https://www.dxfeed.com/historical-tick-data/ they have some demo data from the flash crash on the link for free. From $59.
Nice, thanks for posting! I tried to replay the flash crash via TOS recently only to find out it was not available anymore. Time flies.
I still have it embedded in my memory. Told everyone to buy, I think I remember a few people who bought "too low" getting cancelled out.
I remember a Vpro documentary where Eric Hundsader, owner of NAnex showed some replays of the data. The crazy part was the lag everyone got. The timestamps vs the actual time was way behind. Only people catching the real market were those co-located.
CheckQuantpedia’s list of historical data providers. There are a lot of options you may choose from …