Sebastian Furn

I write about Bitcoin treasuries — the companies, the financing instruments, and the mechanisms that make them work or break.

I run Halvex, which tracks 185 BTC treasuries and the convertibles, preferreds, and credit facilities they issue. This site is where I publish guides and company breakdowns at length.

Guides →

Mechanism-first walkthroughs of the instruments BTC treasuries use — convertibles, preferreds, credit facilities.

Companies →

Issuer-by-issuer breakdowns: what each company is actually doing, and what I think of it.