GameStop’s stock is back to the races Friday, and the overall U.S. market is down again, as the saga that’s captivated and confused Wall Street ramps up the drama.

GameStop shot up more than 70% in midday trading, clawing back most of its steep loss from the day before, after Robinhood said it will allow customers to start buying some of the stock again. GameStop has been on a stupefying 1,900% run over the last three weeks and has become the battleground where swarms of smaller investors see themselves making an epic stand against the 1%.

The assault is directed squarely at hedge funds and other Wall Street titans that had bet the struggling video game retailer’s stock would fall. A couple have already essentially admitted defeat, with one saying Friday it would stop publishing reports on stocks it expects to fall. The army of smaller and novice investors, meanwhile, is pledging to keep up the momentum for GameStop’s stock in hopes of inflicting more pain on the financial elite.

The moves are reverberating across Wall Street, as concerns rise about how much damage the frenzy could do as its effects spill out into the broader market. The big professional investors who had been banking on a drop for GameStop’s stock are taking sharp losses. Investors say that’s pushing them to sell other stocks they own to raise cash, and that is helping to pull down parts of the market completely unrelated to the revolt by Main Street investors.