Best money market funds

The deep research logic is organized as follows: 

Okay, let's tackle the user's question about the best money market funds. First, I need to check the references provided. The user is interested in the NAS Composite Index, so they might be looking for funds that are part of a diversified portfolio. 

Looking at the references, there are several articles listing top money market funds. References 2, 3, 13, and 14 have detailed lists. The user's profile mentions a moderate risk tolerance and a long-term horizon, so I should focus on funds with stability and good yields. 

From Reference 2, the top funds include Vanguard Federal Money Market Fund (VMFXX) with a 4.2% yield and low expense ratio. Reference 3 mentions Schwab Value Advantage Money Fund (SWVXX) with a 4.14% yield. Reference 13 highlights Fidelity Money Market Fund (SPRXX) with a 4.53% yield but a higher expense ratio. 

I should compare the expense ratios and yields. VMFXX has the lowest expense ratio at 0.11% and a competitive yield. SWVXX has a slightly higher expense ratio but a similar yield. SPRXX has a higher expense ratio but also a higher yield. The user might prefer lower fees for long-term holding, so VMFXX could be a top choice. 

Also, considering the user's interest in the broader market, funds with large assets under management like VMFXX (over $350 billion) might offer more stability. The recent outflows in crypto ETFs (Reference 6) don't directly affect money market funds, but it's a good point to mention the safety aspect of money market funds compared to more volatile assets. 

I should structure the answer with a conclusion first, then detailed analysis, including a table of the top funds. Make sure to cite the references properly and include the visualization for the ETF query. The user's profile suggests they appreciate a diversified approach, so highlighting funds with different focuses (like tax-exempt or ESG) could add value. 

Need to ensure the response is clear, uses markdown tables, and includes the necessary citations. Also, check if any of the funds mentioned have recent NAV updates, but the references don't show that. The user's focus is on the NAS Composite, so maybe mention how these funds fit into a diversified portfolio. 

Alright, time to put it all together with the required structure and citations.

**Conclusion**
The best money market funds for 2025 offer a balance of **high yields**, **low expense ratios**, and **diverse investment strategies** to suit different investor needs. Based on recent data , **Vanguard Federal Money Market Fund (VMFXX)** stands out as the top choice due to its **lowest expense ratio (0.11%)** and **competitive 4.2% yield**. Other standout options include **Schwab Value Advantage Money Fund (SWVXX)** for tax-advantaged income and **Fidelity Money Market Fund (SPRXX)** for higher liquidity.

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### 📊 **Top Money Market Funds: Key Metrics**
| Fund Name | Ticker | Expense Ratio | 7-Day SEC Yield | Assets Under Management (AUM) | Key Features |
|------------------------------------|--------|---------------|-----------------|---------------------------------|------------------------------------------------------------------------------|
| Vanguard Federal Money Market Fund | VMFXX | 0.11% | 4.2% | $352B | Low-cost, government-backed securities, ideal for long-term stability . |
| Schwab Value Advantage Money Fund | SWVXX | 0.34% | 4.87% | $241.6B | Tax-exempt income for municipal bonds, best for high-tax states . |
| Fidelity Money Market Fund | SPRXX | 0.42% | 4.03% | $132.9B | High liquidity, corporate and government securities . |
| Vanguard Treasury Money Market Fund| VUSXX | 0.09% | 4.2% | $44.5B | Pure Treasury exposure, ultra-safe for risk-averse investors . |
| BlackRock Wealth Liquid ESG Fund | PINXX | 0.55% | 4.0% | N/A | ESG-focused, excludes controversial issuers . |

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### 📊 **Analysis of Key Funds**
1. **Vanguard Federal Money Market Fund (VMFXX)**
- **Why It’s Top**: Lowest expense ratio (0.11%) and a stable 4.2% yield. Invests in U.S. Treasuries and government agency securities, making it nearly risk-free .
- **Best For**: Long-term investors prioritizing cost efficiency and liquidity.

2. **Schwab Value Advantage Money Fund (SWVXX)**
- **Why It’s Unique**: Offers tax-exempt income for municipal bonds, ideal for high-tax states like New York .
- **Best For**: Investors seeking tax-advantaged income without sacrificing liquidity.

3. **Fidelity Money Market Fund (SPRXX)**
- **Why It’s Liquid**: No minimum investment requirement and high daily trading volume .
- **Best For**: Short-term cash management needs with exposure to corporate and government securities.

4. **Vanguard Treasury Money Market Fund (VUSXX)**
- **Why It’s Safe**: 100% Treasury exposure, making it the safest option for ultra-conservative investors .
- **Best For**: Risk-averse investors who prioritize principal protection over yield.

5. **BlackRock Wealth Liquid ESG Fund (PINXX)**
- **Why It’s ESG-Focused**: Screens out issuers with poor environmental, social, and governance (ESG) records .
- **Best For**: Ethical investors willing to trade a slightly higher expense ratio (0.55%) for alignment with sustainability goals.

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### 📊 **Key Considerations**
- **Expense Ratios**: Lower fees (e.g., VMFXX at 0.11%) compound to significant savings over time .
- **Liquidity**: All funds listed offer daily liquidity, making them ideal for cash reserves .
- **Tax Implications**: Municipal funds like SWVXX provide tax-exempt income, but compare tax-equivalent yields for apples-to-apples analysis .

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### 📊 **Why Money Market Funds?**
- **Safety**: Maintain a stable $1 NAV per share, protecting principal .
- **Yield**: Current rates (4.0%-4.87%) are competitive with savings accounts .
- **Diversification**: Serve as a low-risk complement to the NAS Composite Index, offering stability during market volatility .

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### Final Takeaway
For a **moderate-risk, long-term investor** focused on the NAS Composite Index, **Vanguard Federal Money Market Fund (VMFXX)** is the optimal choice due to its **low cost**, **high liquidity**, and **alignment with a diversified portfolio**. Schwab Value Advantage (SWVXX) and Fidelity Money Market (SPRXX) are strong alternatives for tax-advantaged income and short-term liquidity needs, respectively.