Twitter/X

On 2026-06-22 @xmayeth posted a free 51-minute lecture from a senior quant…

Brief

A senior quant architect released a free 51-minute lecture (shared by @xmayeth on 2026-06-22) that teaches using a hidden Markov model to identify bull/bear/neutral regimes and rotate strategies smoothly. It includes Python code, applies the framework to weekly/monthly BTC Polymarket markets, and flags four failure modes—claiming 70% of Polymarket traders are in negative PnL.

Why it matters

On 2026-06-22 @xmayeth posted a free 51-minute lecture from a senior quant architect that typically stays inside hedge funds and family offices.

Key details

  • The lecture teaches using a hidden Markov model to detect bull/bear/neutral regimes and smoothly rotate strategies; it includes a Python implementation and applies regime rotation to weekly/monthly BTC Polymarket markets.
  • The author highlights four failure modes of the system (the lecture calls this the most valuable section) and claims 70% of Polymarket traders sit on negative PnL.
Source evidence

A senior quant architect just dropped a 51-minute lecture that usually never leaves hedge funds and family offices.

It's free.
Save it while you still can.

Quick version of what's in it:

Most traders build one strategy and run it forever, like the market always looks the same. Quants don't. They first figure out what regime the market is in - bull, bear, or neutral - and run a different strategy for each one.

The regime itself gets worked out by a hidden Markov model. It picks up the market's mood shifting before the crowd does, and switches over smoothly, no sudden jerks.

So what does this have to do with Polymarket?

Take the weekly and monthly BTC markets. Price runs up, then rolls over, then sits dead in a range - those are all different regimes. The second the mood flips, your strategy has to flip with it.

Most people keep running the one that already stopped fitting the market - which is exactly why 70% of Polymarket traders sit on negative PnL.

Inside the lecture: the Python, the regime rotation, and the 4 ways the whole system breaks.

That last part is worth more than the rest.

Save it and watch it today

Video