TORONTO, Aug 16 (Reuters) -

Three of Canada's largest banks, driven by domestic growth,

have soared in the stock market this year on a spate of

acquisitions, while lenders with global ambitions have sagged on

rising costs in foreign markets.

Shares of Royal Bank of Canada ( RY ), CIBC and

National Bank have outperformed the broader TSX index's

9.8% rise so far in 2024. National Bank was the top

gainer with a 15.2% rise, followed by RBC with about 13.5% and

CIBC with 10.9%.

The TSX banking index has advanced about 7.5%.

Shares of rivals that rely on overseas markets to increase

revenue have fallen, led by Bank of Montreal ( BERZ ) with an

11.3% drop; followed by Toronto-Dominion Bank ( MLWIQXX ), down

about 6%; and Bank of Nova Scotia ( BNS ) with about 1%.

Among the winners, RBC was propelled by its acquisition of

HSBC Canada this year and National Bank rose on its C$5 billion

($3.65 billion) proposal to buy Canadian Western Bank ( CWESF ).

CIBC got a boost from its focus on digital banking and

wealthy clients in Canada, and growing U.S. commercial accounts.

"It's really a question of more risk appetite. The expansion

within Canada, the east-west expansion, is a much lower risk

proposition" than growth south of the border, said Ben Jang, a

portfolio manager at Nicola Wealth, which holds shares in TD,

RBC and CWB.

However, Canada's Big Six banks - four of which are among

North America's 10 largest - already control more than 90% of

the domestic market.

Some sought growth abroad after the government quashed

plans in 1998 to merge RBC and BMO, and TD Bank with CIBC. The

push intensified with

TD's U.S. acquisition

spree in the mid-2000s and BMO's $16 billion purchase of

regional U.S. lender

Bank of the West

in 2022.

Scotiabank expanded even further south, to the Caribbean,

Mexico, Peru and Colombia and other parts of Latin America.

However, the southward drive has encountered roadblocks. TD

has been plagued by U.S. regulatory probes into its anti-money

laundering program, and RBC Capital Markets analysts in July

flagged faster credit deterioration at BMO than its U.S. peers.

Scotiabank last year laid out a plan to focus on the North

American corridor. Its stock fell 3.4% on Monday after it

announced a surprisingly aggressive move to buy a 14.9% stake in

U.S. bank KeyCorp ( KEY ).

For Scotiabank, acquisitions have historically weighed on

returns, National Bank analysts noted.

As markets get more crowded, new growth is more likely to

come from wealth management or capital markets, which are

typically more profitable than consumer banking, investors and

analysts said.

"Banks that focus on Canadian banking supplemented with

wealth and capital markets outperform banks that chase

international banking growth," analyst Nigel D'Souza at Veritas

Investment Research said.

Compared with the Canadian market, U.S. personal and

commercial banking generates a lower return on equity and costs

to retain deposits are high in competitive areas.

Investors betting on U.S. growth are better off owning

shares of U.S. banks such as JP Morgan, Fifth Third

Bancorp ( FITB ) and Regions Financial ( RF ), which have larger

returns on equity than Canadian lenders like BMO or TD with U.S.

subsidiaries, D'Souza noted.

RBC and National Bank trade at 12 and 11 times forward

earnings estimates, respectively, indicating higher growth

expectations over the next 12 months than TD's 9.5 and

Scotiabank's 9.2. BMO and CIBC have a forward price-to-earnings

ratio of around 10 times.

JP Morgan trades at 12 times forward earnings and

Bank of America ( BAC ) at 11 times.

The S&P 500 banks index, which tracks the largest

U.S. banks, has jumped nearly 16% this year.

Canada's Big Six banks ended the second quarter with total

deposits of $5.7 trillion, of which 21.8% came from the U.S.,

according to an analysis by financial data provider Wowa.ca.

When asked to comment, RBC, TD, Scotiabank, CIBC and

National Bank all pointed to financial statements for details on

their foreign exposure. BMO declined to comment.

"We do know that (operating in the U.S.) is costlier. But

for the Canadian banks it's that added incremental revenue

because our (Canada) market is already saturated," said

Maria-Gabriella Khoury, senior director at Fitch ratings.

"Now it's more along the lines of let's see whose strategy

works best."

"They have got to think of something else right now. And I

think shareholders recognize that the growth is just not

there(overseas)," said John Zechner of J. Zechner Associates.

($1 = 1.3693 Canadian dollars)