Early Assignment of Covered Calls Position in Philip Morris International

This morning I was notified that the three Philip Morris International (ticker PM) January 5th, 2024 $90.00 Call options were exercised yesterday which is the last business day prior to Philip Morris' ex-dividend date.  The original $.36 time value in the Calls when the position was established had declined on yesterday's market close to $0.00 and the owner of these Philip Morris International Calls exercised their option to buy the 300 shares at the $90.00 strike price in order to receive today's $1.30 per share ex-dividend.  

The post when this Philip Morris International Covered Calls position was originally established is here.  As detailed below, the return-on-investment result for this Philip Morris Covered Calls position was +0.4% absolute return in 7 days (equivalent to a +20.6% annualized return-on-investment).  

Philip Morris International (PM) -- New Covered Calls Position

The simultaneous buy/write transaction today was as follows:
12/13/2023 Bought 300 Philip Morris International shares @ $91.80 per share.
12/13/2023 Sold 3 Philip Morris 1/5/2024 $90.00 Call options @ $2.16 per share.  

12/20/2023 Philip Morris Call options owner exercised their three Call options, so the Covered Calls position was closed out early. The three PM Call options expired worthless and the 300 shares were sold at the $90.00 strike price.

The overall performance results (including commissions) for this Philip Morris International Covered Calls position was as follows:
Covered Calls Net Investment: $26,889.99
= ($91.80 - $2.16) * 300 shares + $2.01 commissions

Net Profit Components:
(a) Options Income: +$645.99
= ($2.16 * 300 shares) - $2.01 commissions
(b) Dividend Income (Call options exercised on the last business day prior to the Dec. 20th ex-dividend date): +$0.00
(c) Capital Appreciation (Philip Morris shares assigned early): -$540.00
+($90.00 strike price - $91.80 stock purchase price) * 300 shares

Total Net Profit: +$105.99

= (+$645.99 options income +$0.00 dividend income - $540.00 capital appreciation)

Absolute Return-on-Investment: +0.4%

= +$105.99/$26,889.99 

Annualized Return-on-Investment: +20.6%

= (+$105.99/$26,889.99) * (365/7 days)