Market Overview: Sei/Yen 24-Hour Technical Summary (2025-12-23)

Summary
• Price fell from 18.01 to 17.27 amid multiple bearish patterns and high-volume breakdowns.
• A strong oversold RSI signal emerged near 17.2, potentially hinting at short-term reversal.
• Bollinger Band contraction followed by expansion suggests increased volatility ahead.
• Volume surged during the key 5.15–5.30 AM ET bearish leg and again during the consolidation phase.
• 17.67 and 17.34 appear as key short-term resistance and support levels respectively.

24-Hour Price and Volume Performance

The Sei/Yen pair (SEIJPY) opened at 18.01 on 2025-12-22 at 12:00 ET and closed at 17.27 at 12:00 ET on 2025-12-23, with a high of 18.01 and a low of 17.15. Total 24-hour volume was 543,895.0 units, with an estimated turnover of 9,310,293.5 (assuming 1 SEI = 1 unit). The price declined for most of the period, punctuated by sharp sell-offs and consolidation phases.

Structure and Momentum

The 5-minute chart displayed a series of bearish candlestick formations, including engulfing patterns, long-lowered candles, and a key breakdown below the 17.67 level with high volume. A 20-period moving average on the 5-minute chart acted as a dynamic resistance during early hours. The 50-period MA confirmed a downtrend. The daily MA 200 may now be in focus as a critical level ahead.

MACD turned bearish with a negative divergence during the afternoon, reinforcing bearish momentum.

RSI reached oversold territory near 17.2, suggesting a possible short-term bounce, but a bullish reversal is not confirmed unless price closes above 17.28.

Volatility and Volume Dynamics

Bollinger Bands showed a tight contraction near 17.33–17.34, followed by expansion during the sharp 17.34 to 17.15 move. This suggests rising volatility and potentially a shift in short-term sentiment.

Volume spiked sharply at 5.15–5.30 AM ET, coinciding with the breakdown to 17.2, and again during the consolidation near 17.20–17.28. Notional turnover aligned with these volume spikes, indicating genuine selling pressure rather than wash trading. A divergence between price and volume is not present at this stage.

Fibonacci and Key Levels

Fibonacci retracements on the key 17.15–17.34 swing show the 61.8% level at approximately 17.26, which aligns with RSI oversold levels. On the daily chart, the 50% retracement of the 17.15–18.01 move is around 17.58, a potential target for near-term bounces.

Outlook and Risk Consideration

The market appears to be in a bearish consolidation phase following a sharp decline. A retest of the 17.2 level could trigger a bounce, but a break below 17.15 would confirm a new short-term trend. Investors should monitor the 17.34 support and 17.67 resistance for signs of reversal or continuation. Position sizing should account for elevated volatility and potential gap risks in the next 24 hours.