IndyMac reported that during April 2008, Moody's and Standard & Poor's downgraded the ratings on a significant number of Mortgage-backed security (MBS) bonds including $160 million of those issued by Indymac and which the bank retained in its MBS portfolio. Indymac concluded that these downgrades would have negatively impacted the Company's risk-based capital ratio as of June 30, 2008. Had these lowered ratings been in effect at March 31, 2008, Indymac concluded that the bank's capital ratio would have been 9.27% total risk-based. Indymac warned that if its regulators found its capital position to have fallen below “well capitalized” (minimum 10% risk-based capital ratio) to “adequately capitalized” (8-10% risk-based capital ratio) the bank might no longer be able to use brokered deposits as a source of funds. Indymac further warned that if its level of deposit liquidity was reduced in this way, the bank anticipated that it would reduce its assets and, most likely, curtail its lending activities. This statement was comparable to those adopted by other Southern California banks that were experiencing liquidity problems, such as Pomona First Federal (PFF) and Vineyard Bank.