Weekly spread reports

What the scanner found, week by week: every fee-clearing spread it listed on Kalshi, Polymarket and Polymarket US, how long each stayed listed, and when they appeared. Straight from the log, nothing picked by hand.

The first weekly report is written on Monday morning. The running results are on the homepage meanwhile.

Spreads are small and short-lived; most are gone within minutes of appearing. Nothing here is advice. ArbTrader is free to start.