---
title: "How often forecasts update and stay valid"
slug: "forecast-update-rhythm-and-validity"
kind: "ACADEMY"
category: "getting-started"
locale: "en"
canonical: "https://app.forecastcity.com/academy/getting-started/forecast-update-rhythm-and-validity"
published: "2026-11-05T01:38:38.956Z"
updated: "2026-11-05T01:38:38.956Z"
description: "Check the 4CastMachine AI analysis schedule from 5m to M, learn why forecasts stay valid until the Pivot breaks, and see what counts as a change."
---

# How often forecasts update and stay valid

Traders often ask two practical questions when they open a chart: how often does **4CastMachine AI** recalculate each timeframe, and is a forecast that was published a few hours ago still valid to trade right now?

This lesson gives you the exact analysis schedule from `5m` to `M`, explains why forecast validity depends on the **Pivot** price rather than the clock, and shows what triggers a new forecast notification on intraday vs. daily timeframes.

**Core rule of forecast validity:** A **4CastMachine AI** forecast never expires because of the clock. It stays valid until price either breaks the Pivot (and enters the Reverse zone on intraday charts), completes its wave into the Profit zone, or is replaced by a newer forecast row.

## How often does 4CastMachine AI analyze each timeframe?

The **4CastMachine AI** engine checks every supported symbol at the natural rhythm of each timeframe's candles:

<table><thead><tr><th>Timeframe</th><th>Analysis cycle</th><th>Checks per 24-hour day</th><th>When a new row is published</th></tr></thead><tbody><tr><td><strong>5m</strong> (Forex)</td><td>Every 5 minutes</td><td><code>288</code> times per day</td><td>Whenever <code>5m</code> direction or pivot structure changes.</td></tr><tr><td><strong>15m</strong></td><td>Every 15 minutes</td><td><code>96</code> times per day</td><td>Whenever <code>15m</code> direction or pivot structure changes.</td></tr><tr><td><strong>30m</strong></td><td>Every 30 minutes</td><td><code>48</code> times per day</td><td>Whenever <code>30m</code> direction or pivot structure changes.</td></tr><tr><td><strong>1h</strong></td><td>Every 1 hour</td><td><code>24</code> times per day</td><td>Whenever <code>1h</code> direction or pivot structure changes.</td></tr><tr><td><strong>4h</strong></td><td>Every 4 hours</td><td><code>6</code> times per day</td><td>Whenever <code>4h</code> direction or pivot structure changes.</td></tr><tr><td><strong>D, W, M</strong></td><td>Every Saturday (<strong>Weekly Forecasts</strong>) + daily structural checks</td><td>Weekly baseline + event-driven updates</td><td>Every Saturday before the market opens, and mid-week if a major market shift changes the daily structure.</td></tr></tbody></table>

## Why does a new analysis cycle not always change the forecast?

Running an analysis every 15 minutes on `15m` does not mean the arrows and zones jump to a new place every 15 minutes. If a forecast jumped on every candle, you could never plan a trade or keep a consistent stop loss.

When the engine analyzes a new candle and sees that the current trend, **Pivot**, and zone boundaries are still intact, it keeps the existing forecast locked in place. A new forecast replaces the old one only when the underlying market structure actually changes.

## What counts as a new forecast on intraday vs. daily charts?

Our notification engine uses different change-detection rules for fast intraday charts versus the daily (`D`) chart:

-   **On intraday timeframes (5m, 15m, 30m, 1h, and 4h):** A forecast counts as new when its direction flips (`Bullish` ↔ `Bearish`) or its **Pivot** price changes. Minor candle-to-candle noise inside the same pivot structure does not spam you with redundant alerts.
    
-   **On the Daily timeframe (D):** Because swing traders manage multi-week setups on the daily chart, a daily forecast counts as new whenever any of its six core elements changes: its direction, its **Pivot**, its green forecast arrows, its take-profit levels, its Buy zone, or its Sell zone.
    

## How do I check if a forecast is still valid right now?

Whether a forecast was published `5 minutes ago` or `8 hours ago`, run this 3-step price check on the chart before entering:

1.  **Has price broken the Pivot?** Check the panel label (for example, `Bullish above 1.12060` on `EURUSD 1h` or `Bullish above 78894.89` on `BTCUSD 1h`). If price is still above the pivot, the bullish structure is intact. If price broke below the pivot into the Reverse zone, the main path is over and the dashed [**alternate path**](<https://app.forecastcity.com/academy/glossary/glossary#pivot-line-main-path-and-alternate-path>) is active.
    
2.  **Where is price relative to the Buy/Sell zone and Profit zone?** If price is inside or pulling back toward the **Buy zone** (or Sell zone) and forms a confirming candle, the entry is fresh. If price has already rallied all the way into the Profit zone and hit `TP4` or `TP5`, the wave has already played out, so do not chase it at the top.
    
3.  **Check the timestamp badge in the 4CastMachine AI panel:** Hover or look at the freshness label beside the timeframe row (such as `Just now` or `2h ago`). If a market is temporarily between setups and shows `Last saved forecast`, treat it as historical context and wait for an active live forecast before opening a new trade.
    

## Where do I go next?

Now that you know how forecasts update and stay valid, open [Lesson 7: Automate forecasts with alerts, AI, and risk rules](<https://app.forecastcity.com/academy/getting-started/automate-forecasts-with-ai-and-risk-rules>) to put the entire workflow on autopilot.