How Japan’s Weak Yen Becomes a U.S. Problem | Mark Malek

How Japan’s Weak Yen Becomes a U.S. Problem | Mark Malek

Market Insider
Market Insider
391 Video Views·Aug 8, 2026

The U.S. just stepped into the Japanese yen market, turning what can look like a distant foreign-exchange story into a much larger question for American markets. Why did Washington care enough about a move in the yen to get involved?
The connection runs deeper than the exchange rate. For years, conditions in Japan and the U.S. were linked through a channel most households had little reason to notice. Now that channel is under strain, and it runs closer to your mortgage rate than to any trading desk.
Mark Malek, Chief Investment Officer at Siebert Financial and a Wall Street veteran of more than 35 years, joins us to explain why Washington stepped into a foreign currency market and what sits behind a financial connection most Americans rarely have reason to watch.
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04:04 How Near-Zero Rates Fueled Carry Trades
06:20 Currency Risk in the Carry Trade
07:28 Why the Yen Carry Trade Is Shrinking
11:02 Why Japanese Institutions Hedge
14:12 Why Japan Intervened on the Yen
16:38 The U.S.-Japan Yen Intervention
17:55 Margin Calls and Forced Unwinding
20:27 Why Japan's Treasuries Matter to the U.S.
22:33 How Treasury Sales Push Yields Higher
25:05 How Higher Yields Hit the Economy
27:00 The Deficit Behind Rising Treasury Yields
31:23 Why Markets Aren't Crashing
34:13 Strong Earnings Are Supporting Markets
36:40 Is the U.S. Economy Still Healthy?
38:18 Why Consumers Feel More Financial Pressure
40:38 AI and the Changing Labor Market
42:41 Why Long-Term Investing Still Matters
45:53 How AI Is Reshaping Growth Stocks
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𝘛𝘩𝘦 𝘷𝘪𝘦𝘸𝘴 𝘦𝘹𝘱𝘳𝘦𝘴𝘴𝘦𝘥 𝘪𝘯 𝘵𝘩𝘪𝘴 𝘷𝘪𝘥𝘦𝘰 𝘢𝘳𝘦 𝘵𝘩𝘰𝘴𝘦 𝘰𝘧 𝘵𝘩𝘦 𝘨𝘶𝘦𝘴𝘵 𝘢𝘯𝘥 𝘥𝘰 𝘯𝘰𝘵 𝘯𝘦𝘤𝘦𝘴𝘴𝘢𝘳𝘪𝘭𝘺 𝘳𝘦𝘧𝘭𝘦𝘤𝘵 𝘵𝘩𝘦 𝘷𝘪𝘦𝘸𝘴 𝘰𝘧 𝘔𝘢𝘳𝘬𝘦𝘵 𝘐𝘯𝘴𝘪𝘥𝘦𝘳. 𝘛𝘩𝘪𝘴 𝘤𝘰𝘯𝘵𝘦𝘯𝘵 𝘪𝘴 𝘧𝘰𝘳 𝘦𝘥𝘶𝘤𝘢𝘵𝘪𝘰𝘯𝘢𝘭 𝘱𝘶𝘳𝘱𝘰𝘴𝘦𝘴 𝘰𝘯𝘭𝘺 𝘢𝘯𝘥 𝘴𝘩𝘰𝘶𝘭𝘥 𝘯𝘰𝘵 𝘣𝘦 𝘤𝘰𝘯𝘴𝘪𝘥𝘦𝘳𝘦𝘥 𝘧𝘪𝘯𝘢𝘯𝘤𝘪𝘢𝘭, 𝘪𝘯𝘷𝘦𝘴𝘵𝘮𝘦𝘯𝘵, 𝘰𝘳 𝘭𝘦𝘨𝘢𝘭 𝘢𝘥𝘷𝘪𝘤𝘦. 𝘈𝘭𝘸𝘢𝘺𝘴 𝘤𝘰𝘯𝘴𝘶𝘭𝘵 𝘢 𝘲𝘶𝘢𝘭𝘪𝘧𝘪𝘦𝘥 𝘱𝘳𝘰𝘧𝘦𝘴𝘴𝘪𝘰𝘯𝘢𝘭 𝘣𝘦𝘧𝘰𝘳𝘦 𝘮𝘢𝘬𝘪𝘯𝘨 𝘧𝘪𝘯𝘢𝘯𝘤𝘪𝘢𝘭 𝘥𝘦𝘤𝘪𝘴𝘪𝘰𝘯𝘴. 𝘚𝘰𝘮𝘦 𝘭𝘪𝘯𝘬𝘴 𝘪𝘯 𝘵𝘩𝘦 𝘥𝘦𝘴𝘤𝘳𝘪𝘱𝘵𝘪𝘰𝘯 𝘮𝘢𝘺 𝘣𝘦 𝘢𝘧𝘧𝘪𝘭𝘪𝘢𝘵𝘦 𝘭𝘪𝘯𝘬𝘴.