Optionistics
Option Calculators and Stock Screeners
Symbol Lookup
HOT SHEET REGISTER FAQs CONTACT US RSS

Option Price History for RDFN

REDFIN CORPORATION COMMON STOC (RDFN) Price History & Volatility Data

Enter Symbol
  
RDFN         
 
REDFIN CORPORATION COMMON STOC  Last 9.63   Change 0.13
No data for option symbol: RDFN 231208C00007500

The Price History feature shows historical prices for stocks, indexes, ETFs, and options.

  • Trade Date - date the security last traded.
  • Last Price - the last trade price.

    For options:
  • Theoretical Price - price derived using the historical volatility of the underlying stock or index.
  • Charted Price - the split between the bid and ask.

For options, the Greeks can be charted along with the option price. The chart uses the split between the bid and the ask as the price.

The following Greeks can be charted:

  • Delta - how much the option price will change for each move in the underlying.
  • Gamma - the rate at which the optipon price changes as delta changes
  • Vega - how the option prices changes relative to volatility
  • Rho - how much the option price will change when the interest rate changes
  • Theta - the rate at which the option price declines as time passes

The history of implied volatility shows how expensive options were over the selected price history. This is useful for determining the relative price of options, and can be help decide when to buy an option (when it's cheap), or sell an option (when it's expensive).

Data Provided by HistoricalOptionData.com
Optionistics is not a registered investment advisor or broker-dealer. We do not make recommendations as to particular securities or derivative instruments, and do not advocate the purchase or sale of any security or investment by you or any other individual. By continuing to use this site, you agree to read and abide by the full disclaimer.