Apple (AAPL) has posted a 40% gain so far in 2017, which has pushed its market cap up to $843 billion as of this writing.

You might not remember, but there was a time last year when Alphabet (GOOGL) overtook Apple (AAPL) as the largest company in the world. That didn’t last long, however, as you can see in the charts below. At this point Apple has a lead on Alphabet of nearly $200 billion in market cap. That’s more in market cap than all but a handful of companies in the S&P 500.