TWSE:2317.TW 21 November 2025 - 22 November 2025

March 19, 2026, 11:52 AM EDT. Options for iShares Core S&P Total US Stock Market ETF (ITOT) with May 15 expiration began trading, featuring a $142 put and $145 call contract drawing investor interest. The $142 put has a $2.00 bid, suggesting an effective purchase price of $140 if assigned, representing a 1% discount to the current $143.40 share price. Statistical analysis shows a 58% chance this put expires worthless, offering a 1.41% return over six weeks, annualized at 9.02%, as per Stock Options Channel's YieldBoost metric. The $145 call has a $2.45 bid, implying a 2.82% total return if shares are sold at that strike by May expiration. Both strikes are roughly 1% out-of-the-money, highlighting the potential for option premium collection but capping upside if exercised. Investors are advised to weigh these factors alongside the ETF's trading history and fundamentals.