Sep 18, 2026 · myth check · stocks
The weekend is not special
Some crypto exchanges let you trade stocks like MSTR over the weekend, while the stock market is closed. A popular belief: “when the stock market opens on Monday, it hits the weekend's high or low.”
The data: for MSTR it did, in 95% of 41 weekends. That sounds like a pattern until you compare it with an ordinary night: the overnight high or low got hit the same day 98% of the time.
Same picture for COIN and CRCL: 95% and 92% after a weekend, 100% and 99% after an ordinary night.
The market reaches a nearby high or low almost every day. The weekend is not special.
Does a pattern still look special next to an ordinary day?
Where each number comes from
Receipts
Every number above was read by code from a line of a versioned measurement file. The version and the hash pin the exact text it came from. Data as of Sep 18, 2026 · 04:40 UTC.
| Numbers | Measurement | Line | Version | SHA-256 |
|---|
| 95%, 41 | Base rates (stocks) | line 187 | 952ea80 | 0b6283e3d5e0 |
| 95% | Base rates (stocks) | line 189 | 952ea80 | 0b6283e3d5e0 |
| 98% | Base rates (stocks) | line 188 | 952ea80 | 0b6283e3d5e0 |
| 92% | Base rates (stocks) | line 191 | 952ea80 | 0b6283e3d5e0 |
| 100% | Base rates (stocks) | line 190 | 952ea80 | 0b6283e3d5e0 |
| 99% | Base rates (stocks) | line 192 | 952ea80 | 0b6283e3d5e0 |
Caveats
- A measured frequency describes the history it was measured on. It is not a forecast.
No disclaimer was needed: the note gives no price levels, forecasts, direction, calls to action or trade results.
