Implied Volatility, Skew & ATM Vola
Follow implied volatility as it moves: skew, term structure and ATM Vola across 0DTE, weekly and monthly expirations.
What is implied volatility
Implied volatility is the market's expected volatility priced into options. It does not tell direction, but how much movement traders expect: it is the thermometer of demand for protection and risk.
Analyzing it means looking beyond a single number: skew shows how volatility changes across strikes and how much downside protection costs; the term structure shows how it varies across expirations; ATM Vola isolates at-the-money volatility, the most representative of current sentiment.
Gaudio OTT charts implied volatility skew and term structure in real time on every symbol with options. Alongside it, ATM Vola is a proprietary calculation with automatic snapshots across 0DTE, weekly and monthly expirations, to catch spikes and compressions when they matter.
How to read implied volatility
An option's price embeds an implied volatility the market assigns based on supply and demand. Extracting it across all strikes and expirations yields a volatility surface: slicing it by expiry gives the term structure, slicing it by strike gives the skew.
Skew matters because traders buy more downside protection than speculative upside: this pushes the volatility of out-of-the-money puts above that of calls, creating the classic "smile" or "skew". A steepening skew signals rising demand for downside protection; a flattening skew signals less fear.
ATM Vola is the most liquid and representative point of the surface: tracking it over time reveals whether the market prices more or less risk. Gaudio OTT computes it with a proprietary formula and tracks it separately by expiry type (0DTE, weekly, monthly) with automatic snapshots, so you see spikes and compressions as they form, not at the close.
ATM Vola across 0DTE, weekly and monthly expirations
Implied volatility skew and term structure
How Gaudio OTT helps
Clear skew and term structure
See how volatility changes across strikes and expirations to understand where the market prices risk.
ATM Vola on 0DTE, weekly and monthly
Track at-the-money volatility by expiry type with automatic snapshots through the day.
Spikes and compressions in real time
Catch implied volatility moves as they form, not at the close.
On every symbol with options
Skew, term structure and implied volatility on indices, ETFs and stocks, with no unnecessary noise.
How to use implied volatility in trading
Skew as a fear/greed signal
A widening put/call skew warns the market is paying more for downside protection: useful for trimming risk or prepping long volatility. A compressing skew signals less fear and room for short-vol strategies.
Term structure to pick the expiry
If the term structure is in contango (forward vol higher than near) the market prices calm short-term; in backwardation, it expects imminent movement. Pick strategy legs based on the slope.
ATM Vola for timing
Compressions in 0DTE ATM Vola often precede expansions: use volatility lows as potential long straddle/strangle zones, highs as potential volatility-selling zones.
Compare 0DTE, weekly and monthly
If 0DTE spikes but monthly stays stable, the expected move is session-only; if monthly rises too, it's a regime change. The separate read by expiry avoids hasty conclusions.
What makes Gaudio OTT's implied volatility different
Many tools show only the ATM volatility number of a single option. Gaudio OTT gives the full read — skew, term structure and ATM Vola — separate by expiry type (0DTE, weekly, monthly), with automatic snapshots through the session instead of a single end-of-day value.
This matters most on short-dated expiries, where 0DTE and weeklies drive the flow: volatility moving on one expiry tells a different story than volatility moving on all of them. Seeing them separately, in real time, is the difference between interpreting and guessing.
Implied volatility frequently asked questions
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