Cboe Exchange Market Statistics for Wednesday, December 18, 2019 https://markets.cboe.com/us/options/market_statistics/current/?mkt=cone TIME CALLS PUTS TOTAL P/C RATIO 09:00 AM 330473 340189 670662 1.03 09:30 AM 563646 549968 1113614 0.98 10:00 AM 765748 756249 1521997 0.99 10:30 AM 913998 1254989 2168987 1.37 11:00 AM 1068634 1428766 2497400 1.34 11:30 AM 1307236 1559590 2866826 1.19 12:00 PM 1458479 1645816 3104295 1.13 12:30 PM 1564800 1722922 3287722 1.10 01:00 PM 1685525 1801829 3487354 1.07 01:30 PM 1829950 1935841 3765791 1.06 02:00 PM 1948332 2020890 3969222 1.04 02:30 PM 2082340 2156320 4238660 1.04 03:00 PM 2287969 2319328 4607297 1.01 03:15 PM 2310085 2376992 4687077 1.03