** Shares of cryptocurrency and blockchain-related firms rise on Weds as bitcoin BTC= advances to highest since early Feb
** Riskier assets getting a boost after U.S. President Donald Trump extended ceasefire with Iran
** Bitcoin, world's largest cryptocurrency, gains 4.3% to around $79,004; Ether ETH= up 4.3% to about $2,417
** Crypto exchange Coinbase Global COIN.O jumps >7%
** BTC hoarder Strategy MSTR.O leaps >10%
** Retail trading platform Robinhood Markets HOOD.O up 4%. HOOD said on Weds its venture fund invested $75 mln in ChatGPT maker OpenAI
** Crypto miners up: Riot Platforms RIOT.O 6%, Mara Holdings MARA.O 7%, Bit Digital BTBT.O 10%, CleanSpark CLSK.O 9%
** Ether-linked stocks vault: BTCS BTCS.O 9%, Bitmine Immersion Technologies BMNR.A 7% and Sharplink Gaming SBET.O about 4%
** ProShares Bitcoin Strategy ETF BITO.P and iShares Bitcoin Trust ETF IBIT.O both up >5%, while iShares Ethereum Trust ETF ETHA.O also rising >5%
(Lance Tupper is a Reuters market analyst. The views expressed are his own)
((lance.tupper@tr.com ; 1-646-279-6380))