Constructing a properly diversified portfolio of long term investments is crucial for investors seeking stable growth over time. By balancing various asset classes and investment styles, investors can aim to maximize returns while minimizing risk. Mutual funds provide an accessible option to gain broad exposure and diversification. Combining index funds tracking major market sectors with actively managed funds focusing on specific strategies allows investors to balance market risk and tap into active managers’ expertise. Allocating assets across geographic regions also smooths volatility. Maintaining discipline through periodic rebalancing curbs overexposure and forces diversification. For long term investors, the following key mutual funds help create a resilient portfolio.

Low-Cost Index Funds Tracking Broad Market Segments Provide Core Holdings
Index funds like Vanguard’s S&P 500 fund (VOO) offer core equity exposure, providing access to a wide sector of the overall US stock market. Similarly, Fidelity’s Total Bond Market Index Fund (FSKAX) captures the entire US bond universe. Total US and international stock market index funds grant inexpensive diversity. Combining US, international developed and emerging market funds gives geographic diversification. A core holding in an index fund offers market-like returns on autopilot. They incur minimal costs while providing significant diversification.
Strategic Beta Funds Tilt Toward Rewarded Factors
Strategic beta funds specifically target rewarded factors empirically shown to outperform the broader market. For instance, DFA US Targeted Value (DFFVX) focuses on small cap value stocks with low price/book ratios which historically earn premiums. Bridgeway Large Cap Value (BRLVX) homes in on undervalued large company stocks. Tilting toward factors like value and small cap size while minimizing trading costs can modestly beat benchmark returns.
Specialized Sector Funds Allow Tactical Bets
Sector funds grant exposure to specific segments like healthcare, technology, energy and financials. Fidelity Select Healthcare (FSPHX) provides concentrated biotech and pharma exposure. Fidelity Select Software & IT Services (FSCSX) captures booming software stocks. Alternately, Vanguard Energy Index (VDE) offers one-ticket energy diversification. Sector funds permit tactical bets on industries poised to benefit from economic and market conditions.
Target Date Funds Provide Hands-Off Allocation
Target date funds offer automatic rebalancing and shifting toward conservative assets over time. T. Rowe Price Retirement Funds and Vanguard Target Retirement Funds gradually dial down equities and dial up bonds as the target retirement year approaches. This prevents investors from having to constantly rebalance their own portfolios. Target date funds make diversification across many asset classes easy.
Constructing long term investment portfolios demands balancing various asset classes, sectors, factors, and regions to optimize risk-adjusted returns. Low-cost index funds offer inexpensive core holdings tracking market segments. Strategic beta funds home in on rewarded factors. Specialized sector funds facilitate tactical allocation. Target date funds automate rebalancing over time. In combination, these core mutual fund types help craft resilient portfolios suited for long term investors.