Tag: Twitter

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Who Tweets Wins

Today’s title is inspired from the British Special Air Service (SAS) famous catchphrase, ‘Who Dares Wins’ – similar variations of which have been adopted by several elite army units around the world. The motto is often credited to the founder of the SAS, Sir David Stirling (although similar phrases can be traced back to ancient Rome – including ‘qui audet adipiscitur’, which is Latin for ‘who dares wins’). The motto was used to inspire and remind soldiers that to successfully accomplish difficult missions, one has to take risks (Geraghty, 1980).

In the world of economics and finance, the concept of risk is endemic to investments and to making decisions in an uncertain world. The ‘no free lunch’ principle in finance, for instance, asserts that it is not possible to achieve exceptional returns over the long term without accepting substantial risk (Schachermayer, 2008).

Undoubtedly, one of the riskiest investment instruments you can currently get your hands on is cryptocurrencies. The most well-known of them is Bitcoin (BTC), and its price has varied spectacularly over the past ten years – more than any other asset I have laid my eyes on in my lifetime.

The first published exchange rate of BTC against the US dollar dates back to 5 October 2009 and it shows $1 to be exchangeable for 1309.03 BTC. On 15 December 2017, 1 BTC was traded for $17,900. But then, a year later the exchange rate was down to just over $1 = $3,500. Now, if this is not volatility I don’t know what is!

In such a market, wouldn’t it be wonderful if you could somehow predict changes in market sentiment and volatility trends? In a hot-off-the press article, Shen et al (2019) assert that it may be possible to predict changes in trading volumes and realised volatility of BTC by using the number of BTC-related tweets as a measure of attention. The authors source Twitter data on Bitcoin from BitInfoCharts.com and tick data from Bitstamp, one of the most popular and liquid BTC exchanges, over the period 4/9/2014 to 31/8/2018.

According to the authors:

This measure of investor attention should be more informed than that of Google Trends and therefore may reflect the attention Bitcoin is receiving from more informed investors. We find that the volume of tweets are significant drivers of realised [price] volatility (RV) and trading volume, which is supported by linear and nonlinear Granger causality tests.

They find that, according to Granger causality tests, for the period from 4/9/2014 to 8/10/2017, past days’ tweeting activity influences (or at least forecasts) trading volume. While from 9/10/2017 to 31/8/2018, previous tweets are significant drivers/forecasters of not only trading volume but also realised price volatility.

And before you reach out for your smartphone, let me clarify that, although previous days’ tweets are found in this paper to be good predictors of realised price volatility and trading volume, they have no significant effect on the returns of Bitcoin.

Article

References

Questions

  1. Explain how the number of tweets can be used to gauge investors’ intentions and how it can be linked to changes in trading volume.
  2. Using Google Scholar, make a list of articles that have used Twitter and Google Trends to predict returns, volatility and trading volume in financial markets. Present and discuss your findings.
  3. Would you invest in Bitcoin? Why yes? Why no?
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A public Tweet

Valued by private investors at more than $10 billion, the future listing on the stock market of Twitter, is an eagerly anticipated event. The necessary forms have been submitted to the US Securities and Exchange Commission (SEC) ahead of the initial public offering (IPO). Twitter will be looking to avoid the mistakes made by Facebook when they were first listed in May last year. Twitter has also announced its intentions to purchase MoPub, which is a firm specialising in mobile advert exchanges.

So, what will this listing mean for Twitter? The public will now be able to purchase shares in Twitter, in much the same way as you can buy shares in RBS or Facebook. The financial performance of Twitter will come under much greater scrutiny from its shareholders, who will be interested in short term returns and long term stability. Becoming a public limited company will attract investors and is likely to provide a much larger scope for expansion for Twitter. However, as yet no details have been released on a likely date for the flotation or on the prices we can expect.

One thing Twitter will be trying to avoid is a repeat of the problems that beset Facebook and indeed of the problems that other public listings have created for giants such as Google, Zynga and Groupon. When Facebook moved to public ownership, its share prices initially fell below its IPO and subsequently Facebook lost more than half its value. More recent success in mobile advertising has restored the fortunes of this company, but Goldman Sachs, which is handling Twitter’s transition will be looking to avoid a similar occurrence. As Sam Hamadeh from PrivCo (a firm that gathers data on private companies) said:

Twitter will learn from Facebook’s flawed playbook and do the opposite … Unlike Facebook, which waited too long to IPO (until its growth rate decelerated), Twitter will IPO at just the right inflection point: while revenue grows in triple digits.

Twitter is a rapidly growing business, but still has significant scope for expansion and this move to public ownership may be just the thing. Setting the right IPO and the right date will be crucial, as a multitude of factors can and do affect the price of shares listed on the stock market. Twitter will also need to ‘focus on doing the right stuff’ to make a success of the listing and its purchase of Mopub looks to be a step in the right direction. For now, all we can do is speculate, but if the launch is successful, then the founders of Twitter are likely to bring in hundreds of millions of dollars each.

Twitte files for IPO The Telegraph, Sophie Curtis (13/9/13)
Twitter plans stock market listing (see also) BBC News (13/9/13)
Twitter files for IPO, hopes to avoid Facebook’s mistakes Independent, Nikhil Humar and James Vincent (12/9/13)
Facebook shares close 11% below flotation price BBC News (21/5/12)
Twitter fails to answer key IPO questions Financial Times, Richard Waters and April Dembosky (13/9/13)
Twitter IPO: how much is it worth? The Guardian, Juliette Garside (13/9/13)
Twitter IPO: Tech float successes and disasters The Telegraph, Gabrielle Putter and Szu Ping Chan (13/9/13
Twitter to see ‘strong demand’ for share sale BBC News (13/9/13)
Twitter IPO: Firm in stock market launch bid Sky News (13/9/13)

Questions

  1. What are the characteristics of a public limited company? Are there advantages and disadvantages?
  2. Which factors affect (a) the supply of shares and (b) the demand for shares?
  3. What mistakes were made by Facebook when it made the transition to public ownership?
  4. How does advertising generate revenue for Twitter?
  5. How might you go about valuing Twitter or Facebook?
  6. Companies such as Twitter and Facebook have hundreds of millions of subscribers. Are there network externalities of this?
  7. Twitter is purchasing MoPub. What type of takeover would you classify this as?