Yen Carry Unwinds Roil Risk Assets

An abrupt yen surge catalyzed broad deleveraging as investors unwound carry funded in JPY. Systematic strategies reduced risk, and cross‑asset correlations spiked, dragging equities, EM FX, and high‑yielders lower. Intraday liquidity thinned as market makers widened spreads and margin calls cascaded, reinforcing the adverse feedback loop.

Drivers included shifting BoJ expectations, global risk aversion, and positioning that had grown stretched after a long period of low FX volatility. Options markets reflected the stress with a jump in risk reversals in favor of JPY calls, while cross‑currency basis tightened as funding in dollars and euros was hoarded. Hedged equity returns for Japanese investors improved as the yen strengthened.

We curtailed high‑beta carry baskets, reduced pro‑cyclical leverage, and increased convexity through USDJPY put spreads and tail hedges. We also rebalanced toward defensive FX exposures, favoring CHF and select North Asian currencies with resilient external balances. Duration provided partial ballast as growth concerns rose with the de‑risking impulse.

For clients, we raised cash buffers and extended collateral ladders, prioritizing the capacity to meet margin while keeping strategic positions intact. We set staggered add points based on positioning metrics and option market skew, aiming to re‑engage once volatility risk premia normalized and policy signaling from Tokyo stabilized.