What is the current XAU expected move?

As of Aug 28, 2026, PHLX Gold/Silver Sector Index (XAU) has an expected move of 12.79% over the next 33 days, implying a one-standard-deviation price range of $361.28 to $467.22 from the current $414.25. The expected move is derived from at-the-money straddle pricing and represents the market consensus for a ±1σ price move.

What does the XAU expected move mean for traders?

Roughly 68% of outcomes should fall within ±1 expected move and 95% within ±2 under lognormal assumptions, though equity returns have empirically fatter tails than log-normal predicts. Strategies sized to the expected move (iron condors at ±1σ, strangles at ±1.5σ) target the typical outcome distribution; strategies that profit from tail moves (long-vol structures, ratio backspreads) target the tails the lognormal model under-prices.

How is XAU expected move calculated?

The expected move displayed here is derived from at-the-money implied volatility scaled to the chosen tenor: expected move % is approximately ATM IV times sqrt(T / 365), where T is days to expiration. An equivalent straddle-based form: the ATM straddle (call + put at the same strike) is roughly sqrt(2/pi) times spot times IV times sqrt(T/365), so the implied one-standard-deviation move is approximately 1.25 times ATM straddle divided by spot. The two formulations agree once the sqrt(2/pi) constant is reconciled.

PHLX Gold/Silver Sector Index (XAU) Expected Move

Expected move estimates the probable price range for a given period based on at-the-money options pricing. It reflects the market consensus for volatility over the selected timeframe.

Snapshot as of Aug 28, 2026.

Spot Price: $414.25
Expected Move: 12.8%
Implied High: $467.22
Implied Low: $361.28
Front DTE: 33 days

As of Aug 28, 2026, PHLX Gold/Silver Sector Index (XAU) has an expected move of 12.79%, a one-standard-deviation implied price range of roughly $361.28 to $467.22 from the current $414.25. Expected move is derived from at-the-money straddle pricing and represents the market's pricing of a ±1σ move. Roughly 68% of outcomes should fall within this range under lognormal assumptions, though empirical markets have fatter tails.

XAU Strategy Sizing to the Expected Move

With PHLX Gold/Silver Sector Index pricing an expected move of 12.79% from $414.25, risk-defined strategies sized to the implied range structurally target the modal outcome distribution. Iron condors with wings at the ±1σ expected move boundaries collect premium against the ~68% probability that spot stays inside the range under lognormal assumptions; strangles set wider at ±1.5σ or ±2σ target the tails but pay smaller per-trade premium. Long-vol structures (long straddles, ratio backspreads) profit when realized move exceeds the implied move, the inverse trade: they bet against the lognormal assumption itself, capitalizing on the empirically fatter equity-return tails.

How to read the XAU implied-range chart

The shaded range above shows the one-standard-deviation implied price band at each listed expiration, derived from ATM implied volatility scaled to days-to-expiration. The front-tenor expected move is 12.79%, anchoring an implied range of approximately $361.28 to $467.22. Under lognormal assumptions, roughly 68% of outcomes fall inside that band; 95% fall inside ±2σ; 99.7% inside ±3σ. The empirical equity-return distribution has fatter tails than lognormal, so true tail-outcome frequency is moderately higher than these closed-form numbers suggest.

XAU expected move and event pricing

Expected move widens with √time: a 5% 30-day move corresponds to roughly a 2.5% 7.5-day move and a 10% 120-day move. XAU term-structure is in contango (slope 0.008), so longer-dated tenors price in proportionally more vol than √time scaling alone would suggest - typically because long-dated cycles include uncertain macro states. With IV rank at 15.3%, the implied move is at the low end of the typical XAU range - cheap optionality for buyers, thin premium for sellers.

Sizing XAU structures to the expected move

Iron condors with wings at ±1σ collect the modal-outcome premium; ±1.5σ widens probability of inside-range to ~87% but cuts collected premium roughly in half. Strangles do the inverse trade - they pay against the same lognormal distribution, profiting when realized exceeds implied. Calendar spreads bet on the slope of the term structure rather than the level. XAU put/call volume ratio currently at 0.67 indicates balanced flow without strong directional skew. The expected move is the inputs the chain is pricing, not a forecast - realized moves above or below are normal under any distribution.

Learn how expected move is reported and how to read the data →

Shaded band shows the ±1σ implied price range (~68% probability under lognormal assumptions) at each expiration; the center line marks current spot. Bands widen with longer DTE since volatility scales with √time.

Per-expiration expected move for XAU derived from ATM implied volatility at each listed expiration. Implied high/low bounds are computed as $414.25 × (1 ± expected move %). One standard-deviation range under lognormal assumptions, roughly 68% of outcomes fall inside.

Expiration	DTE	ATM IV	Expected Move	Implied High	Implied Low
Sep 18, 2026	21	44.6%	10.7%	$458.57	$369.93
Sep 30, 2026	33	44.6%	13.4%	$469.80	$358.70
Oct 16, 2026	49	45.4%	16.6%	$483.16	$345.34
Nov 20, 2026	84	46.2%	22.2%	$506.06	$322.44
Dec 18, 2026	112	46.0%	25.5%	$519.81	$308.69
Dec 31, 2026	125	45.7%	26.7%	$525.04	$303.46
Mar 19, 2027	203	45.6%	34.0%	$555.12	$273.38
Mar 31, 2027	215	45.5%	34.9%	$558.91	$269.59
Jun 30, 2027	306	45.6%	41.8%	$587.21	$241.29

Frequently asked XAU expected move questions

What is the current XAU expected move?: As of Aug 28, 2026, PHLX Gold/Silver Sector Index (XAU) has an expected move of 12.79% over the next 33 days, implying a one-standard-deviation price range of $361.28 to $467.22 from the current $414.25. The expected move is derived from at-the-money straddle pricing and represents the market consensus for a ±1σ price move.
What does the XAU expected move mean for traders?: Roughly 68% of outcomes should fall within ±1 expected move and 95% within ±2 under lognormal assumptions, though equity returns have empirically fatter tails than log-normal predicts. Strategies sized to the expected move (iron condors at ±1σ, strangles at ±1.5σ) target the typical outcome distribution; strategies that profit from tail moves (long-vol structures, ratio backspreads) target the tails the lognormal model under-prices.
How is XAU expected move calculated?: The expected move displayed here is derived from at-the-money implied volatility scaled to the chosen tenor: expected move % is approximately ATM IV times sqrt(T / 365), where T is days to expiration. An equivalent straddle-based form: the ATM straddle (call + put at the same strike) is roughly sqrt(2/pi) times spot times IV times sqrt(T/365), so the implied one-standard-deviation move is approximately 1.25 times ATM straddle divided by spot. The two formulations agree once the sqrt(2/pi) constant is reconciled.