{"slug":"newsletters","boardTitle":"The Newsletter Platform Race","kind":"ath","day":"2026-07-07","dayNum":7,"headline":"Substack hits an all-time high.","subject":{"label":"Substack","sovPct":15.4},"rows":[{"rank":1,"label":"Ghost","sovPct":75.9,"isSubject":false},{"rank":2,"label":"Substack","sovPct":15.4,"isSubject":true},{"rank":3,"label":"Kit","sovPct":5.3,"isSubject":false},{"rank":4,"label":"beehiiv","sovPct":3.5,"isSubject":false}],"detail":{"athPct":15.4,"prevAthPct":14.9,"dayNum":7},"permalink":"https://xterminal.app/mindshare/newsletters/moments/2026-07-07-ath-substack","source":"XTerminal · xterminal.app/mindshare"}