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MYI
Volume: 45.59K
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MYI Market Capitalization Overview

Market Cap: $737.13M as of Oct 13, 2025

$737.13M
Past Month+$3.99M (0.54%)
As of Oct 13, 2025, MYI has a market capitalization of $737.13M. Over the past 30 days, its market cap has increased by 4.73%, while in the last 12 months, it has increased by 0.45%.

Market capitalization represents the total value of BlackRock MuniYield Quality Fund III Inc as perceived by the stock market. It is calculated by multiplying the current stock price by the total number of outstanding shares.

MYI Market Cap Formula = Stock Price * Shares Outstanding

The market cap of MYI helps investors assess the company's size and compare it with competitors for better investment decisions.

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MYI Market Cap History

DateMarket CapChange
Oct 1, 2025$735.13M+4.73%
Sep 2, 2025$701.90M+1.83%
Aug 1, 2025$689.27M-1.71%
Jul 1, 2025$701.23M+0.86%
Jun 2, 2025$695.25M-1.32%
May 1, 2025$704.56M-3.64%
Apr 1, 2025$731.15M-1.96%
Mar 3, 2025$745.77M+0.54%
Feb 3, 2025$741.78M+0.36%
Jan 2, 2025$739.12M-3.97%

MYI End of Year Market Cap History

DateMarket CapChange
2025$737.13M+0.45%
2024$733.80M-7.50%
2023$793.28M+3.84%
2022$763.97M-24.36%
2021$1.01B+2.56%
2020$984.75M—

FAQs About BlackRock MuniYield Quality Fund III Inc (MYI) Market Cap

As of Oct 13, 2025, the market capitalization of MYI is $737.13M. Market cap represents the total value of a company’s outstanding shares and is a key indicator of its size in the stock market.

In the last 30 days, BlackRock MuniYield Quality Fund III Inc’s market capitalization has increased by 0.5400%, changing from $733.14M to $737.13M as of Oct 13, 2025.

In the last 3 months, BlackRock MuniYield Quality Fund III Inc’s market capitalization has increased by —, changing from – to – as of –.

In the year 2024, BlackRock MuniYield Quality Fund III Inc’s market capitalization decreased from $793.28M in January to $733.80M in December, reflecting a -7.5% change.

In the past five years, MYI has had a compound annual growth rate (CAGR) of -5.71% in market capitalization. This means its market cap has shrunk at an average rate of -5.71% per year.

BlackRock MuniYield Quality Fund III Inc (MYI)

Volume: 45.59K

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Stocks, ETFs, Options, Bonds.
Self-directed brokerage accounts and brokerage services for US-listed, registered securities, options, and Bonds, except for treasury securities offered through Jiko Securities, Inc., are offered to self-directed customers by Open to the Public Investing, Inc. (“Public Investing”), a registered broker-dealer and member of FINRA & SIPC. Additional information about your broker can be found by clicking here. Public Investing is a wholly-owned subsidiary of Public Holdings, Inc. (“Public Holdings”). This is not an offer, solicitation of an offer, or advice to buy or sell securities or open a brokerage account in any jurisdiction where Public Investing is not registered. Securities products offered by Public Investing are not FDIC insured. Apex Clearing Corporation, our clearing firm, has additional insurance coverage in excess of the regular SIPC limits. Additional information can be found here.

Options.
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Bonds.
“Bonds” shall refer to corporate debt securities and U.S. government securities offered on the Public platform through a self-directed brokerage account held at Public Investing and custodied at Apex Clearing. For purposes of this section, Bonds exclude treasury securities held in treasury accounts with Jiko Securities, Inc. as explained under the “ Treasury Accounts” section.

Investments in Bonds are subject to various risks including risks related to interest rates, credit quality, market valuations, liquidity, prepayments, early redemption, corporate events, tax ramifications and other factors. The value of Bonds fluctuate and any investments sold prior to maturity may result in gain or loss of principal. In general, when interest rates go up, Bond prices typically drop, and vice versa. Bonds with higher yields or offered by issuers with lower credit ratings generally carry a higher degree of risk. All fixed income securities are subject to price change and availability, and yield is subject to change. Bond ratings, if provided, are third party opinions on the overall bond's credit worthiness at the time the rating is assigned. Ratings are not recommendations to purchase, hold, or sell securities, and they do not address the market value of securities or their suitability for investment purposes.

A Bond Account is a self-directed brokerage account with Public Investing. Deposits into this account are used to purchase 10 investment-grade and high-yield bonds. The Bond Account’s yield is the average, annualized yield to worst (YTW) across all ten bonds in the Bond Account, before fees. A bond’s yield is a function of its market price, which can fluctuate; therefore a bond’s YTW is not “locked in” until the bond is purchased, and your yield at time of purchase may be different from the yield shown here. The “locked in” YTW is not guaranteed; you may receive less than the YTW of the bonds in the Bond Account if you sell any of the bonds before maturity or if the issuer defaults on the bond. Public Investing charges a markup on each bond trade. See our Fee Schedule.

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Fractional Bonds also carry additional risks including that they are only available on Public and cannot be transferred to other brokerages. Read more about the risks associated with fixed income and fractional bonds. See Bond Account Disclosures to learn more.

High-Yield Cash Account.
A High-Yield Cash Account is a secondary brokerage account with Public Investing. Funds in your High-Yield Cash Account are automatically deposited into partner banks (“Partner Banks”), where that cash earns interest and is eligible for FDIC insurance. See here for a list of current Partner Banks. Your Annual Percentage Yield is variable and may change at the discretion of the Partner Banks or Public Investing. Apex Clearing and Public Investing receive administrative fees for operating this program, which reduce the amount of interest paid on swept cash. Neither Public Investing nor any of its affiliates is a bank. Learn more.

Cryptocurrency.
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Treasury Accounts.
Investing services in treasury accounts offering 6 month US Treasury Bills on the Public platform are through Jiko Securities, Inc. (“JSI”), a registered broker-dealer and member of FINRA & SIPC. See JSI’s FINRA BrokerCheck and Form CRS for further information. JSI uses funds from your Treasury Account to purchase T-bills in increments of $100 “par value” (the T-bill’s value at maturity). T-bills are purchased at a discount to the par value and the T-bill’s yield represents the difference in price between the “par value” and the “discount price.” Aggregate funds in your Treasury Account in excess of the T-bill purchases will remain in your Treasury Account as cash. The value of T-bills fluctuate and investors may receive more or less than their original investments if sold prior to maturity. T-bills are subject to price change and availability - yield is subject to change. Past performance is not indicative of future performance. Investments in T-bills involve a variety of risks, including credit risk, interest rate risk, and liquidity risk. As a general rule, the price of a T-bills moves inversely to changes in interest rates. Although T-bills are considered safer than many other financial instruments, you could lose all or a part of your investment. See Jiko U.S. Treasuries Risk Disclosures for further details.

Investments in T-bills: Not FDIC Insured; No Bank Guarantee; May Lose Value.

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Fractional shares are illiquid outside of Public and not transferable. For a complete explanation of conditions, restrictions and limitations associated with fractional shares, see our Fractional Share Disclosure to learn more.

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Alpha.
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