Daily Briefing — August 20, 2026 | The Treasury Steps In, Yields Fall, Then Iran Sends Them Right Back Up

<p>The Treasury Department&#39;s surprise move to more than double its long-dated debt buybacks sends yields sharply lower and stocks rallying Wednesday, only for the relief to reverse Thursday after President Trump vows a &quot;crushing economic operation&quot; against Iran and sends oil prices higher again. We cover why the 30-year Treasury yield&#39;s climb to a near-20-year high forced the government&#39;s hand, Moderna&#39;s roughly 140% surge on strong trial results, and South Korea&#39;s Kospi jumping nearly 6% in a single session on the same lower-yield tailwind. We also cover bitcoin&#39;s dramatic swing, briefly topping $71,800 before paring gains, as crypto reacted to this week&#39;s bond-market drama even more sharply than equities did, and Procyon&#39;s Massimo Santicchia on the growing tension between strong fundamentals and a genuinely higher cost of capital. This episode is for informational purposes only and does not constitute financial, investment, legal, or tax advice.</p>