The BBC seem to be covering this comparing it to the last election in 2015. However, since we had a hung parliament as recently as 2010, I'd thought I'd compare today's results to that instead.
Gains and losses of major UK Political Parties since 2010 election. (*4 seats yet to hand in results at time of posting)
These data show Labour with some marginal gains and the Conservatives got slightly more, although the biggest rise to be seen comes from the SNP. As you can see in the chart, all these gains seem to come from the collapse of the Liberal Democrats. There was no change in the sum balance of power held by the other parties.
How the PM is going to get on with the DUP is anyone's guess. What do you think?