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First-Order Greeks

FreeValueStandardPro

Fetch first-order Greeks history (intraday, sampled by interval).

  • Returns the data for all contracts that share the same provided symbol and expiration.
  • Calculated using the option and underlying midpoint price. If an interval size is specified (highly recommended), the option quote used in the calculation follows the same rules as the quote endpoint.
  • The underlying price represents whatever the last underlying price was at the timestamp field. You can read more about how Theta Data calculates greeks here.
  • Multi-day requests are limited to 1 month of data.
rust
pub fn option_history_greeks_first_order(
    &self,
    symbol: &str,
    expiration: &str,
    date: &str,
) -> OptionHistoryGreeksFirstOrderBuilder<'_>

Optional parameters chain on the builder: .strike(&str), .right(&str), .interval(&str), .start_time(&str), .end_time(&str), .annual_dividend(f64), .rate_type(&str), .rate_value(f64), .version(&str), .strike_range(i32), .start_date(&str), .end_date(&str). Execute with .awaitResult<Vec<GreeksFirstOrderTick>, Error>, or decode chunk-by-chunk with .stream(handler).

Example

rust
let rows = tdx
    .option_history_greeks_first_order("SPY", "20250321", "20250303")
    .strike("570")
    .right("C")
    .interval("1m")
    .await?;
for t in &rows {
    println!("date={} delta={} theta={} vega={}", t.date, t.delta, t.theta, t.vega);
}

Parameters

NameTypeRequiredDefaultDescription
symbolstringyesTicker symbol (e.g. AAPL)
expirationdateyesExpiration date YYYYMMDD
datedateyesDate YYYYMMDD
strikestringno*Strike price in dollars as a string (e.g. 500 or 17.5). Use * for wildcard selection.
rightstringnobothOption side. Accepted values: call, put, both.
intervalstringno1sInterval preset or millisecond string. Defaults to 1s when omitted — matching the upstream ThetaData Python library. Accepted values: tick, 10ms, 100ms, 500ms, 1s, 5s, 10s, 15s, 30s, 1m, 5m, 10m, 15m, 30m, 1h.
start_timestringno09:30:00Start time filter
end_timestringno16:00:00End time filter
annual_dividendfloatnoAnnualized expected dividend amount, in dollars per share, used in the Greeks calculation (e.g. 2.5 is $2.50 per share per year).
rate_typestringnosofrRisk-free-rate source used in the Greeks calculation. Accepted values: sofr, treasury_m1, treasury_m3, treasury_m6, treasury_y1, treasury_y2, treasury_y3, treasury_y5, treasury_y7, treasury_y10, treasury_y20, treasury_y30.
rate_valuefloatnoInterest rate as a percent (4.36 means 4.36%, matching the InterestRateTick.rate convention) used in the Greeks calculation. Applied when rate_type selects a manual rate.
versionstringnolatestGreeks model version. Accepted values: latest, 1.
strike_rangeintnoStrike range filter
start_datedatenoStart date YYYYMMDD
end_datedatenoEnd date YYYYMMDD
timeout_msintnoPer-request deadline in milliseconds. 0 means no deadline.

Response

Rows of GreeksFirstOrderTick:

FieldTypeDescription
ms_of_dayi32Milliseconds since midnight Eastern Time.
bidf64Last NBBO bid price.
askf64Last NBBO ask price.
deltaf64Sensitivity of the option value to a one-dollar move in the underlying.
thetaf64Sensitivity of the option value to the passage of time.
vegaf64Sensitivity of the option value to a change in implied volatility.
rhof64Sensitivity of the option value to the risk-free rate.
epsilonf64Sensitivity of the option value to the dividend yield.
lambdaf64Percent change in the option value per percent change in the underlying.
implied_volatilityf64Implied volatility solved from the option price.
iv_errorf64Residual pricing error of the implied-volatility solve.
underlying_ms_of_dayi32Timestamp of the underlying price, milliseconds since midnight ET.
underlying_pricef64Underlying price used in the calculation (midpoint of the underlying).
datei32Trading date as a YYYYMMDD integer.

Wildcard requests additionally populate expiration (YYYYMMDD), strike (dollars), and right ("C" / "P") on every row to identify the contract; on single-contract requests these are absent (None / null / undefined; the Rust and C rows carry the documented 0 / 0.0 / '\0' fills).

Released under the Apache-2.0 License.