Yesterday's announcement that China would be abandoning its infamous one-child policy was relieving for young couples planning families, but not everyone has benefited from the relaxed legislation.
Traders, keen to benefit from the predicted effects of the decision, invested heavily in companies producing baby formula, nappies and prams - but makers of contraceptives lost out.
Japanese condom manufacturers Okamoto Industries, whose products are popular in China, dropped 10% in Tokyo.
The Guardian reports China Child Care, which makes hair and skin care products for children, as the biggest winner - with its shares jumping 40% higher on Hong Kong’s stock exchange on Friday.
New Zealand's dollar jumped by almost a percentage point, with the country's dairy industry likely to benefit from a baby boom and an increased demand for milk powder and formula.
Credit Suisse analysts have said the new rules allowing two-child families could result in an additional 3 to 5 million babies born every year from 2017, which already sees an annual birth rate of about 16.5 million.