Powerbridge Technologies (NASDAQ: PBTS) stock will jump 3,000% or so at the open this morning. A 30 times stock price rise is nice to have but it does need to be a change in the real price to properly gain our attention. This isn't a change in the real price, this is a nominal price change. It's taking place for purely technical reasons. Those might spill over into a real price change as well but there's no guarantee of that.
As to what Powerbridge does, well, here's one description: “Powerbridge Technologies Co., Ltd. provides software application and technology solutions and services primarily in China.” The actual services are entirely sensible and reasonable ones to offer - import and export paperwork processing, just as one example. But they're also typically not high margin businesses, not things that anyone is going to build a profits powerhouse off of.
If we were to be a bit more cynical we'd note that Powerhouse tends to be a technological follower. Yes, sure, crypto mining was all the rage a couple of years back - PBTS was buying kit in April of this year, rather after that bubble seemed to have burst. Similarly, they've a plan to incorporate Chat GPT into some educational products - OK, but the excitement is in building ChatGPT.

Powerbridge Technologies stock price from NASDAQ Note that this is after the effect of the stock consolidation
This less than grand success at the - shall we say cutting white heat of the technological revolution has led to a considerable slump in the stock price. It was up over $1.60 last autumn - for a bit at least. Today it will open at about that level too. But in the interim there was that 6 cents price. And one of the things about the US markets is that you can only stay upon the main markets if you meet the $1 minimum bid price. Less than that - for too long - and it's off to the OTC with you.
The cure for this is a reverse stock split, a consolidation. Which is what Powerbridge has just done, at a 30 to 1 ratio. What were 30 pieces of stock are now the one. So, the price rises 30 times. This doesn't change the market capitalisation of the company, doesn't change the value of any shareholding. It just changes the nominal price so that it meets NASDAQ minimums.
Real price changes are going to have to wait for PBTS management to work out how to make good money in business, not tricks on stock exchanges.