What are ETFs?
Exchange-traded funds (ETFs) are a type of investment vehicle that allows investors to purchase shares of a basket of underlying assets, such as stocks or bonds. ETFs are similar to mutual funds, however they trade on exchanges just like a stock, giving investors the opportunity to purchase and sell shares throughout the trading day.
ETFs are a good option for building a diverse Portfolio

ETFs are an excellent choice to build a diverse portfolio of investments because they provide the opportunity to invest in a variety of assets. By investing in a single ETF, investors can be exposed to hundreds, or even thousands of different stocks or bonds. This type of diversification could help reduce risk and improve potential returns.
The best ETFs to recommend to help Stock Market Exposure
SPDR S&P 500 ETF (SPY) The ETF is a benchmark for the S&P 500 index, which is a broad market index which includes 500 of the biggest publically traded firms in the United States.

Vanguard Total Stock Market ETF (VTI) This ETF offers exposure to the whole U.S. stock market, comprising small, mid as well as large-cap stock.

iShares MSCI EAFE ETF (EFA) This ETFおすすめ gives exposure to developed international stock markets that include Europe, Australasia, and the Far East.
The best ETFs to invest in to Bond Exposure
iShares iBoxx IShares iBoxx Investment High-Quality Corporate Bond ETF (LQD): This ETF offers the opportunity to invest in a variety of corporate bonds that are investment grade.

iShares iBoxx $ Treasury Bond ETF (GOVT): This ETF provides exposure to U.S. Treasury bonds, that are considered to be as among the most secure investments in the world.

iShares iBoxx USD High Yield Corporate Bond Fund (HYG): This ETF provides an exposure to a broad range of corporate bonds with high yield that can provide higher returns but also carry greater risk.
Conclusion
ETFs are a great choice to create a diversifiable portfolio of investment. When investing in a single ETF, investors can get exposure to a diverse array of investments. The recommended ETFs listed above are a good starting point for investors looking to gain exposure to the stock and bond market. It's important to keep in mind that past performance is no guarantee of future results , and it's essential to conduct an independent investigation and talk with a financial adviser prior to making any investment decision.