The reported SPY close of $292.45 occurred around 4:00, not 4:15. From what I see, SPY rose in after-hours trading and reached $292.84 at 4:15. This is nearly in line with the price of the option, which can trade until 4:15.
Fidelity is providing stale quotes.
The SPY's 4:00 PM close was $292.45 but the last trade in the SPY 8/21 292 call was as you posted:
$0.86 bid x $0.94 ask
This option quote occurred at 4:14:59 PM at which time the SPY was at $292.86 x $292.89
The market maker has no incentive to offer the exact intrinsic value so the option quote will always be a ...
As you note, charts typically show the value at expiration. My broker will also show a midpoint along with the current price curve. This seems to be what you want.
As Bob notes, these values can all be calculated with an option pricing model, typically Black-Scholes (as D noted).
In the graph above, each line is showing profit (loss) vs price, at a given ...
How do we create a chart modeling all that?
You could create a contour (3-D) plot with the following axes:
Time to maturity
Since option value is easy to compute with the Black-Scholes model for various strikes and TTMs (keeping other inputs constant), it should be a straightforward plotting exercise. I would expect the ...
ATM options have the most theta, theta does not change linearly with time, and rate of change of intrinsic value decreases the further away from ATM the option is (an option $10 ITM may only have $7 intrinsic value).
An option $10 ITM will have $10 of intrinsic value.
Delta will depict the rate of change of intrinsic value
Typical option graphs are ...
There are 3 expiration cycles for stocks:
January: January, April, July, October
February: February, May, August, November
March: March, June, September, December
All optionable stocks will have the current month, the following month and the next two months in the cycle. If the stock has LEAPs, there will be two subsequent January expirations as well. ...
The premium received is unrestricted and is yours to do whatever you want with it.
A cash-secured short put requires that you have the cash in your account to buy the stock if you are assigned. It doesn't matter what the source of the cash is.
In your example, your CSP requirement is $9,000. Since the premium received from writing the $90 put is $1,000 ...