I think the driver for the bump in price is the news that the mini-set will be sold in USDC, DEC or SPS. $5 in USDC, 5,000 DEC or 350 SPS, meaning that an expected price for SPS before the pre-sale is $5/350.

EDIT: I see this point was already made, maybe I should read the comments before replying next time :-)

There was a gap, we are seeing that gap narrow now.

On a side note, I bought SPS on Base via my Coinbase wallet, however the Coinbase wallet was causing me problems when bridging my SPS in-game. I can see the SPS in Coinbase OK on the in-game interface but my Coinbase wallet extension wouldn't connect to the bridge.

I solved the problem thanks to some advice from Clayboyne. I set up a Rabby wallet extension ( I use Brave), transferred my SPS from my coinbase wallet to Rabby and connected my Rabby wallet in-game...the bridge went smooth and fast after that ( of course testing with a small quantity first and then sending over in tranches). A bit annoying needing to buy some ETH top add to Rabby for gas, but the gas fees for moving SPS on Base after that were super super low ( maybe not even 1c)