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Here's one way to get a rise out of a stock price. South Korea's highest court on Thursday struck down as unconstitutional a decades-old law banning adultery, triggering a surge in shares of condom makers and morning-after pills.

The 1953 law aimed to protect women in a male-dominated society where divorce was rare, by making marital infidelity punishable with jail. "The law is unconstitutional as it infringes people's right to make their own decisions on sex and secrecy and freedom of their private life, violating the principle banning excessive enforcement," said Seo Ki-seok, a Constitutional Court judge, reading an opinion on behalf of five judges.

Seven members of the nine-judge panel deemed the law to be unconstitutional. After the ruling, shares in Unidus Corp, which makes latex products, including condoms, soared to the 15 percent daily limit gain. Hyundai Pharmaceutical Co Ltd, a maker of morning-after birth control pills and pregnancy tests, ended up 9.7 percent.

SOCIAL

Buffalo Public Schools are debating giving out condoms to their students. Learn more here: http://t.co/lRtSuSNu07 — WIVB News 4 Buffalo (@news4buffalo) February 25, 2015

Documentary film encouraging use of Condoms in India - FilmyTown - http://t.co/ClYizgU1Is via @sharethis — S.K De (@SK_Dey) February 26, 2015

-- Reuters