Apple Inc. (AAPL) is one of the largest technology companies in the world and the first U.S. company to reach a market valuation of $1 trillion. As of November 1, 2018, the company's market capitalization is $1.06 trillion.

Here are the four largest mutual funds betting on Apple, Inc.

Vanguard Total Stock Market Index (VTSMX)

The Vanguard Total Stock Market Index Fund is known on Wall Street as a one-stop shop for a wide variety of small and large cap stocks. The fund seeks to capture returns on the entire stock market and holds over 3,680 stocks. While the composition of VTSMX is not much different from S&P 500 ETFs, its investment in many small-cap stocks has kept it above others for several years. Approximately 20.1% of the fund's assets are invested in technology stocks, with Apple being the largest of its assets. As of November 2018, the fund owns more than 110.5 million shares of Apple, amounting to 2.29% of the company's outstanding stock. Apple shares account for 3.28% of the fund's $756.6 billion portfolio.

The fund's expense ratio is 0.14%, just a few points below the category average. The fund's three-year annualized return is 11.15%.

Vanguard 500 Index Fund (VFINX)

Another fund tracking the S&P 500, the Vanguard 500 Index Fund gives different levels of weight to the stocks it invests in based on their position in the S&P list. With net assets of $459.3 billion as of November 2018, the fund's asset allocation skews in favor of information technology and financials, forming 21% and 13.3% of its portfolio, respectively. The company holds 85.4 million shares of Apple, or 1.77% of the company, making it the second-largest mutual fund investor in Apple. Shares of Apple account for 4.19% of the fund's total assets.

The expense ratio for VFINX is 0.14%. The fund has a three-year annualized return of 11.37%.

SPDR S&P 500 ETF (SPY)

The Standard and Poor's depository receipts, also known as a SPDR or "spider", was put into the market in 1993 by State Street Global Advisors. The ETF's main function is to replicate the performance of the S&P 500. Each share of SPY owns a small portion in all 500 stocks in the S&P 500. SPY is bought and sold much like stocks, but instead of making a bet on one particular company, you're making a bet on the market as a whole. SPY is invested heavily in technology, with 22.47% of its holdings dedicated to the sector as of November 2018. The fund holds 51.1 million shares, about 1.06%, of all Apple stock, making it the company's third-largest mutual fund holder. Apple shares account for 4.22% of the fund's $258.17 billion portfolio.

The expense ratio for SPY is 0.09%, well below category average for other funds.

Vanguard Institutional Index Fund I (VINIX)

This large-blend Vanguard Group fund, launched in 1990, is currently managed by Donald Butler. The fund seeks capital appreciation and dividend income by investing in all 500 stocks that make up the S&P 500 benchmark index. VINIX remains fully invested in equities at all times. The top two market sectors represented in the underlying index and in the fund’s holdings are financials and technology, with the sectors accounting for 13.3% and 21% of its portfolio, respectively. With 43.7 million shares of Apple as of November 2018, the fund weighs in as the company's fourth largest mutual fund holder. VINIX's bet on Apple accounts for 4.20% of the fund's $235.2 billion portfolio.

The fund’s expense ratio is very low, at 0.04%. The three-year annualized return is 11.49%.