FX and FX option implied volatility remain becalmed on Tuesday, with little sign of the U.S.-Iran conflict or oil's recent gyrations filtering through into pricing. Implied vol across G10 FX sits at, or close to, long-term lows, and today's session brought fresh confirmation that the market sees little reason to pay up for protection despite the geopolitical backdrop.

EUR/USD remains the poster child for the trend. A fresh batch of large, soon-to-expire strikes clustered in the low 1.1400s is again containing price action, echoing Monday's pattern, and keeping implied vol pinned near its lows. But beneath the surface calm, risk reversals continue to show a EUR put-over-call premium — the market still pricing greater concern about downside than upside, with any slide toward the recent and 1-year low of 1.1325 seen as the trigger most likely to revive implied volatility and option premium.

That dynamic — vol grinding lower even as skew hints at latent nerves — fits a broader story playing out across FX options. Implied volatility is the options market's forward-looking proxy for realised volatility, normally priced with a modest risk premium on top, like insurance. Right now, even though implied vol is historically cheap in absolute terms, it still looks rich relative to what's actually materialising: 1-month EUR/USD daily realised volatility has fallen to just 4.2, below the current implied low of 4.9 and even below the post-2020 low of 4.5 seen in December, while USD/JPY shows a similar gap, with 1-month implied at 5.95 against realised of just 4.7 - despite the lingering threat of official intervention. That spread favours option sellers for now, but leaves little room for error — a modest pickup in realised vol could quickly erase the premium collected and turn short-vol carry trades unprofitable.

USD/CNH is telling the same story in Asia. Implied volatility there is at multi-year lows, signalling traders expect calm conditions to continue for the yuan, and making volatility protection historically cheap to buy.

Implied volatility is running low not because risks have disappeared, but because the market is still hoping for a U.S.-Iran resolution and because realised volatility has simply failed to show up. Oil's advance, the ongoing Strait of Hormuz disruption and the broader Iran conflict remain latent threats that could still force a repricing, but for now, the path of least resistance for implied volatility — and the broader price of volatility protection — remains lower.

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