MBB Shares Outstanding History — iShares Trust - iShares MBS ETF Share Count Over Time

As of 12/10/2024 iShares Trust - iShares MBS ETF has 387.10 million MBB shares outstanding. Investors often track the MBB shares outstanding history to compare shareholder return trends against the change in share count over time.

This page shows MBB share count trends over time, with 589 historical shares outstanding datapoints presented, dating back to 1/4/2010.

Quick links: Shares Outstanding History Table | Shares Outstanding History Chart | About iShares Trust - iShares MBS ETF

Below is a table of the MBB shares outstanding history going back to 1/4/2010:

Date	MBB Shares Outstanding
1/4/2010	16.60M
1/6/2010	16.70M
2/11/2010	16.80M
2/18/2010	16.70M
3/11/2010	16.20M
3/29/2010	16.50M
5/11/2010	16.60M
5/17/2010	16.80M
5/18/2010	16.90M
5/19/2010	17.00M
6/4/2010	17.30M
6/15/2010	17.40M
6/17/2010	17.70M
6/18/2010	17.80M
6/28/2010	17.90M
6/30/2010	18.00M
7/6/2010	18.10M
7/9/2010	18.50M
7/28/2010	18.60M
8/16/2010	18.70M
8/31/2010	18.80M
9/15/2010	19.10M
9/30/2010	19.20M
10/4/2010	20.10M
10/20/2010	20.20M
10/21/2010	20.30M
10/22/2010	20.40M
10/29/2010	20.70M
11/26/2010	20.90M
12/9/2010	21.10M
1/28/2011	21.40M
2/4/2011	21.60M
2/24/2011	22.10M
2/28/2011	22.20M
3/7/2011	22.30M
3/8/2011	22.50M
3/18/2011	23.30M
3/30/2011	23.50M
3/31/2011	23.60M
4/5/2011	24.30M
4/8/2011	24.70M
4/29/2011	25.00M
5/2/2011	25.10M
5/6/2011	25.20M
5/12/2011	25.40M
5/17/2011	25.70M
5/18/2011	26.00M
5/23/2011	26.10M
5/26/2011	26.80M
6/1/2011	27.10M
6/10/2011	26.80M
6/23/2011	26.50M
7/6/2011	26.30M
7/11/2011	26.00M
7/12/2011	26.10M
7/13/2011	25.80M
7/14/2011	25.90M
7/15/2011	25.80M
8/1/2011	26.20M
8/5/2011	26.50M
8/22/2011	26.80M
8/23/2011	26.90M
8/26/2011	29.30M
8/30/2011	29.40M
8/31/2011	29.70M
9/2/2011	30.30M
9/7/2011	30.40M
9/12/2011	31.20M
9/15/2011	31.40M
9/20/2011	31.60M
9/27/2011	31.70M
9/29/2011	32.40M
10/4/2011	32.30M
10/5/2011	32.50M
10/11/2011	32.60M
10/14/2011	32.90M
10/19/2011	33.10M
10/20/2011	32.20M
10/28/2011	32.30M
11/7/2011	33.50M
11/10/2011	33.70M
11/15/2011	34.00M
11/17/2011	34.70M
11/18/2011	34.90M
11/28/2011	35.10M
12/6/2011	36.00M
12/15/2011	36.40M
12/23/2011	37.10M
2/6/2012	39.30M
2/8/2012	39.50M
2/10/2012	39.60M
2/17/2012	41.60M
2/23/2012	42.00M
2/27/2012	42.30M
2/29/2012	42.50M
3/6/2012	42.80M
3/8/2012	43.60M
3/12/2012	43.90M
3/15/2012	44.10M
3/19/2012	44.30M
3/21/2012	44.60M
3/26/2012	45.00M
3/28/2012	45.20M
3/30/2012	45.30M
4/3/2012	45.50M
4/9/2012	45.90M
4/11/2012	46.10M
4/13/2012	46.50M
4/17/2012	46.60M
4/23/2012	46.80M
4/25/2012	46.30M
5/3/2012	46.50M
5/9/2012	46.70M
5/15/2012	46.80M
5/17/2012	47.10M
5/21/2012	47.40M
5/23/2012	47.60M
5/25/2012	47.80M
5/31/2012	48.10M
6/4/2012	48.40M
6/7/2012	48.70M
6/25/2012	48.90M
6/27/2012	49.20M
7/10/2012	49.50M
7/16/2012	49.60M
7/23/2012	50.10M
7/25/2012	50.30M
7/31/2012	50.40M
8/8/2012	50.80M
8/10/2012	50.90M
8/14/2012	51.20M
8/20/2012	51.60M
8/23/2012	51.80M
8/31/2012	52.10M
9/5/2012	52.40M
9/7/2012	52.90M
9/12/2012	53.40M
9/14/2012	53.60M
9/18/2012	52.10M
9/20/2012	54.20M
9/24/2012	54.60M
9/26/2012	54.80M
10/2/2012	55.50M
10/4/2012	55.70M
10/8/2012	55.80M
10/12/2012	55.90M
10/16/2012	56.20M
10/22/2012	58.30M
10/24/2012	58.40M
10/26/2012	58.70M
10/31/2012	58.80M
11/2/2012	59.00M
11/6/2012	59.20M
11/12/2012	58.90M
11/20/2012	58.80M
11/28/2012	58.90M
11/30/2012	60.30M
12/4/2012	60.60M
12/10/2012	60.50M
12/20/2012	60.40M
12/31/2012	60.30M
1/3/2013	59.90M
1/7/2013	58.50M
1/9/2013	58.40M
1/16/2013	58.80M
1/18/2013	58.30M
1/23/2013	57.90M
2/1/2013	57.80M
2/6/2013	57.70M
2/15/2013	57.90M
2/20/2013	58.10M
2/22/2013	58.50M
2/27/2013	58.40M
3/5/2013	58.50M
3/7/2013	58.90M
3/15/2013	58.70M
3/19/2013	58.10M
3/21/2013	58.00M
4/9/2013	59.70M
4/12/2013	59.80M
4/18/2013	59.70M
4/24/2013	60.00M
4/26/2013	61.60M
5/15/2013	62.50M
5/24/2013	61.00M
5/29/2013	60.80M
5/31/2013	60.30M
6/4/2013	59.20M
6/6/2013	59.10M
6/12/2013	58.30M
6/21/2013	56.60M
6/25/2013	55.60M
6/27/2013	55.30M
7/2/2013	55.40M
7/12/2013	54.90M
7/16/2013	54.60M
7/18/2013	54.50M
7/22/2013	54.30M
7/24/2013	54.00M
8/7/2013	53.80M
8/14/2013	53.90M
8/23/2013	53.80M
8/27/2013	53.70M
8/29/2013	53.60M
9/3/2013	53.50M
9/11/2013	52.60M
9/13/2013	52.40M
9/18/2013	51.80M
9/20/2013	51.30M
9/26/2013	51.20M
10/2/2013	52.40M
10/7/2013	53.00M
10/11/2013	52.70M
10/17/2013	52.50M
10/21/2013	52.30M
10/25/2013	52.40M
10/29/2013	53.40M
11/1/2013	54.00M
11/13/2013	53.40M
11/15/2013	52.60M
11/19/2013	52.50M
11/21/2013	52.40M
12/2/2013	52.60M
12/4/2013	51.20M
12/6/2013	50.40M
12/10/2013	50.30M
12/12/2013	50.40M
12/17/2013	50.20M
12/19/2013	49.90M
12/26/2013	49.60M
12/31/2013	49.50M
1/7/2014	49.30M
1/9/2014	49.20M
1/13/2014	49.10M
1/21/2014	48.70M
1/24/2014	48.50M
2/3/2014	48.80M
2/5/2014	50.80M
2/10/2014	50.70M
2/12/2014	51.10M
2/18/2014	51.80M
2/27/2014	52.00M
3/3/2014	52.20M
3/6/2014	52.50M
3/12/2014	52.60M
3/24/2014	52.70M
3/26/2014	52.40M
3/31/2014	51.70M
4/3/2014	49.80M
4/7/2014	49.60M
4/11/2014	50.10M
4/15/2014	50.30M
4/22/2014	49.20M
4/24/2014	49.40M
4/28/2014	50.00M
4/30/2014	52.00M
5/12/2014	52.30M
5/14/2014	52.40M
5/16/2014	52.60M
5/20/2014	53.00M
5/22/2014	53.20M
5/29/2014	53.40M
6/2/2014	53.50M
6/16/2014	53.80M
6/27/2014	54.30M
7/1/2014	54.50M
8/15/2014	56.60M
8/22/2014	56.70M
8/28/2014	56.90M
8/29/2014	57.10M
9/11/2014	57.20M
9/15/2014	57.60M
9/23/2014	57.70M
9/24/2014	57.90M
9/25/2014	58.00M
9/26/2014	58.10M
9/30/2014	58.20M
10/1/2014	61.40M
10/2/2014	62.00M
10/3/2014	62.10M
10/6/2014	62.70M
10/13/2014	59.70M
10/14/2014	59.70M
10/24/2014	60.00M
10/31/2014	60.10M
11/3/2014	60.20M
11/5/2014	60.50M
11/10/2014	60.80M
11/17/2014	60.20M
11/20/2014	60.50M
11/21/2014	60.60M
11/25/2014	60.80M
12/2/2014	61.40M
12/3/2014	61.50M
12/8/2014	61.60M
12/11/2014	61.90M
12/15/2014	62.00M
12/16/2014	62.30M
12/17/2014	62.50M
12/22/2014	63.10M
12/23/2014	63.20M
12/31/2014	63.30M
1/5/2015	63.20M
1/9/2015	63.10M
1/12/2015	63.30M
1/13/2015	63.40M
1/15/2015	63.50M
1/16/2015	62.90M
1/20/2015	62.30M
1/21/2015	61.80M
1/22/2015	62.70M
1/23/2015	62.60M
1/28/2015	62.30M
1/30/2015	62.40M
2/4/2015	62.30M
2/18/2015	62.40M
2/19/2015	62.50M
2/20/2015	62.30M
3/2/2015	62.50M
3/4/2015	62.70M
3/5/2015	62.80M
3/10/2015	63.00M
3/11/2015	63.10M
3/12/2015	63.20M
3/16/2015	63.40M
3/18/2015	63.50M
3/23/2015	63.80M
3/27/2015	63.90M
3/30/2015	64.00M
4/1/2015	64.10M
4/7/2015	64.30M
4/13/2015	61.30M
4/14/2015	61.00M
4/17/2015	60.20M
4/23/2015	60.10M
4/29/2015	60.30M
5/1/2015	61.00M
5/7/2015	61.10M
5/14/2015	61.00M
5/15/2015	60.70M
5/20/2015	60.80M
5/21/2015	60.60M
5/22/2015	60.50M
6/1/2015	60.60M
6/10/2015	60.70M
6/11/2015	60.90M
6/15/2015	61.00M
6/18/2015	62.60M
6/19/2015	63.10M
6/22/2015	64.20M
6/24/2015	64.40M
6/29/2015	64.50M
6/30/2015	64.40M
7/1/2015	64.50M
7/7/2015	64.40M
7/9/2015	64.50M
7/15/2015	64.60M
7/17/2015	64.90M
7/22/2015	67.00M
7/24/2015	67.10M
7/28/2015	66.00M
7/30/2015	66.30M
7/31/2015	66.40M
8/3/2015	66.50M
8/4/2015	66.60M
8/5/2015	67.00M
8/7/2015	67.10M
8/14/2015	67.20M
8/17/2015	67.10M
8/18/2015	67.20M
8/19/2015	67.30M
8/24/2015	67.40M
8/26/2015	66.60M
8/27/2015	67.10M
8/28/2015	68.30M
9/2/2015	68.50M
9/3/2015	68.60M
9/8/2015	68.80M
9/17/2015	68.90M
9/23/2015	69.10M
10/1/2015	69.20M
10/2/2015	70.50M
10/5/2015	71.20M
10/6/2015	71.60M
10/7/2015	70.30M
10/9/2015	70.60M
10/12/2015	70.80M
10/14/2015	70.90M
10/16/2015	70.70M
10/21/2015	70.60M
10/23/2015	70.10M
10/26/2015	69.90M
10/27/2015	69.60M
11/2/2015	69.50M
11/6/2015	69.10M
11/9/2015	68.80M
11/11/2015	69.40M
12/28/2015	70.00M
12/31/2015	70.10M
1/5/2016	69.60M
1/6/2016	69.30M
1/12/2016	69.40M
1/13/2016	69.50M
1/14/2016	69.60M
1/20/2016	69.90M
1/27/2016	68.20M
2/2/2016	69.50M
2/5/2016	69.60M
2/10/2016	69.90M
2/12/2016	70.00M
2/19/2016	70.10M
2/24/2016	70.30M
2/25/2016	70.40M
3/2/2016	70.50M
3/3/2016	71.10M
3/4/2016	71.20M
3/9/2016	71.40M
3/10/2016	71.60M
3/11/2016	71.70M
3/14/2016	71.90M
3/17/2016	72.00M
3/21/2016	71.20M
3/24/2016	71.30M
3/30/2016	71.40M
4/1/2016	71.90M
4/4/2016	71.80M
4/5/2016	73.00M
4/6/2016	73.20M
4/7/2016	73.10M
4/11/2016	73.20M
4/14/2016	73.40M
4/21/2016	73.50M
4/27/2016	74.10M
4/29/2016	74.50M
5/2/2016	75.00M
5/5/2016	75.20M
5/6/2016	75.40M
5/11/2016	75.50M
5/20/2016	76.70M
5/24/2016	76.60M
6/1/2016	76.70M
6/3/2016	77.00M
6/7/2016	77.20M
6/8/2016	77.40M
6/9/2016	77.20M
6/10/2016	77.60M
6/13/2016	77.90M
6/15/2016	78.00M
6/17/2016	78.10M
6/23/2016	77.30M
7/6/2016	77.10M
7/8/2016	77.30M
7/11/2016	77.40M
7/12/2016	78.80M
7/14/2016	78.90M
7/20/2016	79.10M
7/21/2016	79.20M
7/22/2016	79.90M
7/26/2016	80.20M
7/27/2016	80.30M
7/28/2016	80.40M
8/1/2016	80.50M
8/3/2016	80.70M
8/10/2016	80.90M
8/11/2016	81.20M
8/12/2016	81.60M
8/16/2016	81.80M
8/22/2016	81.90M
9/8/2016	82.10M
9/14/2016	82.20M
9/19/2016	82.30M
9/23/2016	82.40M
10/4/2016	82.80M
10/5/2016	83.00M
10/6/2016	83.40M
10/7/2016	83.60M
10/12/2016	83.90M
10/13/2016	84.10M
10/17/2016	84.20M
10/18/2016	84.40M
10/19/2016	84.50M
10/20/2016	84.60M
10/21/2016	84.70M
10/24/2016	84.80M
10/28/2016	85.10M
11/1/2016	85.30M
11/2/2016	85.50M
11/4/2016	85.60M
11/8/2016	85.70M
11/9/2016	86.00M
11/10/2016	86.20M
11/11/2016	86.00M
11/15/2016	85.70M
11/18/2016	85.80M
11/21/2016	85.90M
11/23/2016	85.80M
12/1/2016	85.90M
12/2/2016	86.20M
12/5/2016	86.30M
12/9/2016	86.10M
12/14/2016	86.30M
12/16/2016	86.20M
12/19/2016	86.00M
12/23/2016	86.50M
12/27/2016	86.70M
1/6/2017	86.60M
1/12/2017	86.80M
1/17/2017	86.90M
1/19/2017	87.00M
1/23/2017	87.30M
1/27/2017	93.00M
1/31/2017	93.30M
2/1/2017	93.60M
2/2/2017	94.00M
2/3/2017	94.20M
2/9/2017	94.10M
2/10/2017	93.70M
2/13/2017	93.80M
2/15/2017	93.90M
2/16/2017	94.20M
2/22/2017	95.60M
2/24/2017	96.00M
2/27/2017	96.40M
2/28/2017	95.80M
3/1/2017	95.90M
3/2/2017	96.20M
3/9/2017	95.60M
3/13/2017	95.30M
3/15/2017	95.20M
3/17/2017	95.30M
3/24/2017	95.40M
3/27/2017	95.50M
3/29/2017	95.70M
3/31/2017	95.80M
4/3/2017	96.20M
4/5/2017	96.50M
4/6/2017	96.60M
4/7/2017	97.00M
4/10/2017	97.20M
4/12/2017	97.30M
4/19/2017	98.10M
4/20/2017	98.40M
4/21/2017	98.60M
6/23/2017	99.10M
6/27/2017	99.20M
6/28/2017	98.90M
6/29/2017	95.60M
7/5/2017	95.30M
7/12/2017	95.40M
7/17/2017	95.50M
7/18/2017	96.20M
7/19/2017	96.30M
7/20/2017	96.40M
7/21/2017	96.50M
7/25/2017	96.40M
7/28/2017	98.60M
8/4/2017	99.40M
8/8/2017	99.60M
8/9/2017	99.80M
8/10/2017	100.00M
8/14/2017	100.30M
8/16/2017	100.70M
8/18/2017	100.90M
8/22/2017	101.00M
8/25/2017	101.20M
8/28/2017	100.90M
9/5/2017	101.20M
9/7/2017	101.30M
9/8/2017	101.40M
9/11/2017	101.80M
9/12/2017	102.20M
9/13/2017	102.70M
9/15/2017	102.80M
9/18/2017	102.60M
9/19/2017	102.70M
9/20/2017	102.80M
9/25/2017	103.00M
9/28/2017	103.10M
10/2/2017	103.20M
10/3/2017	104.00M
10/4/2017	104.10M
10/9/2017	104.20M
10/11/2017	105.20M
10/12/2017	106.30M
10/13/2017	106.60M
10/16/2017	107.00M
10/17/2017	107.10M
10/19/2017	107.60M
12/10/2024	387.10M

Also see: MBB Market Cap History
MBB YTD Return

MBB Historical Shares Outstanding:
+23.46% CAGR

Mouse over chart for data details

1/4/2010

...

12/10/2024

iShares MBS ETF (the “Fund”) seeks to track the investment results of an index composed of investment-grade mortgagebacked pass-through securities issued and/ or guaranteed by U.S. government agencies, as represented by the Barclays U.S. MBS Index (the “Index”). The Fund invests in a representative sample of securities included in the Index that collectively has an investment profile similar to the Index. Due to the use of representative sampling, the Fund may or may not hold all of the securities that are included in the Index. As of Feb 28 2015, the Fund's total assets and investment portfolio totaled $10,702,399,437 and $10,580,444,216, respectively. We show 589 historical shares outstanding datapoints in our coverage of MBB's shares outstanding history.

Understanding the changing numbers of MBB shares outstanding — and comprehending the concept of differing number of shares outstanding in general comparing companies like MBB versus peers — is critical for investors. Many "beginner" or "novice" investors will look at one stock trading at a price of $10 per share and another trading at a price of $20 per share and think the latter company is worth twice as much. Of course, that is a completely meaningless comparison without also knowing how many shares outstanding there are for each of the two companies. Furthermore, via issuance of new shares over time, or the repurchase of existing shares, the number of shares outstanding can fluctuate over the course of history. With this page we aim to empower investors researching MBB by allowing them to research MBB shares outstanding history as well as any other stock in our coverage universe.

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Video: Shares Outstanding Importance

iShares Trust - iShares MBS ETF (MBB) is categorized under the Financials sector; to help you further research historical shares outstanding numbers, below are some other companies in the same sector:

MBCN Shares Outstanding History
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MBB Shares Outstanding History — iShares Trust - iShares MBS ETF Share Count Over Time

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