How are High/Low and New high/New low calculated?
High/Low
This is the highest/lowest value of the symbol's price for a certain period of time.
These metrics have 2 types of settings in the screener:

High/Low Interval
Interval - High/Low is the highest/lowest value of the symbol's price in the selected timeframe. You can check this data by opening the Superchats and looking at the bar values:

Let's take a look at how it works on the High 1-month as an example. First of all, we imagine the bars on the chart with the selected 1-month interval. Each candle (bar) represents aggregated data for a month of the price change history, expressed in 5 numbers: the open price of the interval, the close price, the low price for the period, the high price for the period, and the total trading volume. The bar in the selected interval covers a calendar month, e.g., from 01.01 to 31.01, from 01.02 to 28.02, from 01.03 to 31.03, etc. In the screener, the serial data is exactly the same as on the chart (with the same selected interval). As a result, when selecting the High 1-month in the screener, the value is equal to the high price of the monthly bar from the chart. If today is March 4, then the range of the monthly bar is from March 1 to March 4, so the High 1 month is the high price from March 1 to March 4.
High/Low Date range
Date range - the High/Low value of the symbol for the last selected period. For example, the High 1M is the highest value of the daily bar price for the last 30 days. Let's assume that today is March 4, then the screener looks at the high prices of all daily bars over the past 30 days, i.e., from February 2 to March 4, and finds the highest value among them.
New high/New low
It allows you to find symbols that have a high/low price for a certain period of time in the last trading session.
For example, the New High 1M filter will help you find symbols that have updated their monthly highs in the current session (whose symbol price today was at least once higher than all asset prices over the past month).
How it works: The screener compares the high of the last daily bar with the highest high of the month. If the High of the current daily bar is greater than or equal to the high value for 30 days, then the symbol meets the filter condition and is included in the results.

All similar filters in the set work the same way:
New High
New High 1 Month - find the symbols whose high price for the last month occurred in the last trading session;
New High 3 Month - find the symbols whose high price for the last 3 months occurred in the last trading session;
New High 6 Month - find the symbols whose high price for the last 6 months occurred in the last trading session;
New High 52 Month - find the symbols whose high price for the last 52 months occurred in the last trading session;
New High All Time - find the symbols whose price has never been as high as in the last trading session.
New Low
New Low 1 Month - find the symbols whose low price for the last month occurred in the last trading session;
New Low 3 Month - find the symbols whose low price for the last 3 months occurred in the last trading session;
New Low 6 Month - find the symbols whose low price for the last 6 months occurred in the last trading session;
New Low 52 Month - find the symbols whose low price for the last 52 months occurred in the last trading session;
New Low All Time - find the symbols whose price has never been as low as in the last trading session.