Finance Twitter Grew Up and Got a Paywall

Newsletters have quietly become the place where serious market commentary happens.

After the GameStop $GME ( ▼ 2.84% ) moment pushed retail traders across Discord and Stocktwits, a more analytical crowd has settled on Substack, where names like Michael Burry and Ray Dalio have launched newsletters alongside independent research outfits with genuine market-moving reach.

The platform sits somewhere between a Bloomberg substitute and a curated idea feed, and it has drawn enough credibility that one research firm, Citrini, seemed to singlehandedly spook markets last month with a viral AI thought experiment.

Here are three of the similarly viral threads circulating this week.

Former sell-side analyst Rupak Ghose pushed back on the idea that AI will dismantle Bloomberg, arguing that decades of institutional trust on Wall Street are not easily replicated by a startup with a demo.

Stanford economist Neale Mahoney and three colleagues published research showing that the Iran War's gasoline price spike has likely wiped out the larger tax refunds the Trump administration touted: pump prices have risen $0.81 per gallon since US military operations began, costing the typical family an extra $68 this month, according to the study. Raymond James institutional equity strategist Tavis McCourt made a similar argument about oil shocks eroding consumer savings.

The third thread, from GSR content head Frank Chaparro, examined what around-the-clock trading does to crypto volatility and looked at circuit-breaker-style mechanisms that let markets stay open while capping how far prices can drift from underlying benchmarks.

None of this is investment advice from The Street Sheet, and Substack posts aren't research reports.

But as more credible voices move to the newsletter format, the line between institutional commentary and independent publishing keeps getting blurrier.