Brought back to ARS after the exchange rate moved 9610.6%

ARS 124,063 what you can actually spend

Before tax, before fees, and before the risk that the exchange rate does something quite different next time. A higher rate abroad is only a higher return once it has survived the conversion back.

Go deeper

Also called

index tracker, tracker fund, world ETF, S&P 500 ETF, passive fund

Often confused with

  • Domestic shares: Part ownership of a company listed in your own country.
  • Mutual fund: A pool of many investors' money run by a manager who buys a basket of assets for a yearly fee.
  • Leveraged or inverse ETF: A fund that multiplies or reverses an index's daily move; over time the multiplication compounds losses fast.
Stock index ETF in Argentina · wealth-coop