Catch 100-Point Moves Like This Using Gann’s Secret Time Formula
- GannAstroTrader
- May 9
- 3 min read
Are You Struggling to Find the Perfect Entry in Intraday Trading?
Do you often find yourself chasing price, reacting too late, or getting trapped in fake breakouts? What if there was a way to forecast exactly when the market is likely to reverse — not just based on patterns or indicators, but with a time-tested formula that blends price, time, and precision?
That’s where Gann’s methodology comes in.
W.D. Gann believed that time is the most important factor in forecasting market movement. His Square of 9 and time-price harmonics allow traders to predict future turning points with a degree of accuracy that most conventional tools simply can’t offer. Today, I’m going to walk you through a real-life intraday trade on the S&P500 using Gann’s time projection method, and show you exactly how we forecasted a 100-point move — days in advance.
The Setup: Identifying the Swing Range
On March 12, 2025, at 11:00 AM, I spotted a clearly defined swing forming on the S&P chart. This wasn’t just any fluctuation. It was a meaningful, impulsive move that formed near a previous reaction zone — a strong hint that institutional players were involved.
The range high was marked at 5666.2 and the range low at 5542.5, giving us a total price range of 123.7 points. I used the range tool on my charting platform to get this measurement — but you can also calculate it manually (5666.2 - 5542.5 = 123.7). Either way, this number is crucial because it forms the basis of our time forecast.
Gann’s Time Projection: Converting Price into Time
Now here’s where Gann’s brilliance comes into play.
According to his theory, price and time are the same energy, expressed on different scales. So, we scale the price range (123.7) into time by multiplying it by 10, giving us 1237. This number now becomes our time unit. In Gann’s world, when the market moves 123.7 points in price, we expect a significant reaction 1237 units of time later.
Using my custom Intraday Gann Astro Calculator, I input this 1237 value and received a projected time reversal window: March 17, 2025, at 12:26 AM New York time.
That’s a 4-day advance forecast — purely based on time and range.
The Waiting Game: Letting Time Mature
Once this projection was set, the key was patience. According to Gann, the market is allowed to continue its current direction until it completes the time cycle. So we monitored price action as the S&P approached our forecasted window.
Here’s where it gets exciting.
As the market approached March 17, it had already taken out the range low from March 12 — a clear liquidity grab. When price sweeps major lows before a forecasted reversal time, it’s a strong clue that the market may soon flip.
The Confirmation: A Time-Aligned Reversal
At 12:30 PM on March 17, just minutes after the predicted time, price action confirmed the reversal. The S&P began forming higher highs, signaling a bullish transition. This wasn’t just a lucky bounce — the timing matched our Gann projection to the minute.
The price didn’t just reverse. It surged.
First, it took out the short-term high formed just before the drop — a common liquidity target. Then, it marched straight toward the original range high of 5666.2, sweeping through with clean momentum. This was a textbook Gann move: price and time aligning to trigger a high-probability trend shift.
The Result: A 100-Point Intraday Rally
After a short consolidation, the market resumed its bullish momentum and eventually broke above the original range high, completing a near 100-point move from the forecasted reversal. In intraday terms, that’s a massive swing — and it was completely predicted using Gann’s square-out method.
