there's a video i think its raoul pal of real vision that talked about Walmart that will possibly join. but this will depend on the owner if he sees it as a plus for his business.
the first to join will normally be the companies in finance because they are the ones who'd see the benefits.
I'm starting to wonder which company will be next? Will it be Walmart, Amazon, or Apple? What do you think will happen if one (or all) of these major companies invest in Bitcoin? Will it benefit the market immediately? Or will it take some time? Do you think such companies will control a huge portion of Bitcoin's supply, effectively making it centralized? Your input will be greatly appreciated. Thanks in advance.

The most interesting point in your topic a question about centralization. We know Bitcoin is a decentralized cryptocurrency, but if a major part of Bitcoin accumulates by all the centralized organizations then we will face a problem. Because due to holding a major part of the Bitcoin they will able to manipulate the Bitcoin market as they want. I know if one or all of these companies invest in Bitcoin then the price would record a new ATH and also it would be a massive adaption. But most probably it would drive to centralization as you said. Rather than accumulate a huge amount, if they accept Bitcoin for payment, then it would be massive and long time adaption forever until they accept.
It's already here now, its called TBTF - TOO BIG TO FAIL, once any financial instrument is a critical part of the retirement system, and/or cop-fireman pension system, then the FED will bail out every loss.
We're here now,
The irony of course is that BITCOIN Satoshi mythological narrative was that BTC was going to free us from FIAT and the system, the reality is that BITCOIN is just same-same with 100% absolute tracking, and loss of privacy.
Go figure, ahh but you all going to get rich on virtual paper.
Starting in the Fall of 2000 during the COVID spending spree, it was decided by Institutions that BITCOIN was the place to park your cash, thus $350B of new money flowed into BITCOIN raising the price from $10k to $63k, now with a 20% pullback, its not like the real 'money market', its more like a casino ( which reality thinkers already knew )
The institutions are frantic to find places to park cash that isn't theres, all the new money that came into BTC was either OPM, or borrowed (Musk)
There is no doubt at this point in time that FED covers both BTC-ETF's, and BTC itself, given IRS control's COINBASE.
we are about to celebrate which big company is going to join and we already are assuming Walmart or could be Apple which could skyrocket the price. you just appear to poop the party.