<p>SEC Staff is pleased to provide the following updates:</p>
<ul>
<li><span> </span><span>Updated Metrics</span>. Data series containing daily cancel-to-trade ratios, trade-order volumes, hidden rates, and odd-lot rate metrics for Q2 2021 are now available. This data extends to 114 total months the data series you can view in the <a title="data visualization tool" href="https://lnks.gd/l/eyJhbGciOiJIUzI1NiJ9.eyJidWxsZXRpbl9saW5rX2lkIjoxMDIsInVyaSI6ImJwMjpjbGljayIsImJ1bGxldGluX2lkIjoiMjAyMTA4MTguNDQ3NDMwNjEiLCJ1cmwiOiJodHRwOi8vd3d3LnNlYy5nb3YvbWFya2V0c3RydWN0dXJlL2RhdGF2aXMuaHRtbCJ9.fdK6ZV1ps3QxOxbKaIfSsLAAiuxX5b7ZtBLvAL4kwvs/s/1172970983/br/111110225252-l" target=" blank">data visualization tool</a> as well as <a title="download in CSV format" href="https://lnks.gd/l/eyJhbGciOiJIUzI1NiJ9.eyJidWxsZXRpbl9saW5rX2lkIjoxMDMsInVyaS ....