Stock market news, 12 October 2026
Stories built from filings and market data, dated 12 October 2026.
Monday's biggest movers: T-Mobile US sinks 13.3% and Crown Castle jumps 15.6%
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 · 12 OctPre-market movers: NIO -3.07%
1 large US stock gapping 3% or more before the open, with the filings and headlines behind each move.
Earnings preview · 12 OctAlcoa reports Thursday: the numbers to know before AA earnings
Consensus is $1.65 a share. Last quarter's revenue: $4.0B, +31.4% year over year.
Earnings preview · 12 OctTSMC reports Thursday: the numbers to know before TSM earnings
Consensus is $4.45 a share vs $2.92 a year ago. Last year's revenue: $88.3B, +25.0% year over year.
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