It's very good news, soon it will overtake Alphabet A/Google. It show how big and large people are interested with Bitcoin, not surprised Miami and Tesla invested on Bitcoin... they know what they do.
Who's Tencent?
China company who has created WeChat and now known as created many mobile/video games.
How much Bitcoin does Tencent own?
I don't think Tencent own any Bitcoin (but who knows if they already buy and didn't publish it)
But if you referring to @OP post about the price on Tencent, it's a stock.