News has it that Snapchat, some sort of app thing for the young, is about to float itself on the stock market, with a suggested valuation of $25bn. Even at today's international exchange rates that seems a bit much for an app to be worth, but there it is. It's nothing compared to some of the tech world's largest speculative floats and the crazy valuations their share sales hit, though.
$168 billion, Alibaba
Some sort of shopping thing in China, we think. Must be doing well if it was worth that much when it hit the markets in 2014. Probably the Chinese equivalent of Tesco Direct.
$82 billion, Facebook
It waited to sell itself to the market, and reaped the rewards of a huge valuation thanks to it being on even your dad's phone by 2012. Went down a bit in the weeks after launch, but if you'd bought a few you'd still have more than doubled your money by now, tripled it if you sold high.
Snapchat is here on the 10 biggest tech IPO list, if it goes ahead as planned. Quite high up. Well done, youths.
$14.2 billion, Twitter
Started off well, but is now worth around half what it was back in 2013, because people keep deleting their accounts in a huff and staying away from it for as long as 36 hours before going back to shout about politics in an environment where no one actually listens.
$13 billion, Groupon
Back in 2011 this used to be a thing. From what we recall of Groupon, it sent people emails about spa days in the vicinity, emails which were deleted without action. Sometimes it had deals on paintballing. It's now worth less than a quarter of its launch price, ironically making an unwanted bargain out of itself.
$8 billion, Line
The parent company of some messaging apps we barely even use over here. Free money for everyone. Should try to fire up that Android development kit again, as there's big money to be made.
$7 billion, King.com
Made that game no one seems to like yet everyone plays. For some reason market forces decided it was worth billions for this one hit, and was enough to eventually get it bought by Activision for $5.9 billion.
$7 billion, Zynga
Had more than one hit, but if you'd bet the farmville on this one you'd have lost big time -- it's currently 70 per cent down on its 2011 launch day high.
$4.1 billion, Fitbit
Some companies still make actual products, even if we don't really need them. Sadly for its new owners it's now worth around a third of what it was in the days after its public sale, as smartphone apps and smarter watches take its lunch money.
$3 billion, GoPro
Makes an actual product too. Was worth around $3bn shortly after it went public in 2014, but is now worth less than a third of that seeing as everyone's got an HD-ready drone following them to capture extreme moments now. [WSJ]