Investors Swayed by "Sudden Fluctuations" in the Nikkei Average... The Difference Between Winning and Losing Lies in "Prior-Night Judgment" and "Tomorrow's Nikkei Average Prediction AI"

【Tomorrow's Nikkei Average Prediction AI】An investment decision support app where AI analyzes the probability of rise, probability of fall, and expected price range of Nikkei Average x Bitcoin

The Japanese stock market in 2026 is transforming into a "night-determined market" more than ever before. Rather than daytime catalysts, movements in the previous day's U.S. market, foreign exchange, and even crypto assets increasingly dictate the opening and direction of the next day.

In fact, it is not uncommon for the Nikkei Stock Average to "determine its direction at the open and continue that trend." What becomes crucial in such an environment is the "accuracy of judgment made the night before."

## Winning Investors "Decide the Day Before"
Investors who achieve stable results in short-term trading have one thing in common.

That is,
"They decide their strategy the day before, not on the day of."

- At what level to enter
- Where to take profits
- Where to cut losses

Because they have decided these in advance, they have no hesitation even when the market moves. On the other hand, many investors try to make judgments by looking at the day's price movements, which makes them easily swayed by emotions.

## The Problem is the "Difficulty of Prior-Day Judgment"
However, there is a major hurdle here.
That is the reality that "making accurate judgments the day before is difficult."

- Interpretations of the U.S. market vary
- Exchange rate movements are unstable
- The impact of news is unpredictable

As a result, the following problems occur:
- Wait-and-see approaches leading to missed opportunities
- Entering in the opposite direction
- Delayed judgments leading to expanded losses

## The Perspective Provided by "Tomorrow's Nikkei Average Prediction AI"
"Tomorrow's Nikkei Average Prediction AI" is gaining attention as a means to solve these issues.
This AI presents the following as numerical values regarding the next business day's market, as of the previous night:

- Probability of rise
- Probability of fall
- Expected price range

In other words, you can grasp "how the market is likely to move tomorrow" with data, rather than intuition.

## Why is "Prior-Night" Analysis Important?
The Nikkei Average is strongly influenced by factors such as the following:

- Closing prices of U.S. stocks
- NASDAQ/Semiconductor Index (SOX)
- Foreign exchange (USD/JPY)
- VIX Index
- Risk assets such as Bitcoin

All of these make significant moves during the "nighttime" when the Japanese market is closed.
Therefore, it is often said that "the next day's market is almost entirely determined the night before."

## How the AI Processes "Nighttime Information"
"Tomorrow's Nikkei Average Prediction AI" integrates multi-dimensional information, including this nighttime data, to derive market scenarios.
The scope of analysis is wide-ranging:

- Fundamentals (corporate earnings, etc.)
- Technical indicators (trend, momentum)
- Supply and demand data (margin balance, trends by investor type)
- External indicators (Forex, VIX, SOX)
- Bitcoin market

It comprehensively analyzes these and reconstructs them into "probabilities."
The AI consolidates information that humans understand fragmentarily into a single criterion for judgment.

## Investment Decisions are Determined by "Preparation"
Many investors start thinking after the market has moved.
However, in reality, results change drastically based on these two points:

- Do you have a scenario in advance?
- Are your judgment criteria clear?

By utilizing the AI Nikkei Diagnosis, you can build strategies in advance, such as:
- If the probability of a rise is high, aim for buying on dips
- If the probability of a fall is high, consider selling on rallies

## Breaking Away from "Emotional Trading"
The biggest cause of losing in the market is making judgments based on emotion.

- Jumping in out of panic
- Selling early out of anxiety
- Failing to let profits run

All of these actions stem from "on-the-spot judgments."
On the other hand, if a strategy is decided in advance, there is little room for emotion to creep in.

## The "Leading Signal" Shown by Bitcoin
One of the features of the AI Nikkei Diagnosis is that it incorporates the Bitcoin market into its analysis.
In recent years, Bitcoin has increasingly functioned as a leading indicator for risk assets.

- Inflows and outflows of funds
- Changes in risk appetite
- Investor sentiment

Because it reflects these promptly, it provides hints for anticipating the movements of the Nikkei Average.

## Investing Differences are Made "The Night Before"
Ultimately, where does the difference in investing arise?
It is "how well you are prepared the day before."
Instead of reacting to the day's price movements, having a scenario at the prior day's stage.
"Tomorrow's Nikkei Average Prediction AI" functions as a tool for that purpose.

## Towards a New Investment Style
Investing from now on is transitioning from:

- An era of judging by intuition
to
- An era of preparing with data

"Tomorrow's Nikkei Average Prediction AI" can be said to be a symbol of that change.

What is important in an uncertain market is not guessing the future.
How rationally can you prepare for the future?
One of the answers to that is probability analysis by AI.

➡【Tomorrow's Nikkei Average Prediction AI】An investment decision support app where AI analyzes the probability of rise, probability of fall, and expected price range of Nikkei Average x Bitcoin
https://www.phoenixconnect.jp/ai-nikkei-shindan

*This article is intended for informational purposes and does not recommend any specific investment action. Please make final investment decisions at your own risk.

## Author Profile
Yasuyuki Takiuchi
Representative, Phoenix Connect Inc. / AI Trading Strategist

He has a career spanning engineering, strategy, and data science across aviation, heavy industry, foreign consulting, tech companies, and AI research. He started his career as an aircraft engineer at Japan Airlines (JAL) and later experienced working in New York for Kawasaki Heavy Industries (KHI). Through practical business in a global environment, he cultivated a foundation in structural thinking and quantitative analysis.

Afterward, he engaged in business improvement and strategy design at a foreign consulting firm, establishing a logical approach to complex business challenges. Furthermore, he accumulated practical experience in AI machine learning, data analysis, and programming at the U.S. NASDAQ-listed company Meta (formerly Facebook), deepening his analytical skills integrating technology and data.

In the investment world, he began trading in 2004. Initially, he experienced a cumulative loss of over 60 million yen due to discretionary judgments. Prompted by this experience, he concluded that "investing dependent on emotion cannot yield reproducibility," and embarked on research into probabilistic market analysis using AI, integrating fundamental, supply-demand, and technical analyses.

As a result, he developed an AI model that integrates multi-dimensional data from the Tokyo Stock Exchange and the Bitcoin market, presenting the next business day's probability of rise, probability of fall, and expected price range as "Tomorrow's Nikkei Average Prediction AI." Currently, he operates and researches a "reproducible investment decision support model" where the AI continuously learns and evolves.

Under the philosophy of "reading the market through structure, not emotion," he works on disseminating information and supporting investments, aiming to establish "reproducible investment strategies" that even individual investors can practice.

## Phoenix Connect Inc.
An independent asset-building consulting firm supporting the reproducibility of investment decisions through AI x Strategic Analysis.
With an overseas base in Kuala Lumpur (Malaysia), it provides analysis and services based on global market data.
https://www.phoenixconnect.jp/