Thoughts on the Market, by Andy Krieger

August 10, 2026; Market Commentary & Investor Notes

For informational purposes only. Not investment advice. See disclosures on the final page.

Executive Summary

●      On July 30–31, 2026, Japan's Ministry of Finance and the U.S. Treasury conducted their first coordinated yen-buying intervention since June 1998, pushing USD/JPY from a 40-year low of 164.00 down to 155.20.

●      The operation's design — the Treasury sold euros rather than dollars and encouraged Japan to draw dollar liquidity via the Fed's FIMA repo facility rather than sell its Treasury holdings — points to a primary U.S. motive of protecting the Treasury market, not simply supporting an ally.

●      The 1998 precedent offers both a hopeful and a cautionary parallel: it eventually produced a durable trend reversal, but only after two more months of Asian Financial Crisis resolution — and it triggered the collapse of Long-Term Capital Management along with widespread hedge fund losses.

●      Trillions of dollars in yen-funded carry trades remain a latent source of forced-selling risk. A sustained break of USD/JPY below 154, and then 152 and 145, is likely to trigger cascading stop-loss liquidation across global risk assets.

●      This currency stress is unfolding alongside record U.S. equity valuations, record retail margin debt, a bond market unsettled by Fed Chair Warsh's early tenure, and an unresolved Iran/Strait of Hormuz conflict — a convergence of vulnerabilities rather than an isolated event.

●      Ray Dalio's "debt death spiral" framework argues the U.S. faces a stark medium-term choice between higher rates (risking a debt crisis) or continued monetization (currency depreciation) — with 2026–2028 flagged as a particularly risky window.

The August 2026 Intervention: What Happened

On Thursday, July 30, 2026, Japan conducted a solo yen-buying intervention, selling nearly $60 billion to support an ailing currency and driving USD/JPY down from 164.00 to 157.90. The following day, the U.S. Treasury joined Japan's Ministry of Finance in a coordinated operation that pushed the pair from 160.80 down to 155.20.