TD Bank Financial Group (TSX:TD) reported a decline in third-quarter profits Thursday and warned of trouble ahead as difficult economic conditions weakened the performance of some of the bank's U.S.-based operations.

"It's unlikely that this level of earnings can be maintained," admitted TD chief executive Ed Clark in a conference call Thursday.

"But we do have an excellent business that continues to perform well and produce solid returns on capital with very tight risk management."

TD's financial performance was "great" in the quarter, given the ongoing economic weakness around the world, said Clark.

"There probably aren't many people on this call frankly, including me, who thought we'd be having this kind of performance in the midst of a recession," he said.

"At the beginning of 2009, I would have found it hard to believe that by the third quarter I'd be talking about year-over-year increase on our earnings per share, even after issuing shares last year, but it certainly looks like we're going to be there."

The Toronto-based bank reported a profit of $912 million or $1.01 per share for the quarter ended July 31, down from year-earlier profits of $997 million or $1.21 per share.

The bank said adjusted earnings rose 17 per cent to $1.3 billion or $1.47 per share from $1.1 billion or $1.35 per share reported a year ago. The adjusted results beat the estimates of analysts surveyed by Thomson Reuters, who predicted earnings would come in at $1.23 per share.

TD said total quarterly revenue rose to $4.66 billion from $4.32 billion, while provision for credit losses declined to $557 million from $656 million.

TD's Tier 1 capital ratio, a key metric measuring the amount of money held in reserve, stood at 11.2 per cent at quarter's end.

Clark gave credit to governments and central banks around the world for responding "both quickly and appropriately" to the global economic crisis, but said there are concerns about the extent of the recovery.

"We have never been tested by conditions this tough, but we were up to it," he said.

"It seems like we're through the bottom, but there's clearly a debate going on about the strength of the subsequent economic recovery."

Results got a boost from TD's wholesale banking operations, where profits soared nearly 90 per cent to $327 million. Net income also improved five per cent in the Canadian personal and commercial segment, which recorded profit of $677 million.

Earnings in wealth management were dragged down by weak market conditions, while loan losses drove profits in U.S. personal and commercial banking down to $172 million.

Clark said TD didn't anticipate the resilience of the Canadian resale housing market.

"The structure of Canadian housing and mortgage markets provides an enduring strength for the economy and for our business," he said.

The bank also announced Thursday that Clark had advised of his intention to exercise up to 390,000 options for TD common shares, which represents 13 per cent of his outstanding options.

Clark intends to donate approximately 10 per cent of the pre-tax net proceeds to charity, and to sell the remaining acquired shares.

TD shares were up just over $2 in late Thursday trading at $62.62.

The drop in Canadian home prices in September may not be as severe as it seemed, TD Securities said on Wednesday, bolstering the case that the country is not headed for a U.S.-style housing meltdown TD, a unit of Toronto-Dominion Bank, argued in a report that home prices fell 1.3 percent in major Canadian markets in September, not the dramatic 6.2 percent drop that was reported by the Canadian Real Estate Association (CREA) last week.

CREA said the average house price fell to C$315,461 (about $252,000), dragged down by sales declines in Vancouver and Victoria, British Columbia, which offset rebounds in Calgary and Edmonton, Alberta. CREA said the fall came despite year-over-year gains in average home prices in 17 of 25 major Canadian markets.

TD crunched its own numbers and applied a weighting to each major city to fix "compositional shifts", which it said were behind the distorted CREA view. It said the association has acknowledged the problem.

For example, if Vancouver was the only city that reported sales in one month, and the next month Montreal was the only city that reported, then it might seem that prices had fallen in half because Montreal prices are much less expensive than those in Vancouver.

TD fixed the weight of each city to year-earlier sales levels as of September 2007.

"We wanted to get rid of the whole compositional issue. We really just controlled for the allocation. When we did that we ended up with a 1 percent drop instead of a 6 percent drop," said Eric Lascelles, chief economics and rates strategist at TD Securities.

"That's not catastrophically different, but to me that's a number that makes more sense. Yes the housing market is correcting moderately but it does not have the making of a U.S.-style correction."

He said Canadian housing starts may fall below the 200,000 mark, home prices will continue to correct in some inflated cities, but there is no need to brace for big delinquencies or a hard drop in prices.

The TD calculations aren't perfect, Lascelles acknowledged, because they do not eliminate some factors such as type and quality of home in each city.

Canadian housing data has shown signs of softness but nowhere near the slump that hit that United States, stemming from a crisis in the subprime mortgage sector.

TD Canada Trust (TSX:TD) changed its mortgage offerings Wednesday to bring its lending rules in line with regulatory changes set to take affect in October.

The bank said effectively immediately the maximum amortization period for new mortgages will be 35 years and will require a five per cent down payment.

TD said it will continue to process those mortgages with a longer amortization period or a lower down payment that have already been approved.

TD joins Bank of Montreal in changing its lending rules ahead of the Oct. 15 change in regulations

Ottawa moved to tighten the rules for government-guaranteed mortgages this week in a bid to prevent a meltdown like the one in the U.S. subprime mortgage market.

Starting Oct. 15, the Finance Department said it will no longer guarantee 40-year mortgages and will require a minimum down payment of five per cent of the value of a home.

Government-backed insurance is currently available on mortgages where the loan-to-value ratio is up to 100 per cent - in other words the buyer has borrowed all the money to buy a home and then gets insurance coverage on the whole amount.