Company: WAL-PA
Filing Date: 2025-11-03
Form Type: 10-Q
Source: 0001628280-25-047883
Chunk: 294

Company: WESTERN ALLIANCE BANCORPORATION
Filing Date: 2025-11-03
Form: 10-Q
Item: Part I, Item 8
Chunk 294
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 and $721 million, respectively. These increases were partially offset by a decrease in interest income from loans HFI of $7.2 million as lower loan yields outweighed the increase in the average balance of $3.4 billion. 

For the nine months ended September 30, 2025, interest income was $3.5 billion, an increase of $73.0 million, or 2.1%, compared to $3.4 billion for the nine months ended September 30, 2024. This increase was primarily the result of an increase of $69.6 million in interest income from investment securities primarily due to an increase in the average investment balance of $2.3 billion and interest income from loans HFS of $68.6 million driven by a higher average balance of $1.5 billion. These increases were partially offset by a $38.9 million decrease in interest income from loans HFI driven by lower yields net of a $3.8 billion increase in the average balance.

For the three months ended September 30, 2025, interest expense totaled $475.1 million, a decrease of $28.0 million, or 5.6%, compared to $503.1 million for the three months ended September 30, 2024. The decrease in interest expense related to decreases in interest expense on deposits of $23.9 million due to lower rates and short-term borrowings of $27.6 million due to lower rates and a lower average balance of $1.6 billion. These decreases were partially offset by increases of $4.9 billion and $2.3 billion in average interest bearing deposits and long-term debt, respectively.

For the nine months ended September 30, 2025, interest expense was $1.4 billion, a decrease of $73.2 million, or 5.0%, compared to $1.5 billion for the nine months ended September 30, 2024. Interest expense on short-term borrowings decreased 

69

$83.7 million due to a decrease in the average balance of $1.6 billion in conjunction with lower rates, while interest expense on deposits decreased $58.7 million for the same period driven by lower rates net of a $4.5 billion increase in average interest bearing deposits. These decreases were partially offset by a $74.0 million increase in interest expense on long-term debt resulting from an increase in average balances of $2.2 billion. 

For the three months ended September