Factors Supporting the Bullish Bias
1. Monetary Policy Divergence (Strong):
• The Bank of England (BoE) maintains a relatively hawkish stance with a 4.75% interest rate, while the Bank of Japan (BoJ) continues its ultra-dovish monetary policy.
• The significant yield differential between GBP and JPY creates strong support for GBP/JPY, especially as global investors seek higher returns.
2. Economic Growth Advantage (Moderate):
• The UK economy is showing resilience with stable GDP growth, strong consumer spending, and a robust labor market.
• Japan’s economy remains weak, with GDP forecasts downgraded to ~1.0% for FY2025, largely due to rising import costs and stagnant domestic demand.
3. Inflationary Pressure in the UK (Strong):
• Persistent inflation in the UK forces the BoE to maintain restrictive monetary policies, which supports GBP strength.
• In contrast, Japan’s inflation is subdued, justifying BoJ’s accommodative stance and limiting JPY strength.
4. Political Stability in the UK (Moderate):
• Post-Brexit stabilization enhances the pound’s appeal compared to Japan’s economic policy struggles, but the impact is not overwhelmingly strong.
5. Risk-On Sentiment (Variable):
• A bullish GBP/JPY bias is often tied to global risk-on sentiment, where investors prefer higher-yielding currencies like GBP. However, this factor can shift quickly with geopolitical or macroeconomic developments.

Factors That Could Weaken the Bullish Bias
1. Risk-Off Sentiment (Weakens Bias):
• In periods of heightened geopolitical tension or global economic uncertainty, JPY strengthens as a safe-haven currency. If such conditions arise, they could temporarily cap GBP/JPY gains.
2. Market Overextension (Limits Momentum):
• GBP/JPY has already experienced a strong rally in recent months. Markets could see profit-taking or technical corrections, which may slow further bullish momentum.
3. Upcoming Data Risks (Neutral to Weakens Bias):
• UK GDP data (January 5, 2025): Any significant downside surprise could weaken GBP temporarily.
• Japan inflation (January 6, 2025): A higher-than-expected inflation reading could fuel speculation of BoJ tightening, which would strengthen JPY.
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