Bitcoin traded near $77,300 on Monday, holding a 22% weekly gain, while last week's standout altcoins steadied after their run, per CoinDesk data. XRP sits at $1.48, up 48% on the week, and Zcash near $838 after a 70% weekly surge, both leveling off rather than extending.The rally that broke bitcoin out past $69,000 last week had real drivers behind it, a U.S. Treasury bond buyback expansion to $4 billion, a White House meeting backing crypto, Trump's support for the CLARITY Act ahead of its September vote, and a Grayscale spot Zcash ETF filing that powered ZEC's run. Capital rotated down the risk curve into higher-beta alts as the move built.Attention now turns to Jackson Hole. Fed Chair Kevin Warsh's debut at the annual symposium is the week's macro focus, and his tone on rates will test whether the easing-conditions backdrop that helped fuel the rally holds. Part of last week's move also came from a $3 billion short squeeze, so whether spot and ETF demand carry prices from here is the question the pause leaves open.