Spark (SPK) climbed as much as 73% in 24 hours after Upbit confirmed a KRW listing. The rally coincided with the project reporting on‑chain staking exceeded 500 million SPK (509,969,466). F2Pool co‑founder Wang Chun said he sold 83.7 million SPK last year for 663 ETH and “regret[s]” it, adding speculative interest. At press time SPK traded near $0.06 with ~24‑hour spot volume approaching $650M and a market cap in the tens of millions. Earlier analytics showed ~136M staked by ~3,400 users.

Upbit’s confirmed KRW listing and reported 73% intraday jump are concrete exchange and price events; on‑chain staking >500M SPK and prior analytics (~136M staked by ~3,400 users) support a locked‑supply/engagement narrative; very high 24‑hour spot volume (~$650M) indicates strong market activity; the co‑founder’s disclosed 83.7M SPK sale (663 ETH) and regret note likely fueled speculative interest.