Official Cboe VIX closes show three consecutive sessions below 15 - 14.81 on September 18, 14.87 on September 21 and 14.21 on September 22 2026 - broken by 15.18 on September 23, then single sub-15 closes of 14.87 on September 25 and 14.84 on October 9; every other session from September 23 to October 13 closed between 15.01 and 16.39, and the index jumped to 16.87 on October 14. The longest run is three sessions against the five the melt-up-completion leg requires. This corrects 4.0.4, whose evidence recorded a 15.8 September 23 close from a secondary feed (the official close is 15.18) and did not capture the September 18-22 sub-15 closes. Series via Investing.com, matching FRED VIXCLS.