The top three mutual fund holders of Alphabet Inc. (GOOGL) stock include the Vanguard Total Stock Market Index Fund, Vanguard 500 Index Fund, and the Fidelity Contrafund Fund. Together, the mutual funds own 3.6% of Alphabet.

Alphabet became the holding company for Google on October 2, 2015. One reason for this restructuring was to enable Alphabet's several subsidiaries to have a more focused view on their businesses. As a result, Alphabet reports its earnings in two segments: in "Google," which includes Android, Chrome, and YouTube, and also in "Other Bets," which includes CapitalG, Waymo, and X. As of October 25, 2018, Alphabet has a market cap of $767.8 billion.

Vanguard Total Stock Market Index Fund (VTSMX)

The Vanguard Total Stock Market Index Fund (VTSMX), launched in 1992, aims to reflect the performance of the overall stock market by acting as a benchmark index. VTSMX is the largest mutual fund holder of Alphabet and owns 7.5 million shares of the company as of October 25, 2018. This accounts for 1.09% of total shares held.

As of October 25, 2018, VTSMX has $756.6 billion in assets under management (AUM), an expense ratio of 0.14%, a turnover ratio of 3%, and requires a minimum investment of $3,000. Alphabet accounts for 1.20% of VTSMX's total assets. 

Vanguard 500 Index Fund (VFINX)

Founded in 1976, the Vanguard 500 Index Investor (VFINX) acts a benchmark index and its main focus is on large-cap stocks. Its investment strategy is that of a passively managed fund as it tracks the performance of the S&P 500. VFINX is the second-largest mutual fund holder of Alphabet with 5.5 million shares as of October 25, 2018. This accounts for 0.8% of total shares held and makes up 1.46% of VFINX's portfolio.

As of October 25, 2018, VFINX has $459.3 billion in AUM, an expense ratio of 0.14%, a turnover ratio of 3%, and requires a minimum investment of $3,000.

Fidelity Contrafund Fund (FCNTX)

Fidelity’s Contrafund (FCNTX) was created in 1967. The fund is managed by William Danoff and its stated investment aim is capital appreciation. Stocks are selected for inclusion based on fundamental analysis of the company, the industry the company is engaged in and overall economic conditions. The fund's manager seeks to identify stocks that are undervalued or offer above-average growth potential. FCNTX invests in both U.S. and foreign stocks. 

FCNTX is the third-largest mutual fund holder of Alphabet with 3.5 million shares as of October 25, 2018. FCNTX's investment in Alphabet accounts for 3.23% of its total assets and it holds 0.51% of total shares in Alphabet. As of October 25, 2018, FCNTX has $134.9 billion in AUM, an expense ratio of 0.74%, a turnover ratio of 29%, and requires a minimum investment of $2,500.