PHFUN Volatility Explained — Why Two 96% Games Differ
Volatility (also called variance): The way a game spreads out its returns, as many small wins or a few large ones.
- Term
- Volatility
- Short for
- also called variance
- Set by
- The studio that made the game, through its paytable and reel maths
- Where you meet it
- Usually shown as a label and not a number, in game spec tables
- Not the same as
- In the everyday sense of risk it does not apply, and it says nothing about fairness either. Neither is a high-volatility game rigged nor a low-volatility one safe, as both return the same share over time. Hit frequency is a related idea but a different one: it counts how often something is returned, while volatility describes how much.
Most confusion around Volatility comes from its loose usage, since the term itself has a precise meaning.
Volatility (also called variance) — The way a game spreads out its returns, as many small wins or a few large ones.
What Volatility actually means
| Field | Value |
|---|---|
| Term | Volatility |
| Written out | also called variance |
| In one line | The way a game spreads out its returns, as many small wins or a few large ones. |
| Fixed by | The studio that made the game, through its paytable and reel maths |
| Where you meet it | Usually shown as a label and not a number, in game spec tables |
The shape of the outcomes is what volatility describes, and not the sum of them. Identical RTP does not mean identical feel: a low-volatility slot hands out small wins often, whereas a high-volatility slot pays out rarely and in large amounts. Either way, the return over the long run may come out the same. When it comes to matching a game to a bankroll this property is the most useful, and comparisons most often leave it out.
The common misreading
‘Pays more’ is how high volatility often gets read. Rather than paying more, it pays out less frequently in bigger chunks, so the losing stretches between payments run longer. Having a 10,000x ceiling does not make a high-volatility game generous; it has just shifted its return into an outcome most players will never reach.
In the everyday sense of risk it does not apply, and it says nothing about fairness either. Neither is a high-volatility game rigged nor a low-volatility one safe, as both return the same share over time. Hit frequency is a related idea but a different one: it counts how often something is returned, while volatility describes how much.
Using it in practice
Getting through the dry spells that a high-volatility game’s maths guarantees takes a bankroll deep enough to last. A high-volatility game is a poor fit for a session budget that cannot take eighty losing spins without finishing, whatever ceiling is advertised. Which the same pages tend to mention in the same breath: what rtp explained means, and it is easier to hold onto alongside that.
Volatility is among the terms that recur across this site’s game pages, and if the studio publishes no figure behind such a term, the page states that in place of borrowing a number from a comparison site. For that reason, blanks appear in several of the spec tables on this page.
A worked example
Consider two games both returning 96%.
Something might come back on about one spin in three with the low-volatility game, usually less than the stake. After eighty spins with no return whatsoever, the high-volatility game might then pay two hundred times the stake. Over a million spins the two converge. Across an evening of three hundred spins, the experience and the bankroll needed differ entirely between them.
Checking Volatility at PHFUN
- Open a game at PHFUN and find its info or help screen.
- Read Volatility there through the definition given earlier on this page.
- Compare it with the same entry on another title before you pick one to play at PHFUN.
- Write your stake and your stop point down before the first round at PHFUN.
Related terms defined here
FAQ
What is the best way to put Volatility to use when picking a game?
Getting through the dry spells that a high-volatility game's maths guarantees takes a bankroll deep enough to last. A high-volatility game is a poor fit for a session budget that cannot take eighty losing spins without finishing, whatever ceiling is advertised.
Is Volatility something a casino can change?
Not on this site's evidence. The studio owns any value behind volatility that the game's own mathematics sets, not the operator, and if the studio publishes none, there is nothing outside that could confirm it.
What do people get wrong about Volatility?
'Pays more' is how high volatility often gets read. Rather than paying more, it pays out less frequently in bigger chunks, so the losing stretches between payments run longer. Having a 10,000x ceiling does not make a high-volatility game generous; it has just shifted its return into an outcome most players will never reach.