* KOSPI falls, foreigners net sellers

* Korean won strengthens against dollar

* South Korea benchmark bond yield falls

SEOUL, Feb 15 (Reuters) - Round-up of South Korean financial markets:

** South Korean shares inched lower on Thursday, giving up their early gains as automakers fell after a recent rally.

** The benchmark KOSPI fell 3.28 points, or 0.13%, to 2,617.14 by 0156 GMT, erasing its early gain of as much as 0.89%.

** Hyundai Motor and sister automaker Kia Corp shed 2.44% and 2.81%, respectively. They were among the biggest gainers in a recent rally fuelled by optimism around the government's plan to boost undervalued stocks.

** Wall Street's main stock indexes rose on Wednesday, reversing their falls from the previous day when U.S. inflation data came in stronger than market expectations.

** U.S. Treasury Secretary Janet Yellen said recent consumer price inflation data was "a tad higher" than expectations, but Americans should focus on longer-term declines in inflation trends and a strong economy and rising wages.

** South Korea has prepared a financial support programme of $57 billion for companies increasing investment in key sectors as well as small businesses struggling with the impact of high interest rates.

** Kakao jumped 10.02%, after the instant messenger service provider reported a rise in fourth-quarter operating profit and beat market expectations.

** Of the total 932 traded issues, 353 shares advanced, while 521 declined.

** Foreigners were net sellers of shares worth 70.4 billion won ($52.78 million) on the main board, after nine consecutive sessions of buying.

** The won was quoted at 1,333.8 per dollar on the onshore settlement platform, 0.12% stronger than its previous close at 1,335.4.

** In money and debt markets, March futures on three-year treasury bonds rose 0.11 point to 104.54.

** The most liquid three-year Korean treasury bond yield fell by 5.3 basis points to 3.376%, while the benchmark 10-year yield fell by 4.9 basis points to 3.457%. ($1 = 1,333.7200 won) (Reporting by Jihoon Lee; Editing by Subhranshu Sahu)