News
Stock market news, 6 October 2026
Stories built from filings and market data, dated 6 October 2026.
Movers · 6 Oct
Tuesday's biggest movers: United Microelectronics Corporation (NEW) sinks 8.9% and PTC jumps 33.5%
The largest moves among $20B+ companies, with the context the numbers give: how unusual each move was and any filing or earnings report behind it.
In the filings · 6 OctIn the filings: Rivian publishes an investor update; Coinbase announces a leadership change
The 8-Ks from big US companies that said something, from results to deals to executive exits, quoted straight from EDGAR.
Movers · 6 OctMonday's biggest movers: United Microelectronics Corporation (NEW) sinks 8.9% and PTC jumps 33.5%
The largest moves among $20B+ companies, with the context the numbers give: how unusual each move was and any filing or earnings report behind it.
Pre-market · 6 OctPre-market movers: Lamb Weston +4.84%, Shopify +3.96%
2 large US stocks gapping 3% or more before the open, with the filings and headlines behind each move.
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