The usd jpy sell-off from 161.80 in Thursday’s US session left traders searching for a clear trigger after the pair quickly fell toward 161.35.
The move came in one sharp burst and no confirmed catalyst emerged. As a result, traders split between several views, including technical factors, possible intervention and large market flows.
Earlier in the Asian session, Chief Cabinet Secretary Kihara warned that Tokyo was ready to act against excessive foreign exchange swings at any time. However, that warning came about 16 hours before the US afternoon reversal. Therefore, the timing made a direct link less clear.
USD JPY Sell-Off Sparks Debate
The technical case looked simpler. USD/JPY had already climbed about 120 pips from the day’s low before it hit 161.80. With official rhetoric still hanging over the market, that level may have acted as a cap.
At the same time, the broader dollar weakened. The source said traders unwound a geopolitical risk premium tied to the US-Iran ceasefire deal. Meanwhile, the DXY fell 0.80% on the day to around 97.70, which added pressure on the dollar side of the pair.
Market Still Lacks Clear Answer
Still, the shape of the drop raised more questions. The move looked too large to some traders to be simple profit-taking. Instead, it appeared more like a sizable order hit the market at a set level.
That left several possibilities in play. Traders considered whether Japan’s Ministry of Finance acted quietly, whether a large fund closed a long position, or whether another flow drove the move. However, the market had no firm answer by the end of the session.
The source also referred to Japan Ministry of Finance head Katayama.
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