Early Assignment of Covered Calls Position in Wheaton Precious Metals Corp.

I was notified early this morning by Schwab that the five Call options in my Wheaton Precious Metals Corp. (ticker WPM) November 29th, 2024 Covered Calls position were exercised yesterday.  Because the Wheaton Precious Metals stock price increased from $59.74 when this position was established to $62.96 at yesterday's market close, the original $.88 time value in the Calls when the position was established had declined on yesterday's market close to $0.00.  So, with eight days remaining until the November 29th options expiration date, the owner of these Calls exercised their option to buy the 500 WPM shares at the $58.00 strike price in order to receive today's $.155 per share ex-dividend.  Although I will not receive todays' ex-dividend, I am pleased with the +62.0% annualized-return-on-investment (aroi) result achieved today by early assignment since it exceeds the maximum +38.6% aroi that might have been achieved if this position instead remained in-the-money and would therefore be assigned on its November 29th, 2024 options expiration date.   

The post when this Wheaton Precious Metals Covered Calls position was originally established is here.  As detailed below, the return-on-investment result for this Wheaton Precious Metals Covered Calls position was +1.5% absolute return in 8 days (equivalent to a +62.0% annualized return-on-investment).

Wheaton Precious Metals Corp. (WPM) -- Covered Calls Position Closed by Early Assignment
The simultaneous buy/write transaction was:
11/12/2024 Bought 500 Wheaton Precious Metals Corp. shares @ $59.74.
11/12/2024 Sold 5 WPM 11/29/2024 $58.00 Call options @ $2.62 per share.
Note: The Implied Volatility of the Call options was 27.7 when this position was transacted.
11/21/2024 Five WPM 11/29/2024 $58.00 Calls exercised early, so the Calls expired and the 500 Wheaton Precious Metals shares were sold at the $58.00 strike price.

The overall performance results (including commissions) for this Wheaton Precious Metals Covered Calls position are as follows:
Covered Calls Cost Basis: $28,563.35
= ($59.74 - $2.62) * 500 shares + $3.35 commission

Net Profit Components:
(a) Options Income: +$1,306.65
= ($2.62 * 500 shares) - $3.35 commission
(b) Dividend Income (WPM Call options exercised early on Nov. 20th, the business day prior to the Nov. 21st, 2024 ex-div date): +$0.00

(c) Capital Appreciation): -$870.00
+($58.00 strike price - $59.74 stock purchase price) * 500 shares

Total Net Profit (If options exercised early): +$436.65

= (+$1,306.65 options income +$0.00 dividend income -$870.00 capital appreciation)

Absolute Return-on-Investment: +1.5%

= +$436.65/$28,563.35

Annualized Return-on-Investment (If option exercised early): +62.0%

= (+$436.65/$28,563.35) * (365/9 days)