1. SLVon corresponds to iShares Silver Trust, an ETF that tracks the price of silver by holding physical silver to reflect the market price trends of silver. It is an important tool for investors participating in silver commodity investments.

2. ITOTon corresponds to iShares Core S&P Total US Stock Market ETF, an ETF that covers the entire U.S. stock market, tracking the S&P Total U.S. Market Index, which includes large-cap, mid-cap, and small-cap stocks, comprehensively reflecting the overall performance of the U.S. stock market.

3. IWMon corresponds to iShares Russell 2000 ETF, which tracks the Russell 2000 Index, focusing on the U.S. small-cap market. The constituent stocks are mainly emerging growth-oriented small and mid-sized companies, making it a core ETF product for exposure to U.S. small-cap stocks.

4. IAUon corresponds to iShares Gold Trust, an ETF backed by physical gold, closely tracking the spot price of gold, providing investors with a low-cost and convenient way to participate in gold investments, often used as a hedge asset allocation.

5. IWNon corresponds to iShares Russell 2000 Value ETF, which tracks the Russell 2000 Value Index, screening for small-cap stocks in the Russell 2000 Index with value characteristics, focusing on lower valuations and stable cash flows of small and medium enterprises.

6. IJHon corresponds to iShares Core S&P MidCap ETF, which tracks the S&P MidCap 400 Index, covering the U.S. mid-cap stock market, balancing the stability of large-cap stocks with the growth potential of small-cap stocks.

7. EFAon corresponds to iShares MSCI EAFE ETF, which tracks the MSCI EAFE index and invests in developed country stock markets outside of the United States, including core companies in Europe, Japan, Australia, and other regions.

8. IEFAon corresponds to iShares Core MSCI EAFE ETF, a low-cost cross-border ETF for developed markets that also tracks the MSCI EAFE index, suitable for long-term investors allocating to overseas developed markets.

9. SPYon corresponds to SPDR S&P 500 ETF, one of the largest ETFs globally, which tracks the S&P 500 Index, covering 500 large publicly traded companies in the U.S., serving as a benchmark ETF reflecting the performance of the U.S. stock market.

10. IVVon corresponds to iShares Core S&P 500 ETF, a low-cost core ETF that tracks the S&P 500 Index, consistent with SPYon, offering lower fees and suitable for long-term investors holding large-cap U.S. stocks.

11. IWFon corresponds to iShares Russell 1000 Growth ETF, which tracks the Russell 1000 Growth Index, focusing on large-cap growth stocks in the U.S., with constituent stocks primarily being high-growth companies in technology, healthcare, and other sectors.

12. EEMon corresponds to iShares MSCI Emerging Markets ETF, which tracks the MSCI Emerging Markets Index, investing in core listed companies in emerging market countries such as China, India, Brazil, and others.

13. IEMGon corresponds to iShares Core MSCI Emerging Markets ETF, a low-cost emerging markets ETF that tracks the MSCI Emerging Markets Index, covering a broader range of emerging market assets, with significant fee advantages.

14. QQQon corresponds to Invesco QQQ, which tracks the NASDAQ-100 Index, with constituent stocks primarily being technology companies, including leading tech firms like Apple, Microsoft, and NVIDIA, making it a core ETF for investing in U.S. tech stocks.

15. HYGon corresponds to iBoxx $ High Yield Corporate Bond ETF, which tracks the high yield corporate bond index, investing in U.S. high-yield corporate bonds, with higher risks and returns compared to investment-grade bonds.

16. AGGon corresponds to iShares Core US Aggregate Bond ETF, which tracks the U.S. Aggregate Bond Index, covering U.S. treasuries, municipal bonds, and investment-grade corporate bonds, representing a broad-based ETF in the U.S. bond market.

17. TIPon corresponds to iShares TIPS Bond ETF, which tracks the inflation-protected treasury bond index, investing in U.S. inflation-protected bonds that effectively hedge against inflation risk, with principal and interest adjusted according to inflation.

18. TLTon corresponds to iShares 20+ Year Treasury Bond ETF, which tracks U.S. long-term treasuries with maturities of over 20 years, being sensitive to interest rate changes and serving as a main ETF product for investing in U.S. long-term treasuries.