Market Memory
What happened today, how unusual it is against every session on record, how often something similar has happened, and what followed those sessions — with sample sizes, ranges and the conditions that made each of them different from today. Historical context, not a forecast. Every figure on this page describes what happened after past moves. None of it says what happens after this one. Historical market behaviour does not predict future results.
Market Memory of the day
10-year Treasury yield fell 0.17 pp on Oct 22, 2026 — the 97th percentile of daily moves since 1962. 399 comparable sessions: median 1-month change -0.01 pp, historical range -1.88 pp to +1.30 pp. See the full context →
Why this exists, when Yahoo Finance and a chat model already do
A quote page tells you the move. A chat model has no today, and its history is a memory of text rather than a series it can count. This tool counts: it holds every daily close as of last night, ranks today's move against all of them, finds the comparable sessions three different ways, and shows the whole distribution of what followed — including how wide it was, and how the conditions then differed from now. Every number is recomputed from the source data at build time, and the build fails if the page disagrees with the data.
What this is not
A forecast. A median outcome after similar days is a description of those days, and the share that ended higher is a frequency from the past. Neither says which side of the median today lands on. The methodology page sets out the definitions, the sources and the biases this cannot remove. The site's financial disclaimer applies.