Which is the best s&p500 to invest now?

If you're investing more than $600 each time, you might want to look into CSPX because it has lower dividend withholding tax and your dividends are automatically reinvested. On the other hand, if you're investing less than $600, considering US-based ETFs like VOO could be a good option. Remember to compare the expense ratios and liquidity of different ETFs to find the one with the lowest costs and sufficient market liquidity.

VOO, SPY, and IVV are all popular ETFs (exchange-traded funds) that track the S&P 500 index. They are all quite similar in terms of what they do and how they perform since they all track the same index. Here are a few factors you might want to consider:

1. Expense Ratio: This is the annual fee that all funds or ETFs charge their shareholders. It represents the percentage of your invested funds that will go toward the fund's annual operating costs. VOO (Vanguard S&P 500 ETF) typically has a slightly lower expense ratio compared to SPY (SPDR S&P 500 ETF Trust) and IVV (iShares Core S&P 500 ETF), but the differences are quite small and may have changed since then.
2. Liquidity: If you plan on actively trading your ETF, then SPY is often the most liquid of the three, meaning it is bought and sold more frequently. This can result in narrower spreads between the bid price and the ask price, which could save you money when buying or selling.
3. Dividend Handling: IVV and VOO use a system that reinvests dividends immediately into the fund, while SPY holds them in cash until they are distributed to shareholders. This could potentially result in slightly different returns over time.
4. Tax Considerations: Depending on your individual tax situation, one ETF might be more beneficial than another. It's advisable to speak to a tax advisor if this is a concern.

Overall, these three ETFs are all solid choices for S&P 500 index exposure and the best one for you will depend on your individual circumstances and priorities. Please note that investing always involves risk, including the potential loss of principal, and it's important to do your own research before making an investment decision. You should also consider consulting with a financial advisor to understand the options fully.