Estée Lauder and Canada Goose Holdings recently cut their annual forecasts as the luxury goods companies grapple with weak demand in high-growth market China.
Estée's shares tumbled about 15% in early trading while Canada Goose's US - and Toronto-listed stock shed 7%.
Luxury companies have also flagged a hit from Beijing's tighter controls of 'daigou' resellers - people who buy items at lower prices abroad and resell them at a discount in the country.
"They are very exposed to the daigou trade and are also big beneficiaries...the Chinese authorities have clearly clamped down on these bigger trades and it might have fundamentally changed the trade from here," said Javier Gonzalez Lastra, luxury-focused portfolio manager at Tema ETFs.
Canada Goose, whose luxury parkas retail for over $1,000, said sales in China slowed in the second quarter from the preceding quarter, while Estée has struggled with a weaker-than-expected rebound in demand from fliers in Asia, mainly in travel destinations such as Korea and China's Hainan province.
"When it comes to China...we are seeing an environment which is still somewhat challenged in terms of the economic impact on the Chinese consumer," said Jonathan Sinclair, chief financial officer of Canada Goose.
Estée signaled that a resetting of inventory in Asia travel retail is expected to extend until the end of the third quarter of its financial year 2024.
The company now expects adjusted profit per share between $2.17 and $2.42 for its full year, compared to a prior forecast of $3.50 to $3.75.
Estée said that disruptions caused by the conflict in the Middle East could have an 8 cents per share impact on profit.
Annual sales are estimated to decrease 2% to an increase of 1%, compared with a rise of between 5% and 7% earlier.
Canada Goose expects 2024 revenue to be between C$1.20 billion ($864.49 million) and C$1.40 billion, compared to C$1.40 billion to C$1.50 billion estimated earlier.
Annual adjusted profit is expected to be between C$0.60 and C$1.40 per share, compared to the prior range of C$1.20 to C$1.48.
Canada Goose also posted a nearly 11% decline in revenue in the United States region, on strained demand for high-end goods while Estee, seen as an affordable luxury, posted an 8% increase in sales in the Americas.