Biggest Stock Gainers Today (December 5, 2025): TGL, SMX, WHLR, DBRG, TORO, PRAX and RBRK Lead a Volatile Session

The U.S. stock market logged another upbeat session on Friday, December 5, 2025, with the S&P 500, Nasdaq 100 and Dow all edging higher. But beneath the index-level moves, a cluster of highly volatile small caps, high‑growth tech names and a few mid‑caps stole the show with spectacular double‑ and even triple‑digit gains. StockAnalysis+1