Toss and KOMSCO use Optimism OP Stack for payments
Optimism (OP)
Editor:
Eugene Serbin
cryptocurrency.com.tr reports that Toss and KOMSCO have successfully implemented a full local-currency payment cycle using Optimism’s OP Stack. This initiative targets small businesses in South Korea to receive payments faster and reduce transaction fees. The move signals growing acceptance of crypto payments in everyday transactions.
Toss is Korea’s largest fintech super app, while KOMSCO is the government body responsible for minting. The cycle includes funding, spending at merchants, and settling all in one pass. This demonstrates potential efficiency in the payment landscape.
The development represents a significant advancement in adopting crypto technology within traditional financial systems. Source: Optimism’s tweet.
How the market reacted
Whalio's own Binance spot order flow for OP, measured when this story was written up on 21 September 2026. Not the outlet's figures.
OP trades at $0.1251 with a 1-hour buy ratio of 58.8% and a 4-hour ratio of 48.6%. The 24-hour buy ratio sits at 52.1%, indicating a slight shift from the recent hourly surge. Volume delta shows +$100,103 in the last hour but -$114,467 over four hours. Over 24 hours, the delta is +$445,837 with a CVD of +$436,801. Buying pressure appears to be building over the day despite short-term fading. Net buying occurred in 17 of the last 24 hours.
The latest daily buy ratio of 49.0% sits at the 34th percentile of the last 323 days, against a median of 50.1% - ordinary for this coin.
Was that an ordinary day?
The same Binance spot measurements for OP, averaged over the days leading up to the story.
The 7-day average buy ratio is 52.6%, slightly higher than the current 24-hour reading. Volume is 1.29x the average, showing unusual activity compared to the norm. Net buying happened on 6 of the last 7 days. Price rose 32.0% over 8 days with a total volume delta of +$3,241,869. This is an unusual day for the coin, with volume significantly above the weekly average.