All-cap mutual funds invest in companies of all sizes. All-capitalization mutual funds invest in companies without a bias towards the capitalization of the company.

In every mutual fund’s prospectus, the stated objective of the fund will be outlined, as well as the agreed-upon asset allocation guidelines. Deviation from these parameters can put fund managers in hot water with regulatory groups like the SEC.

If a mutual fund has agreed to find quality investments in companies of all sizes, it can be called an all-cap fund. Other fund categories according to the market cap of the companies they invest in are mega-cap, large-cap, mid-cap, small-cap, micro-cap, and nano-cap, but this is not an exhaustive list.

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