Japan’s historic joint intervention with the US is shifting market focus to whether the yen can strengthen beyond 155 per dollar, a threshold strategists view as a key test for the rally’s staying power. The level carries significance far beyond standard technicals. Japan’s April and May interventions briefly dragged dollar-yen toward 155 before it resumed climbing, reinforcing views that official action merely buys time. Now, investors are weighing whether a clean break below it signals a structural shift. Steve Englander, Global Head: G10 FX Research at Standard Chartered, discusses the move to intervene and what it means for global currencies. -------- More on Bloomberg Television and Markets Like this video? Subscribe and turn on notifications so you don't miss any videos from Bloomberg Markets & Finance: https://tinyurl.com/ysu5b8a9 Visit http://www.bloomberg.com for business news & analysis, up-to-the-minute market data, features, profiles and more. Connect with Bloomberg Television on: X: https://twitter.com/BloombergTV Facebook: https://www.facebook.com/BloombergTelevision Instagram: https://www.instagram.com/bloombergtv/ Connect with Bloomberg Business on: X: https://twitter.com/business Facebook: https://www.facebook.com/bloombergbusiness Instagram: https://www.instagram.com/bloombergbusiness/ TikTok: https://www.tiktok.com/@bloombergbusiness?lang=en Reddit: https://www.reddit.com/r/bloomberg/ LinkedIn: https://www.linkedin.com/company/bloomberg-news/ More from Bloomberg: Bloomberg Radio: https://twitter.com/BloombergRadio Bloomberg Surveillance: https://twitter.com/bsurveillance Bloomberg Politics: https://twitter.com/bpolitics Bloomberg Originals: https://twitter.com/bbgoriginals Watch more on YouTube: Bloomberg Technology: https://www.youtube.com/@BloombergTechnology Bloomberg Originals: https://www.youtube.com/@business Bloomberg Quicktake: https://www.youtube.com/@BloombergQuicktake Bloomberg Espanol: https://www.youtube.com/@bloomberg_espanol Bloomberg Podcasts: https://www.youtube.com/@BloombergPodcasts