Up Day (UPDAY)

QuantNexus indicator page for positive session movement.

Route: /quantnexus/indicators/upday/

What It Does

UPDAY measures upward price movement over the selected lookback window.

Formula

Up Day = max(close - previous close, 0)

Parameters

• period - default 14

C++23 API

#include <nonabt/indicators/upday.hpp>
auto upDay = std::make_unique<nonabt::UPDAY>(data().close(), 14);

Common Usage

• Use it to isolate positive movement in a trend study.
• Pair it with down-move logic for directional comparisons.
• Helpful as an input to momentum or breadth calculations.