CRTLAB Answers · measured, not opinion
How often is the previous week's high or low taken?
Answered with real trades on 13 markets of CRTLAB's own price history, 2017–2026. The rules were fixed before any result was seen, and every one of them is on this page.
The answer
87.6% of weeks took last week's high or low, across 4,005 weeks since 2017: the high 52.5%, the low 44.8%, both 9.8%. When it was taken, it was most often on Monday — 51.7% of the weeks that took the high.
The short answer
The week opened inside last week's range 93.8% of the time.
Which day it was taken
Of the weeks that took last week's high (or low), the day it first happened.
| Day | Previous week high | Previous week low |
|---|---|---|
| Monday | 51.7% | 47.4% |
| Tuesday | 17.7% | 20.2% |
| Wednesday | 14.1% | 13.5% |
| Thursday | 9.0% | 11.0% |
| Friday | 7.4% | 7.9% |
Every market
| Market | Weeks | High taken | Low taken | Either | Both |
|---|---|---|---|---|---|
| Nasdaq 100 | 331 | 61.6% | 40.2% | 91.8% | 10.0% |
| S&P 500 | 331 | 61.6% | 40.5% | 91.5% | 10.6% |
| Dow Jones (US30) | 331 | 57.4% | 42.6% | 88.2% | 11.8% |
| DAX (GER40) | 70 | 48.6% | 52.9% | 88.6% | 12.9% |
| Gold (XAU/USD) | 310 | 51.0% | 41.3% | 84.5% | 7.7% |
| Silver (XAG/USD) | 312 | 50.0% | 43.3% | 86.5% | 6.7% |
| Crude oil (WTI) | 334 | 52.4% | 47.6% | 89.5% | 10.5% |
| EUR/USD | 386 | 47.4% | 50.5% | 89.1% | 8.8% |
| GBP/USD | 386 | 43.8% | 52.1% | 87.0% | 8.8% |
| USD/JPY | 386 | 57.8% | 40.2% | 87.3% | 10.6% |
| AUD/USD | 387 | 46.5% | 49.4% | 85.3% | 10.6% |
| Bitcoin | 221 | 53.4% | 41.6% | 86.4% | 8.6% |
| Ethereum | 220 | 50.0% | 42.3% | 80.5% | 11.8% |
Test it yourself
NAS100 on the 1-hour chart with last week's high and low drawn. Replay from Monday and call which side goes first. The chart opens in your browser with nothing to install — 10,000 candles free, no card. Replay a week against last week's levels.
How we measured it
CRTLAB's own 5-minute price history, 3 January 2017 to 19 October 2026, on 13 markets: Nasdaq 100, S&P 500, Dow Jones (US30), DAX (GER40), Gold (XAU/USD), Silver (XAG/USD), Crude oil (WTI), EUR/USD, GBP/USD, USD/JPY, AUD/USD, Bitcoin, Ethereum (DAX (GER40) from 2025, Bitcoin from 2022, Ethereum from 2022). A trading day runs 18:00 to 17:00 New York and carries the date it ends on; Monday to Friday only, and a day counts only if it is complete (half-holidays are left out).
Full five-day weeks that follow a full week. Taken = this week trades beyond last week's high (or low) at any time from Sunday 18:00 to Friday 17:00 New York. The day is the trading day it first happened.
Every rule was fixed before any result was seen.
Frequently asked questions
How often is the previous week's high or low taken?
87.6% of weeks took last week's high or low, across 4,005 weeks since 2017: the high 52.5%, the low 44.8%, both 9.8%. When it was taken, it was most often on Monday — 51.7% of the weeks that took the high.
Is the previous week's high taken more than the low?
The high was taken in 52.5% of weeks and the low in 44.8%.
The average says what usually happens. Replay tells you if your version beats it.
Replay real market history candle by candle with the future hidden, take the setup by your own rules, and every trade is scored for you — on 38 markets and every timeframe.
Replay a week against last week's levels