Early Assignment of Covered Calls Position in Bank of America Corporation

I was notified by Schwab via email early this morning that the five Bank of America Corporation (ticker BAC) June 13th, 2025 Call options were exercised yesterday.  BofA's stock price increased slightly from $43.88 when this position was established to $44.12 at yesterday's market close, the original $.24 time value in the Calls when the position was established had declined on yesterday's market closer to $0.00.  So, with seven days remaining until the June 13th options expiration date, the owner of these Calls exercised their option to buy the 500 shares at the $42.50 strike price in order to receive today's $.26 per share ex-dividend.  Although I will not receive the ex-dividend, I am pleased with the +33.7% annualized-return-on-investment (aroi) result achieved since it slightly exceeds the maximum aroi that might have been achieved if this position instead remained in-the-money and would therefore be assigned on next Friday's (June 13th, 2025) options expiration date.   

The post when this Bank of America Corp. Covered Calls position was originally established is here.  As detailed below, the return-on-investment result for this Bank of America Covered Calls position was +0.6% absolute return in 7 days (equivalent to a +33.7% annualized return-on-investment).

Bank of America Corporation (BAC) -- Covered Calls Position Closed by Early Assignment

The buy/write transaction was as follows:
5/30/2025 Bought 500 shares of Bank of America Corp. stock @ $43.88 per share 
5/30/2025 Sold 5 BAC June 13th, 2025 $42.50 Call options @ $1.66 per share
Note: The Implied Volatility of these Calls was 23.3 when this position was established.
6/6/2023 Five Bank of America Calls were exercised on the last business day prior to their June 6th, 2025 ex-dividend date, so the Call options expired and the 500 Bank of America shares were sold at the $42.50 strike price.

The overall performance results (including commissions) are as follows:
Covered Calls Cost Basis: $21,113.35
= ($43.88 - $1.66) * 500 shares + $3.35 commission

Net Profit Components:
(a) Options Income: +$826.65
= ($1.66 * 500 shares) - $3.35 commission
(b) Dividend Income (500 shares assigned on 6/5/2025, the last business day prior to the 6/6/2025 ex-dividend date): = +$0.00
(c) Capital Appreciation (BAC shares assigned early on 6/5/2025): -$690.00
= ($42.50 strike price - $43.88 stock purchase price) * 500 shares

Net Profit (Bank of America shares assigned on 6/5/2025, the day prior to the June 6th ex-dividend date): +$136.65
= (+$826.65 options income + $0.00 dividend income - $690.00 capital appreciation)

Absolute Return-on-Investment: +0.6%
= +$136.65/$21,113.35
Annualized Return-on-Investment: +33.7%
= (+$136.65/$21,113.35) * (365/7 days)