[bapbap]

Just out of interest, does anyone know how long it took between the time the tweet was published and how long it took for an identifiable/linked rise in share price? The article does mention "Less than two hours later" but I'm interested to know how quickly people react to a tweet like this.

Edit: Google Finance seems to suggest less than one minute. I'm not sure if any data is freely available that would allow me to see this jump in the seconds range.

[grannyg00se]

The initial response was within seconds. But the surge continued for minutes. Well, the surge hasn't really stopped yet depending on how you look at it.

Looking at just one data stream.... The 21 seconds between 14:21:10 and 14:21:31 there were 23 trades. In the next SECOND at 14:21:32 there were 105 shares traded. And the price jumped, in that one second, more than the entire previous minute. So I'd say 14:21:32 is when the market started reacting. Not sure exactly when the tweet went out.

A search for nasdaq time and sales will get you the second by second data.

[bapbap]

Thanks for this, I find that amazing

[rch]

Wouldn't the trading algorithms be tuned to amplify a price move for AAPL in particular? What if the subject had been Caterpillar?

[clarky07]

Yeah it was pretty much immediate. The volume surge was huge.