It's more complicated than just a fork. Differently than the previous hard fork that split blockchains and created Bitcoin Cash, SegWit2X didn't offer replay protection, which means it was basically like a self-inflicted 51% attack [1], orchestrated by the core devs and other proponents.
The fact that is was called off gave temporary relief to the markets. It's hard to predict what will happen now, but at least it avoided tanking the market next week (for now).
The fact that is was called off gave temporary relief to the markets. It's hard to predict what will happen now, but at least it avoided tanking the market next week (for now).
[1] https://www.coindesk.com/bitcoins-bogeyman-cometh-segwit2x-5...