* KOSPI rises, foreigners net buyers

* Korean won weakens against dollar

* South Korea benchmark bond yield rises

SEOUL, April 26 (Reuters) - Round-up of South Korean financial markets:

** South Korean shares rose on Friday, and were set for their first weekly gain in five, as chip shares advanced following stellar earnings reports from U.S. tech companies including Microsoft Corp. The won weakened, while the benchmark bond yield rose.

** The benchmark KOSPI rose 25.58 points, or 0.97%, to 2,654.20 by 0155 GMT. For the week, the index is up 2.5%.

** Among index heavyweights, chipmaker Samsung Electronics rose 1.18% and peer SK Hynix gained 3.28%, while battery maker LG Energy Solution slid 0.27%.

** Microsoft beat Wall Street estimates for third-quarter revenue and profit on Thursday, driven by gains from adoption of artificial intelligence across its cloud services. Its shares jumped more than 4% in extended trade.

** Hyundai Motor shed 1.60% and sister automaker Kia Corp lost 0.69%, while search engine Naver and instant messenger Kakao were down 0.44% and down 0.32%, respectively.

** Of the total 930 traded issues, 379 shares advanced, while 474 declined.

** Foreigners were net buyers of shares worth 188.1 billion won on the main board on Friday.

** The won was quoted at 1,375.9 per dollar on the onshore settlement platform, 0.07% lower than its previous close at 1,375.0.

** In offshore trading, the won was quoted at 1,374.7 per dollar, down 0.2% on the day, while in non-deliverable forward trading its one-month contract was quoted at 1,371.9.

** The KOSPI has fallen 0.04% so far this year, and lost 2.4% in the previous 30 trading sessions.

** The won has lost 6.4% against the dollar this year.

** In money and debt markets, June futures on three-year treasury bonds fell 0.06 point to 103.89.

** The most liquid three-year Korean treasury bond yield rose by 3.4 basis points to 3.574%, while the benchmark 10-year yield rose by 3.2 basis points to 3.734%. (Reporting by Cynthia Kim; Editing by Subhranshu Sahu)