Fewer than 100 financial institutions could be adversely affected by a proposed Federal Housing Finance Agency rule to tweak membership criteria for the 12 Federal Home Loan Banks, the agency’s head told the Senate Banking, Housing and Urban Affairs Committee last week. In his first oversight hearing appearance since assuming office in January, FHFA Director Mel Watt said the agency’s “preliminary review” has found of the 7,500 FHLBank member institutions less than 100 may potentially be negatively impacted.