BlackBull Research | Substack

The Polymarket effect: When sentiment outruns the spreadsheet

A headline that seems important on Monday morning can feel irrelevant by Monday afternoon.

Dec 8, 2025 • Mark O'Donnell

Billions Without the Thrillions

I’ve got a bone to pick: this must be the least fun bull market in history. Markets are ripping and yet the whole thing feels strangely joyless. There’s…

Nov 17, 2025 • BlackBull Research

REE: The World’s Grubby Green Secret

When I was younger, we used to refer to ‘rare’ as something seldom found.

Nov 3, 2025 • BlackBull Research

When Trust Turns to Metal

For decades, the gold market has moved under quiet constraint. Historically, rallies would pull back before they became significant. A kind of invisible…

Oct 29, 2025 • BlackBull Research

The Circle of L(AI)f

In 2025, AI-linked firms have been responsible for roughly 80% of total gains in US equities. That level of concentration hasn’t been seen since the…

Oct 14, 2025 • BlackBull Research, Marcel, and thenuk

BlackBull Research

About Archive Recommendations Sitemap

#nojs-banner { position: fixed; bottom: 0; left: 0; padding: 16px 16px 16px 32px; width: 100%; box-sizing: border-box; background: red; color: white; font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol"; font-size: 13px; line-height: 13px; } #nojs-banner a { color: inherit; text-decoration: underline; } This site requires JavaScript to run correctly. Please turn on JavaScript or unblock scripts