* KOSPI falls, but ends week 2.7% higher

* Korean won weakens against U.S. dollar

* South Korea benchmark bond yield falls

* For the midday report, please click

SEOUL, July 22 (Reuters) - Round-up of South Korean financial markets:

** South Korean shares fell on Friday, dragged down by tech stocks tracking Snapchat owner Snap's plunge, but they posted their biggest weekly gain in nearly six months. The won weakened, while the benchmark bond yield fell.

** The benchmark KOSPI ended down 16.02 points, or 0.66%, at 2,393.14. The index gained 2.67% for the week, its biggest jump since early Feb.

** Snap Inc on Thursday painted a grim picture of the effects of a weakening economy on social media and declined to make a forecast in "incredibly challenging" conditions, sending its shares down 25%.

** Local tech shares tracked Snap's sharp losses, said Shinhan Financial Investment's analyst Choi Yoo-june, who added that there were also investors taking profits from recent gains.

** Meanwhile, a Reuters poll on Friday showed South Korea's economic growth probably slowed a bit in the second quarter as falling exports and soaring import costs hurt private consumption.

** Technology giant Samsung Electronics fell 0.81% and peer SK Hynix dropped 2.44%, while battery maker LG Energy Solution lost 2.18%.

** Automaker Hyundai Motor rose 1.06% on upbeat second-quarter earnings, though its sister Kia Corp lost 1.34%.

** Of the total 927 traded issues on KOSPI, 331 advanced.

** Foreigners were net buyers of shares worth 29.6 billion won ($22.54 million).

** The won was last quoted at 1,313.0 per dollar on the onshore settlement platform, 0.40% lower than its previous close. It gained 1.00% for the week, its biggest jump since early June.

** In money and debt markets, September futures on three-year treasury bonds rose 0.27 point to 104.92 in late afternoon trade.

** The most liquid 3-year Korean treasury bond yield fell by 8.5 basis points to 3.209%, while the benchmark 10-year yield fell by 7.5 basis points to 3.299%. ($1 = 1,313.2600 won) (Reporting by Jihoon Lee; Editing by Rashmi Aich)