After careful examination, the last S-1 supplementary document for LTC was submitted on January 16, 2025. The next day, Nasdaq submitted the 19b-4 form for the LTC ETF, which means that the application has officially entered the 240 day review period, and before September 17, the LTC ETF may be approved. Looking at other potential ETF targets, XRP and DOGE's S-1 supplementary documents were mainly submitted in June and July of 2025 due to intensive revisions caused by the SEC's centralized review.