What happened Shares of Fastly (NYSE: FSLY) were climbing Tuesday as the edge-computing specialist rode a broader rebound in the high-growth tech sector, and as one analyst said the stock's post-earnings sell-off was overdone. So what After tech stocks broadly plunged Monday on inflation concerns and then opened Tuesday morning down sharply, the sector rebounded as investors took advantage of discounted prices. He acknowledged that slowing growth in Q1 and guidance calling for sequentially flat results in Q2 was disappointing, but in spite of that, he said that Fastly's share price decline had gone too far.