What is the current SPGI expected move?

As of Jun 29, 2026, S&P Global Inc. (SPGI) has an expected move of 10.02% over the next 32 days, implying a one-standard-deviation price range of $367.61 to $449.49 from the current $408.55. The expected move is derived from at-the-money straddle pricing and represents the market consensus for a ±1σ price move.

What does the SPGI 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 SPGI 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.

S&P Global Inc. (SPGI) 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.

S&P Global Inc. (SPGI) operates in the Financial Services sector, specifically the Financial - Data & Stock Exchanges industry, with a market capitalization near $120.82B, listed on NYSE, employing roughly 44,500 people, carrying a beta of 1.08 to the broader market. S&P Global Inc. Led by Martina L. Cheung, public since 1973-02-21.

Snapshot as of Jun 29, 2026.

Spot Price: $408.55
Expected Move: 10.0%
Implied High: $449.49
Implied Low: $367.61
Front DTE: 32 days

As of Jun 29, 2026, S&P Global Inc. (SPGI) has an expected move of 10.02%, a one-standard-deviation implied price range of roughly $367.61 to $449.49 from the current $408.55. 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.

SPGI Strategy Sizing to the Expected Move

With S&P Global Inc. pricing an expected move of 10.02% from $408.55, 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 SPGI 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 10.02%, anchoring an implied range of approximately $367.61 to $449.49. 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.

SPGI 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. SPGI term-structure is in backwardation (slope -0.013), so near-dated tenors price in disproportionate vol - usually because of a known event in the front-month window. Combined with the 73.9% IV rank, the implied move is meaningfully wider than the typical SPGI trailing range, so even premium-selling structures need wide wings to absorb the elevated regime.

Sizing SPGI 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. SPGI put/call volume ratio currently at 0.50 indicates speculative call flow dominates - look for upside-skewed sentiment. 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 SPGI derived from ATM implied volatility at each listed expiration. Implied high/low bounds are computed as $408.55 × (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
Jul 2, 2026	3	49.4%	4.5%	$426.85	$390.25
Jul 10, 2026	11	34.0%	5.9%	$432.66	$384.44
Jul 17, 2026	18	33.8%	7.5%	$439.22	$377.88
Jul 24, 2026	25	32.8%	8.6%	$443.62	$373.48
Jul 31, 2026	32	35.6%	10.5%	$451.61	$365.49
Aug 7, 2026	39	34.3%	11.2%	$454.36	$362.74
Aug 21, 2026	53	33.6%	12.8%	$460.86	$356.24
Sep 18, 2026	81	32.7%	15.4%	$471.48	$345.62
Oct 16, 2026	109	32.1%	17.5%	$480.22	$336.88
Nov 20, 2026	144	32.9%	20.7%	$492.98	$324.12
Dec 18, 2026	172	32.7%	22.4%	$500.26	$316.84
Jan 15, 2027	200	31.7%	23.5%	$504.42	$312.68
Feb 19, 2027	235	31.9%	25.6%	$513.12	$303.98
Mar 19, 2027	263	31.8%	27.0%	$518.83	$298.27
Jun 17, 2027	353	32.2%	31.7%	$537.92	$279.18
Dec 17, 2027	536	33.0%	40.0%	$571.93	$245.17
Jan 21, 2028	571	32.9%	41.1%	$576.67	$240.43

Frequently asked SPGI expected move questions

What is the current SPGI expected move?: As of Jun 29, 2026, S&P Global Inc. (SPGI) has an expected move of 10.02% over the next 32 days, implying a one-standard-deviation price range of $367.61 to $449.49 from the current $408.55. The expected move is derived from at-the-money straddle pricing and represents the market consensus for a ±1σ price move.
What does the SPGI 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 SPGI 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.