The recent interest rate cut by the Federal Reserve can have different impacts on TLT (iShares 20+ Year Treasury Bond ETF) and ARKK (ARK Innovation ETF), so your choice depends on your investment goals and risk tolerance.

TLT (iShares 20+ Year Treasury Bond ETF)

- Interest Rate Sensitivity: TLT is highly sensitive to interest rate changes. When interest rates fall, the price of long-term bonds typically rises, which can benefit TLT. This makes TLT a good option if you expect rates to continue falling.

- Stability: TLT is generally considered a safer investment compared to equities, as it invests in U.S. Treasury bonds, which are backed by the government.

- Yield: While TLT can provide a steady income through bond interest payments, its yield is less sensitive to short-term rate changes compared to shorter-term bonds.

ARKK (ARK Innovation ETF)

- Growth Potential: ARKK focuses on disruptive innovation and high-growth companies, which can offer significant returns if these companies perform well.

- Volatility: ARKK is more volatile and riskier compared to TLT. It can experience larger price swings, especially in uncertain economic conditions.

- Interest Rate Impact: Lower interest rates can benefit growth stocks by reducing borrowing costs and increasing the present value of future earnings. However, ARKK's performance is more influenced by the success of its underlying companies than by interest rates alone.

Considerations

- Risk Tolerance: If you prefer stability and lower risk, TLT might be more suitable. If you're willing to take on more risk for the potential of higher returns, ARKK could be a better choice.

- Investment Horizon: TLT might be better for a conservative, long-term strategy, while ARKK could be more appropriate for a long-term growth strategy with higher risk tolerance.