Struct AtmTracker 

pub struct AtmTracker { /* private fields */ }

Tracks the raw ATM price reactively from the forward price in option greeks.

Does not interact with cache — receives updates via handler callbacks. Closest-strike resolution is delegated to StrikeRange::resolve().

Implementations

impl AtmTracker

pub fn new() -> Self

Creates a new AtmTracker.

pub fn set_forward_precision(&mut self, precision: u8)

Sets the precision used when converting forward prices from f64 to Price.

pub fn atm_price(&self) -> Option<Price>

Returns the current raw ATM price (if available).

pub fn set_initial_price(&mut self, price: Price)

Sets the initial ATM price (e.g. from a forward price fetched via HTTP).

This allows instant bootstrap without waiting for the first WebSocket tick. Subsequent live updates will overwrite this value normally.

pub fn update_from_option_greeks(&mut self, greeks: &OptionGreeks) -> bool

Updates from an option greeks event.

Extracts underlying_price from the greeks — the exchange-provided forward price for this expiry. Returns true if the ATM price was updated.

pub fn try_update_from_option_greeks( &mut self, greeks: &OptionGreeks, ) -> CorrectnessResult<bool>

Updates from an option greeks event with correctness checking.

Errors

Returns an error if the exchange-provided forward price is outside the representable [Price] range.

Trait Implementations

impl Debug for AtmTracker

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for AtmTracker

fn default() -> Self

Returns the “default value” for a type.